Inter-university Consortium for
Political and Social Research
Health Interview Survey, 1978
National Center for Health Statistics
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_ ,._i ,/.. *,_
Politicaland Social Research
Health Interview Survey, 1978
National Center for Health Statistics
Health Interview Survey, 1978
National Center for Health Statistics
Inter-university Consortium for Political and Social Research
P.O. Box 1248
Ann Arbor, Michigan 48106
Second ICPSR Edition, 1986
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Acknowledgment of Assistance
All manuscri pts utilizing data made avai able through the
Consortium should acknowledge that fact as well as identify
the original collector of the data. The CPSR Council urges
all users of ICPSR data facilities to follow some adaptation
of this statement with the parentheses indicating items to
be filled in appropriately or deleted by the individual
The data (and tabulations) utilized in this
(pub1 ication) were made available (in part) by
the inter-university Consortium for Political and
Social Research. The data for Health Interview
Survey, 1978 were originally collected by the
U.S. Bureau of the Census for the National Center
for Health Statistics. Neither the original
collector of the data nor the Consortium bear
any responsibility for the analyses or interpretation
In order to provide funding agencies with essential
information about the use of archival resources, and to
facilitate the exchange of information about ICPSR
participant’s research activities, each user of the ICPSR
data facilities is expected to send two copies of each
completed manuscript or thesis abstract to the Consortium.
Please indicate in the cover letter which data were used.
Table of Contents
Study Description I
Sampling Information III
Weighting and Estimating Procedures IV
Data Collection lnformat ion VI
File Structure VI
Codebook Information VI I
ICPSR Processing Information VI I I
Variable Description List XXI
Part 1: Household File
Part 2: Person File
Part 3: Condition Fi I e
Part 4: Hospitalizati on File
Part 5: Doctor Visit File
1. Special Place
2. Industry Detail Code
3. Industry Recode 1
4. Industry Recode 2
5. Occupation Detail Code
6. Occupation Recode 1
7. Occupation Recode 2
8. Diagnostic Codes
9. Diagnosis Recode 1
10. Diagnosis Recode 2
11. Diagnosis Recode 3
12. Injuries - Class of Accident Codes
13. Diagnosis Recode 4
14. Operation Codes
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The Health Interview Survey (HIS) assesses the amount
and distribution of illness, disability, and chronic
impairments, and the type and duration of health services
received. It proposes to inform legislation regarding
health expenditures, to monitor occurrence and severity of
illness and disability. and to aid in the design of accident
prevention programs and measure their success. The research
design consists of continuous sampling and interviewing
of the civilian noninstitutional population of the United
States. The data collection was conducted by the U.S.
Census Bureau and the initial processing done by the
National Center for Health Statistics.
The Health Interview Survey attempts to describe the
social, demographic and economic aspects of illness,
disability and medical services. Since the focus of the
interview data is on the impact these health matters have on
the individual rather than on medical criteria, the concepts
of morbidity, disability, and the use of services differ
from those used in medical and scientific studies.
For purposes of HIS, morbidity is defined as a
departure from a state of physical or mental well-being,
resulting from a disease or injury of which the affected
individual is aware. (Awareness is defined as a measurable
degree of impact on the individual in terms of restrictions
and disability.) Horbidity includes not only active or
progressive disease, but also impairments. The existence of
morbidity in an individual is referred to as a morbidity
condition or, in this study, a condition.
During the course of the condition there may be periods
when the individual considers himself/herself to be sick or
injured. These periods are referred to as episodes of
illness. For HIS purposes, the start or onset of the
condition is considered to be the time when the individual
first becomes aware of it.
The disability terms used in HIS may be grouped into
the following categories: (1) terms describing the
individual’s status during a specified day or number of
days. which are equally applicable to acute or chronic
conditions. to all members of the population, and to any day
of the week: (2) terms describing the individual’s status
during a specified day or number of days, which apply to
both acute and chronic conditons. but only to certain
members of the population on days they would have been
working or going to school: and (3) terms applying to only
The Health Interview Survey measures the utilization of
medical services and facilities in terms of medical
attention, dental care, and hospitalizations; uses of X-ray
facilities, preventative care services, nursing care
services. and prosthetic appliances and devices:
self-treatment; and other similar components of medical
care or services.
Two principal concepts in the area of medical care
included in HIS are the physician visit and the
classification of visits by type of service. These are
paralleled by similar concepts in the area of dental care.
Included in HIS are visits during which the service was not
given by the doctor or dentist, but by some other person
acting under the physician’s or dentist’s supervision.
Excluded are visits during which the service consisted of a
single procedure administered to a number of people who all
came for the same purpose, as in a glaucoma or a diabetes
HIS diagnostic coding is taken from the International
Classification of Diseases, Eighth Revision, adapted for use
in the United States. Further explanation of HIS diagnostic
and medical coding is presented in the appendix.
The sampling plan of the survey follows a multi-stage
probab i 1 ty design which permits a continuous sampling of
the civi ian noninstitutional population of the United
States. The sample was designed so that the sample of
households interviewed each week was representative of the
target population and so that weekly samples were additive
In the first stage of the sampl ing process, primary
sampling units (PSU) were selected f rom a universe of 1,900
such units which were geographically defined. Each PSU
consisted of a county, a small group of contiguous counties,
or a standard metropolitan statistical area (SMSA). Within
PSU’s, the ultimate stage units, called segments, were
defined in such a manner that each segment contained an
expected six households. Three general types of segments
were used: area segments, which are defined geographically;
list segments, using 1970 census registers as the frame:
and permit segments, using updated lists of building
permits issued in sample PSU’s since 1970.
Census address listings were used for all areas of the
country where addresses were well-defined and could be used
to locate housing units. About two-thirds of the HIS sample
were selected from the larger urban areas of the United
The usual HIS sample consisted of approximately 12,000
segments containing 51.000 assigned households, of which
9.000 were vacant, demolished or occupied by persons not in
the scope of the survey. The 42,000 eligible households
yielded a probability sample of about 116.000 persons in
40,000 interviewed households per year.
Weighting and Estimating Procedures
Since the design of the Health Interview Survey is a
complex multi-stage probability sample, it was necessary to
use complex procedures in the derivation of weights for
estimation. These procedures included the adjustment of
basic sample probability and the use of non-response and
ratio estimation factors. The intent of the ratio estimation
process was to reduce sample variance by making the sample
more closely representative of the population by age, sex,
color and residence. The four following operations were
used to compute the weights:
1. BASIC SAMPLE PROBABILITY adjustment. The estimate
was inflated by the reciprocal of the probability of
selection. The probability of selection is the product of
the probabilities of selection from each step of selection
in the design: PSU. segment, and household.
2. NONRESPONSE adjustment. The estimates were inflated
by a multiplication factor which has as its numerator the
number of sample households in a given segment and as its
denominator the number of households interviewed in that
3. FIRST-STAGE RATIO adjustment. Sampling theory
indicates that the use of auxiliary information which is
highly correlated with the variables being estimated
improves the reliability of the estimates. To reduce the ,’
variability between PSU’s within a region, the estimates
were ratio adjusted to the 1970 population within 12 color
4. POST STRATIFICATION BY AGE-COLOR-SEX. The estimates
were ratio adjusted within sixty age-color-sex cells to an
independent estimate of population of each cell for the
survey period. These independent estimates were prepared by
the Bureau of the Census. Both the first stage and the
post-stratified ratio adjustments required that
multiplication factors be applied to the weight of each
elementary unit (person, household, condition, and
hospital ization) .
Each week’s sample represents the characteristics of the
population during a specific week. The samples can be
coordinated to represent population characteristics over an
extended time period. Some statistics require an average of
sums, while others involve multiplication by a 6.5 weight.
Prevalence statistics (e.g., the number of persons with
speech impairments or number of persons classified by time
interval since last physician visit), were calculated for
each calendar quarter by averaging the estimates for all
weeks of interviewing in the quarter. Prevalance data for a
year were obtained by averaging the four quarterly figures.
_, _,lhL---.-- ..‘
For those statistics measuring the number of
occurrences during a specified time period (e.g., the
incidence of acute conditions or number of disability days)
a similar procedure was used, but it was interpreted
differently. For these items the questionnaire asked about
the respondent’s experience over the two calendar weeks
prior to the week of interview. The estimated quarterly
total for the statistic was calculated by multiplying the
average two-week estimate of the thirteen successive
samples taken during the period by 6.5. The annual total is
the sum of the four quarters. This means that the
experiences of people interviewed bi-weekly for a year are
treated as though they measure the total experience of one
The survey questionnaire uses a twelve-month recall period
for hospitalizations. Information was obtained as to the
date of hospital entry and the duration of stay. Analysis
of this information, and of special studies, indicates that
subjects are more likely to under-report hospitalizations as
the time elapsed between discharge and interview increases.
The net under-reporting within a twelve month recall is
approximately 10%. while under-reporting of discharges
within six months of the week of interview is less than 5%.
For this reason the hospital discharge data in this report
are based on hospital discharges reported to have occurred
within six months of the interview.
Since the interviews were evenly distributed according to
weekly probability samples throughout the interviewing year,
no seasonal bias was introduced by doubling the six month
recall data to produce an annual estimate for that year of
interviewing. Doubling the six months data imputes to the
entire year preceding the interview the rate of hospital
discharges actually observed during the six months prior to
interview. Estimates of the number of persons with hospital
episodes (as opposed to estimates of the number of hospital
discharges) are based on twelve-month recall data since a
person’s twelve-month experiences cannot be obtained by
doubling his/her most recent experience.
The health interview questionnaire consists of a core
of questions concerning items about which information has
been collected each year. These basic items include acute
conditions and injuries, chronic conditions, days of
disability due to acute or chronic conditions, limitation of
activity caused by chronic conditions or impairments,
hospitalizations, and the social, economic and demographic
characteristics of the interviewed sample persons.
Supplemental questionnaire items are added to the basic
questionnaire on a planned schedule.
The HIS questionnaire contains several types of pages.
Each subject responds to the “household” page, from which
basic information concerning the sample household is
compiled. The “probe’@ page is designed to collect
information about any illness or injury that the household
might have sustained during the preceding two weeks. The
subsequent “condition,” “doctor visit” and
“hospitalization” pages are used to gather detailed
information about health problems and treatments during the
past two weeks and about hospitalizations during the past
year. Two “person” pages are also included in the
questionnaire. The first identifies the household members’
level of education, veteran status and occupations. The
second identifies their income level and marital status.
Because of its magnitude, the Health Interview
Survey, 1978 is available only in OSIRIS or logicai record
format. Those who do not have the OSIRIS software should
order these data in logical record format.
The OSIRIS dictionary gives the format and other
information for variables in the OSIRIS data. The OSIRIS
data file is constructed with a single logical record for
each case. There are five files. The HOUSEHOLD file
has 55 variables on 41,277 cases. The PERSON file has
161 variables on 111.279 cases. The CONDITION file has
136 variables in 63,371 cases. The HDSPlTAL file has 107
variables on 14,829 cases. The DOCTOR VISIT file has 93
variables on 20,637 cases.
The OSIRIS data file can be accessed directly through
software packages or programs which do not use the OSIRIS
dictionary by specifying the tape locations of the desired
variables. These tape locations are given in the OSIRIS
_.... ._.. x . .
The example below is a reproduction of information appearing
in the machine-readable codebook for a typical variable.
The numbers in brackets do not appear, but are references
to the descriptions which follow this example.
. . . . . . . . . . . . . . . . . . . . . . ..*.......................
[l] ;:; ;I:; [23 TOTAL ROOM ND=98
 LOC 74 WIDTH 2
f5] HH.13 How many rooms are in this -7
COUNT THE KITCHEN BUT NOT THE BATHROOM.
[63 Actual number is coded.
01. 1 room
08. 8 ;ooms
98. DK or not reported
Cl1 Indicates the variable and reference numbers. A
variable and a reference number are assigned to each
item in the study. In this codebook, which documents
the archived dataset. these numbers are identical.
Should the data be formed into a fixed length record
file, new variable numbers may be assigned or created.
The reference number would remain unchanged and
correspond to those in this codebook.
 Indicates the-abbreviated (24 character maximum)
variable label used within OSIRIS to identify each
variable. An expanded version is located in the
variable description list.
VI I I
Indicates the designation of missing data. In this
example, code values equal to 98 are missing data
(ND=g8). Alternative statements for other variables
are “MD-0 or GE 98” (code values equal to 0 and equal
to or greater than 98 are missing data) or “ND GE 99”
(code values equal to or greater than 99 are missing).
Although these values are defined as missing data,
this does not mean that the user should not or can not
use this code value in a substantive role if he/she
c41 Indicates the sequential location and width of this
variable within the record when the data are stored on
magnetic tape. In this example, the variable named
“TOTAL ROOMS” is two columns wide and located in
the 74th column within the dataset. In a fixed length
record file of this data the locations will be
c51 Indicates the full text of the variable description
supplied by the origina 1 collectors of the data,
appended to the code va lues and their texual
C61 I ndicates an additional comment or explanation.
c71 ndicates the code values occurring in the data
f or this variable.
C81 ndicates the meaning of the codes.
ICPSR Processing Information
The data collection was processed according to the
standard ICPSR processing procedures. The data were checked
for illegal or inconsistent code values which, when found,
were recoded to OSIRIS missing data values. Statements
bracketed in “-9 and “S’ signs in the body of the codebook
were added by the processors for explanatory purposes.
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These definitions for selected terms used throughout the HIS
are excerpted from the NCHS Health Interview Survey
Procedure. 1957-1974. Rockville, ND: U.S. Department of
Commerce, National Technical information Service, 1975.
TERNS RELATING TO CONDITIONS
A morbidity condition, or simply a condition is any
entry on the questionnaire that describes a departure from a
state of physical or mental well-being. It results from a
positive response to one of a series of “medical-disability
impact” or ‘Ii 1 lness-recall” questions. In the coding and
tabulating process conditions are selected or classified
according to a number of different criteria such as whether
they were medically attended, whether they resulted in
disability, or whether they were acute or chronic: or
according to the type of disease, injury, impairment. or
symptom reported. For the purposes of each published report
or set of tables. only those conditions recorded on the
questionnaire that satisfy certain stated criteria included.
An acute condition is defined as a condition that has
lasted less than 3 months and that has involved either
medical attention or restricted activity. Because of the
procedures used to estimate incidence, the acute contitions
included in this report are the conditions that had their
onset during the 2 weeks prior to the interview week and
that involved either medical attention or restricted
activity during that 2 week period. However, certain
conditions are always classified as chronic regardless of
onset (see Note 8).
A condition is considered chronic if (I) the condition
is described by the respondent as having been first noticed
more than 3 months before the week of the interview or (2)
it is one of the conditions listed in note 8 that are always
considered chron ic regardless of the date of onset.
Impairments are chronic or permanent defects, usually
static in nature, resulting from disease, injury, or
congenital malformation. They represent decrease or loss of
ability to perform various functions, particulary those of
the musculoskeletal system and the sense organs.
TERNS RELATING TO DISABILITY
Disability is the general term used to describe any
temporary or long-term reduction of a person’s activity as
a result of an acute or chronic condition.
Short-term disability days are classified according to
whether they are days of restricted activity, bed days,
hospital days, work-loss days. or school-loss days. All
hospital days are, by definition, days of bed disability;
all days of bed disability are, by definition, days of
restricted activity. The converse form of these statements
is, of course, not true. Days lost from work and days lost
from school are special terms that apply to the working and
school-age populations only, but these too are days of
restricted activity. Hence, “days of restricted activity”
is the most inclusive term used to describe disability days.
A day of restricted activity is one on which a person
cuts down on his usual activities for the whole of that day
because an illness or an injury. The term “usual
activities” for any day means the things that the person
would ordinarily do on that day. For children under school
age. usual activities depend on whatever the usual pattern
is for the child’s day, which will in turn be affected by
the age of the chiid. weather conditions, and so forth. For
retired or elderly persons , usual activities might consist
of almost no activity. but cutting down on even a small
amount for as much as a day would constitute restricted
activity. On Sundays or holidays, usual activities are the
things the person usually does on such days - going to
church, playing golf, visiting friends or relatives, or
_I ---- _-.__-... __-..l -.-.
_^_ ..-_.. .._..-“,_ --
staying at home and listening to the radio, reading,
watching television, and so forth. Persons who have
permanently reduced their usual activities because of a
chronic condition might not report any restricted-activity
days during a 2 week period. Therefore, absence of
restricted-activity days does NOT imply normal health.
Restricted activity does not imply complete inactivity.
but it does imply only the minimum of usual activities. A
special nap for an hour after lunch does not constitute
cutting down on usual activities, nor does the elimination
of a heavy chore such as cleaning ashes out of the furnace
or hanging out the wash. If a farmer or housewife carries
on only the minimum of the day’s chores, however, this is a
day of restricted activity.
A day spent in bed or a day home from work or school
because of illness or injury is, of course, a
A day of bed disability is one on which a person stays
in bed for all or most of the day because of a specific
illness or injury. All or most of the day is defined as
more than half of the daylight hours. Al 1 hospital days for
inpatients are considered to be days of bed disability even
if the patient was not actually in bed at the hospital.
A day lost from work is a day on which a person did not
work at his job or business for at least half of his normal
workday because of a specific illness or injury. The number
of days lost from work is determined only for persons 17
year5 of age and over who reported that at any time during
the 2 week period covered by the interview they either
worked at or had a job or business (see “currently
employed persons” under DEMOGRAPHIC TERMS).
A day lost from school is a normal school day on which a
child did not attend school because of a specific illness or
injury. The number of days lost from school is determined
only for children 6-16 years of age.
TERNS RELATING TO PERSONS INJURED
..I’. PERSON INJURED
A person injured is one who has sustained one or more
injuries in an accident or in some type of nonaccidental
violence. Each time a person is involved in an accident or
in nonaccidental violence causing injury that results in at
least 1 full day of restricted activity or medical
attention, he is included in the statistics as a separate
person injured: hence, one person may be included more than
PLACE OF ACCIDENT
Persons injured are classified according to the type of
place where the injury occurred.
1. HOHE - The place of accident is considered as “home” if
the injury occurred either inside or outside the home but
within the property boundaries. “Home” includes not only
the person’s own home but also any other home (vacant or
occupied) in which he may have been when he was injured.
“Home” includes any structure that has the primary function
of a dwelling unit and includes the structure and premises
of such places as apartment houses and house trailers.
inside the house:
Includes any room, attic, cellar, porch, or steps leading
to an entrance of the house. However, inside the garage is
not considered as inside the house.
Outside the house:
Includes the yard, driveway, garage, patio, gardens, or
walks. On a farm, only the premises adjacent to the house
are considered as part of the home. Injuries due to
accidents occurring on cultivated land, in barns, or other
farm buildings would not be considered home injuries.
2. STREET OR HIGHWAY - “Street or highway” means the entire
area between property lines of which any part is open for
the use of the public as a matter or right or custom. It
includes the roadway, shoulder, curb, or public sidewalk;
excluded are private driveways, lanes, or sidewalks.
3. FARM - “Farm” as a place of accident refers to accidents
occurring in farm buildings or on cultivated land but does
not include accidents occurring in the farm home or
premises. A ranch is considered a farm.
4. INDUSTRIAL PLACE - “Industrial place” is the term applied
to accidents occurring in an industrial place or on the
premises. Included are such places as factories, railway
yards, warehouses, workshops, logging camps, shipping piers,
oil fields, shipyards, sand and gravel pits, canneries, and
auto repair garages. Construction projects such as houses,
buildings, bridges, and new roads are included in this
_._-, I_- _.” _ -. .- -‘-~--.-
category. Buildings undergoing remodeling, with the
exception of private homes, are classified as industrial
places or premises.
5. SCHOOL - “School” as a place of accident includes all
accidents occurring in school buildings or on the premises.
This classification includes elementary schools, high
schools, co1 leges, and trade and business schools.
6. PLACE OF RECREATION - “Place of recreation” is used to
describe accidents occurring in places organized for sports
and recreation other than recreational areas located at a
place already defined as “home,” “industrial place,” or
“school.” Bowling alley, amusement park, football stadium,
and dance hall are examples of “place of recreation.” In
“place of act i dent” classification of injuries the place is
significant rather than the activity in which the person was
engaged in at the time of accident. Hence, an injury
sustained by a person at a dance hall while he was at work
is classified as a “place of recreation” injury. Likewise,
an injury occurring while a person was engaged in a sport in
an industrial place is classified as an “industrial place”
7. OTHER - Accidents that cannot be classified in any of the
above groups or for which the place in unknown are
classified as “other.” Included in the classification are
such places as restaurants, churches, business and
professional offices, and open or wooded country.
TERMS RELATING TO HOSPITALIZATION
For this survey a hospital is defined as any institution
meeting one of the following criteria: (1) named in the
listing of hospitals in the current Guide Issue of
Hospitals, the Journal of the American Hospital Association,
(2) named in the listing of hospitals in the Directories of
the American Osteopathic Hospital Association, or (3) named
in the annual inventory of non-Federal hospitals submitted
by the States to the Health Care Facilities Service, Health
Services and Hental Health Administration, in conjunction
with the Hill-Burton program.
A short-stay hospital is one in which the type of service
provided by the hospital is general: maternity: eye, ear,
nose and throat; children’s; or osteopathic: or it may be
the hospital department of an institution.
Hospital ownership is a classification of hospitals
according to the type of organization that controls and
operates the hospital. The category to which an individual
hospital is assigned and the definition of these categories
follows the usage of the American Hospital Association.
A hospital day is a day on which a person is confined to a
hospital. The day is counted as a hospital day only if the
patient stays overnight. Thus a patient who enters the
hospital on honday afternoon and leaves Wednesday noon is
considered to have had 2 hospital days.
A hospital episode is any continuous period of stay of 1
night or more in a hospital as an inpatient except the
period of stay of a well newborn infant. A hospital episode
is recorded for a family member whenever any part of his
hospital stay is included in the 12 month period prior to
the interview week.
LENGTH OF HOSPITAL STAY
The length of hospital stay is the duration in days,
exclusive of the day of discharge, of a hospital discharge.
TERHS RELATING TO DENTAL VISITS
A dental visit is defined as any visit to a dentist’s office
for treatment or advice, including services by a technician
or hygienist acting under a dentist’s supervision.
INTERVAL SINCE LAST DENTAL VISIT
The interval since the last dental visit is the length of
time prior to the week of interview since a dentist or
dental hygienist was last visited for treatment or advice of
TERMS RELATING TO PHYSICIAN VISIT
A physician visit is defined as consultation with a
physician, in person or by telephone, for examination,
diagnosis, treatment, or advice. The visit is considered to
be a physician visit if the service is provided directly by
the physician or by a nurse or other person acting under a
physician’s supervision. For the purpose of this
definition, “physician” includes doctors of medicine and
osteopathic physicians. The term B’doctorl’ is used in the
interview rather than “physician I1 because of popular usage.
However, the concept toward which all instruction are
directed is that which is described here.
Physician visits for services provided on a mass basis
are not included in the tabulations. A service received on
a mass basis is defined as any service involving only a
single test (e.g., test for diabetes) or a single procedure
(e.g.. smallpox vaccination) when this single service was
administered identically to all persons who were at the
place for this purpose.
Physician visits to hospital inpatients are not
If a physician is called to a house to see more than one
person, the call is considered a separate physician visit
for each person about whom the physician was consulted.
A physician visit is associated with the person about
whom the advice was sought, even if that person did not
actually see or consult the physician. For example, if a
mother consults a physician about one of her children, the
physician visit is ascribed to the child.
INTERVAL SINCE LAST PHYSICIAN VISIT
The interval since the last physician visit is the
length of time prior to the week of interview since a
physician was last consulted in person or by telephone for
treatment or advice of any type whatever. A physician visit
to a hospital inpatient may be counted as the last time a
physician was seen.
FAHILY AND RELATED TERMS
Refers to a group of two persons or more related by
blood, marriage, or adoption who are living together in the
same household. Although the usual household contains only
the primary family, a household can contain secondary
families as well as individuals unrelated to the family. A
lodger and his family who are not related to the head of the
household or a resident employee and his wife living in are
considered a secondary family and not part of the primary
family. However, if the son of the head of the household
and the son’s wife and children are members of the
household, this subfamily is treated as part of the primary
HEAD OF FAHILY
Is usually the person regarded as the “head” by the
members of the group. Married women are never classified as
heads if their husbands are living with them at the time of
the survey except when the husband is a member of the armed
forces. Only one person in each family can be designated as
the head. Therefore the number of heads of families is
equal to the number of families.
OTHER FAAILY HEMBERS
Are all persons who are related to the head of the
family by blood, marriage, or adoption. The category “ch i 1d
under 17." used as a classifier of husband-wife families,
refers to a child of these parents and includes an adopted
child, a foster child, or a ward but excludes a grandchild.
The age recorded for each person is the age at last
The population is divided into two color groups, “white”
and “al 1 other.” “Al 1 other” includes Negro, American
Indian, Chinese, Japanese, and any other race. Hex i can
persons are included with “white” unless definitely known to
be Indian or of another race.
INCOHE OF FAMILY OR OF UNRELATED INDIV I DUALS
Each member of a family is classif ied according to the
total income of the fami ly of which he is a member. Within
the household all persons related to each other by blood,
marriage, or adoption constitute a family. Unrelated
individuals are classified according to their own income.
The income recorded is the total of all income received
by members of the family (or by an unrelated individual) in
the 12 month period preceding the week of interview. I ncome
from all sources is included, e.g., wages, salaries, rents
from property, pensions, and help from relatives.
The categories of education status show the years of
school completed. Only years completed in regular schools,
where persons are given a formal education, are included. A
“regular” school is one which advances a person toward an
elementary or high school diploma or a college, university,
or professional school degree. Thus education in
vocational, trade, or business schools outside the regular
school system is not counted in determining the highest
grade of school completed.
Harital status is recorded only for persons 17 years of
age or older. The mari tal status categories in this report
are as follows.
1. UNDER 17 includes al 1 persons aged 0-16 regardless of
their marital status.
2. HARRIED includes all married persons not separated from
their spouses. Persons with common-law marriage are
considered as married.
3. NEVER MARRIED includes persons who were never married and
persons whose only marriage was annulled.
4. SEPARATED includes married persons who have a legal
separation or who have parted because of other reasons.
This does not include persons separated from their spouses
bacause of the circumstances of their employment or service
in the armed forces: these persons are considered married.
5. WIDOWED and DIVORCED include. respectively, all persons
who said they were either widowed or legally divorced.
1. LIVING ALONE - Living alone is defined as living in a
2. LIVING WITH NONRELATIVES - Living with nonrelatives is
defined as living in a household with another person or
persons none of whom are related to the person by blood
marriage, or adoption.
3. LIVING WITH SPOUSE - This category includes married
persons who are living in a household with another person or
persons one or more of whom are related to them by blood,
marriage, or adoption. Persons with common-law marriages
are considered to be married. For purposes of this of this
category, “married” excludes widowed, divorced, or -
separated. Persons whose only marriage was annulled are
counted as “never marr i ed .‘I
4. LIVING WITH RELATIVES - OTHER - This category includes
children living with parents or relatives: it also includes
persons who are widowed, divorced, separated, or never
married who are living in a household with another person or
persons one or more of whom are related to them by blood,
marriage, or adoption. Persons whose only marriage was
annulled are counted as “never married.” ‘!Separated” refers
to married persons who have a legal separation or who have
parted because of marital discord.
For the purpose of classifying the population by
geographic area, the States are grouped into four regions.
These regions, which correspond to those used by the U.S.
Bureau of the Census, are shown below.
REGION STATES INCLUDED
Northeast ..... Haine, New Hampshire, Vermont,
Massachusetts, Rhode Island, Connecticut,
New York, New Jersey, Pennsylvania
North Central . . Michigan, Ohio, Indiana, Illinois,
Wisconsin, Minnesota, Iowa, Hissouri.
North Dakota, South Dakota, Kansas,
South . . . . . . . . . . Delaware, Maryland.
District of CoIumbia, Virginia,
West Virginia, North Carolina,
South Carolina, Georgia, Florida,
Kentucky, Texas, Tennessee, Alabama,
Mississippi, Arkansas, Louisana,
West . . . . . . . . . . . Montana. Idaho, Wyoming, Colorado,
New Aexico, Arizona, Utah, Nevada,
Washington, Alaska, Oregon, California.
PLACE OF RESIDENCE
The place of residence of a member of the civilian,
noninstitutionalized population is clasified as inside a
standard metropo litan statistical area (SMSA) or outs ide an
SHSA either farm or nonfarm.
1. STANDARD HETROPOLITAN STATISTICAL AREAS - The definitions
and titles of SMSA’s are established by the U.S. Office of
Hanagement and Budget with the advice of the Federal
Committee on Standard Metropolitan Statistical Areas. There
were 212 SMSA’s defined for the 1960 decennial census. The
definition of an individual SASA involves two
considerations: first, a city or cities of specified
population which constitute the central city and identify
the county in which it is located as the central county:
second, economic and social relationships with contiguous
counties (except in New England) which are metropolitan in
character so that the periphery of the specific metropolitan
area may be determined. SMSA’s are not limited by State
boundaries. In New England S/ISA’s consist of towns and
cities, rather than counties. The metropolitan population
in this report is based on SHSA’s as defined in the 1960
census and does not include any subsequent additions or
2. CENTRAL CITIES - Each SRSA must include at least one
central city. The complete title of an SHSA identifies the
central city or cities. If only one central city is
designated, then it must have 50,000 inhabitants or more.
The area title may include, in addition to the largest city,
up to two city names on the basis and in the order of the
following criteria: (1) the additional city has at least
250.000 inhabitants or (2) the additional city has a
population of one-third or more of that of the largest city
and a minimum population of 25.000. An exception occurs
where two cities have contiguous boundaries and constitute,
for economic and social purposes, a single community of at
least 50,000 the smaller of which must have a population of
at least 15,000.
3. FARH AND NONFARM RESIDENCE - The population residing
outside SMSA’s is subdivided into the farm population, which
comprises all non-ShSA residents living on farms, and the
nonfarm population, which comprises the remaining outside
SHSA population. The farm population includes persons
living on places of 10 acres or more from which sales of
farm products amounted to $50 or more during the previous 12
months or on places of less than 10 acres from which sales
of farm products amounted to $250 or more during the
preceding 12 months. Other persons living outside a SfiSA
were classified as nonfarm if their household paid rent for
the house but their rent did not include any land used for
Sales of farm products refer to the gross receipts from
the sale of field crops, vegetables. fruits, nuts, livestock
and livestock products (milk, wool, etc.), poultry and
poultry products, and nursery and forest products produced
on the place and sold at any time during the preceding 12
CLASS OF WORKER
Persons in the labor force are classified according to
class of worker as follow:
1. PRIVATELY PAID WORKERS are persons working for a private
employer for wages, salary, or commissions. This includes
compensation by tips; piece rates or pay in kind; and wages
or salary from settlement houses, churches, unions, and
other nonprofit organizations.
2. FEDERAL GOVERNHENT WORKERS are persons who work for any
branch of the Federal Government including employees of
Government owned bus lines and utilities, civilian employees
of the armed forces, and persons elected to Federal offices.
3. OTHER GOVERNMENT WORKERS are persons who work for any
branch of government other than the Federal Government,
e.g., state, city, or county. Included in this group are
civilian employees of the National Guard, persons elected to
paid offices, employees of international organizations such
as the United Nations, and employees of foreign governments.
4. SELF-EHPLOYEED WORKERS are persons working for profit or
fees in their own business, farm, shop, or office. “Own
bus i ness” includes persons who have their own tools or
equipment and provide services on a contract, subcontract,
or job basis. Officers of corporations are not ciassified
as owning their own business, even though they do own all or
part of the corporation stock: such persons are considered
as “private paid.” A person who operates a farm for
himself, regardless of whether he owns or rents the land, is
_.__II --.- “_” _--
VARIABLE DESCRIPTION LIST
1. Random recode of PSU
2. Census week code
43: Household number
2: Processing week code
Processing quarter code
i: Processing year
9. Type of PSU
11. Tabulation area
12. Geographic identification
13. SASA - non-SASA residence
14. Type of living quarters
15 Interviewer number
16. Record of cal lo
18. Interview observed
19. Day of week interview completed
20. Length of interview
21. Time of day of interview
22. Completed interview
23. Noninterview reason - Type A
24. Special place name
25. Number of unrelated individuals
26. Number of persons in the household
27. Size of family - Primary family
28. Size of family - Secondary family-l
29. Size of family - Secondary family-2
Size of family - Secondary family-3
::: Size of family - Secondary family-4
Size of famil Y - Secondary family-5
;:: Size of famil y - Secondary family-6
34. Size of famil Y - Secondary family-7
Size of famil Y - Secondary family-8
;2: Size of famil y - Secondary family-3
Head present - Primary family
:;: Head present - Secondary family-l
Head present - Secondary family-2
1:: Head present - Secondary family-3
41. Head present - Secondary family-4
42. Head present - Secondary family-5
Head present - Secondary family-6
2: Head present - Secondary family-7
45. Head present - Secondary family-8
46. Head present - Secondary family-8
Date of completion of interview - month
Date of completion of interview - day
Total number of bedrooms
Condition list assigned
ICPSR data collection number
ICPSR edition number
ICPSR part number
ICPSR sequential case identification number
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