S31BQ12Y/13Y PREG1-YEAR-W2

Variable Description

Name
H2FP12Y1
Label
S31BQ12Y/13Y PREG1-YEAR-W2
Dataset
wave2

Summary Statistics for 'H2FP12Y1'

Value Valid Label Frequency % of Valid % of All
91 Valid 1991 and before 6
0.88%
0.04%
92 Valid 1992 14
2.05%
0.09%
93 Valid 1993 41
6.01%
0.28%
94 Valid 1994 135
19.79%
0.92%
95 Valid 1995 331
48.53%
2.25%
96 Valid 1996 154
22.58%
1.04%
996 Missing refused 9
0.06%
997 Missing legitimate skip 14,016
95.10%
998 Missing don't know 31
0.21%
Total Responses Valid Invalid Min Max
14738 682 14056 90 96

Representation

Representation Type
Code List
Selection Style
SelectOne
Measurement Unit
numeric
Measurement Unit
numeric
Aggregation Method
Unspecified
Temporal
False
Geographic
False

Source Questions

H2FP12Y1

Lineage

  • Wave II In-Home Interview - H2FP12Y1
    S31BQ12Y/13Y PREG1-YEAR-W2
    • H2FP12Y1
      12Y1. [If Q11 = 1, ask:] In what [month and] year did your pregnancy begin? [If Q11 >1, ask:] In what [month and] year did your most recent pregnancy begin?

Concordance

Add Health
Wave I Wave II
Wave I In-Home Interview Wave II In-Home Interview
Wave I In-Home Interview Data Wave II In-Home Interview
H1FP9Y H2FP12Y1
1991 and before
2.55%
0.88%
1992
5.76%
2.05%
1993
13.94%
6.01%
1994
43.03%
19.79%
1995
34.72%
48.53%
1996
22.58%
Add Health
Wave I Wave II
Wave I In-Home Interview Wave II In-Home Interview
Wave I In-Home Interview Data Wave II In-Home Interview
H1FP9Y H2FP12Y1
1991 and before
0.09%
0.04%
1992
0.21%
0.09%
1993
0.50%
0.28%
1994
1.55%
0.92%
1995
1.25%
2.25%
1996
1.04%
Dataset Variable Valid Invalid Min First Quartile Median Third Quartile Max Mean StdDev
Wave I In-Home Interview Data H1FP9Y 746 19,999 91 95
Wave II In-Home Interview H2FP12Y1 682 14,056 90 96