Codes and Frequencies
An 'X' indicates the category is available for that sample
| Code | Label |
88
|
81
|
|---|---|---|---|
| 00 | NIU | X | X |
| 10 | Born when expected or w/in 1 week | · | · |
| 11 | Born when expected | X | X |
| 12 | Born earlier by under 1 week | · | X |
| 13 | Born later by under 1 week | · | X |
| 20 | Born earlier by 1+ weeks | · | · |
| 21 | Born earlier by 1 week | X | X |
| 22 | Born earlier by 2 weeks | X | X |
| 23 | Born earlier by 3 weeks | X | X |
| 24 | Born earlier by 4+ weeks | X | X |
| 30 | Born later by 1 to 4 weeks | · | · |
| 31 | Born later by 1 week | X | X |
| 32 | Born later by 2 weeks | X | X |
| 33 | Born later by 3 weeks | X | X |
| 40 | Born later by 4+ weeks | X | · |
| 41 | Born later by 4 to 5 weeks | · | X |
| 42 | Born later by 6 to 7 weeks | · | X |
| 43 | Born later by 8 to 9 weeks | · | X |
| 44 | Born later by 10 to 12 weeks | · | X |
| 45 | Born later by 13+ weeks | · | X |
| 50 | Born when not expected, amt unknown | · | · |
| 51 | Born earlier, weeks unknown | X | · |
| 52 | Born later, weeks unknown | X | · |
| 97 | Unknown if born early or late | X | X |
| 98 | Unknown amt early or late | · | X |
| Code | Label |
88
|
81
|
| 99 | Other unknown | · | X |
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Description
For sample persons under age 18 in 1988, and sample persons under age 18 whose respondent is their biological parent in 1981, BORNDIFTIM1 indicates if the person was born earlier, later, or about when expected, in number of weeks. This variable reports the timing of birth in a series of pre-specified time intevals. Please see the Codes tab for additional information about possible responses.
This variable is part of the 1981 and 1988 Child Health Supplement. Please use the IPUMS NHIS drop-down menus and search function to find other variables related to this supplement.
The 1981 and 1988 Child Health Supplement collected information about children 17 years of age and younger on a wide range of topics, including: family structure, child care, breastfeeding, development, medications, birth and prenatal events, hospitalizations and surgery, chronic conditions, weight, school, behavior problems, social issues, and sleep habits. All questions were asked of the adult best able to provide accurate information about the child. The preferred respondents for this supplement, in order of priority, are: biological mother, biological father, an adoptive, step, or foster parent, a legal guardian, a primary caretaker, or another adult.
Universe
- 1981: Sample persons under age 18, whose respondent is their biological parent.
- 1988: Sample persons under age 18.
Availability
- 1981, 1988
Survey Text
| 1988 |
| 1981 |
2[] When expected (Check item 13)
3[] Later than expected
9[] DK (Check item 13)
c. About how many weeks (earlier/later) than expected was -- born?
Weeks ____
99[] DK
2[] When expected (6)
3[] Later than expected
9[] DK (6)
b. About how much (earlier/later) than expected was -- born?
Range acceptable
(Number)
2[] Weeks
3[] Months
Weights
- 1981, 1988 : SAMPWEIGHT