[If Respondent is female:] In what month did you first take birth control pills regularly for at least one monthly cycle?

Conceptual Variable

Name
1175
Label
[If Respondent is female:] In what month did you first take birth control pills regularly for at least one monthly cycle?
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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
H1CO14M H2CO17M
January
10.27%
7.00%
February
9.07%
7.34%
March
10.83%
7.57%
April
13.16%
7.22%
May
10.43%
8.83%
June
9.55%
13.65%
July
7.30%
11.58%
August
7.38%
12.04%
September
6.74%
8.26%
October
4.90%
6.08%
November
5.70%
5.05%
December
4.65%
5.39%
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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
H1CO14M H2CO17M
January
0.62%
0.41%
February
0.54%
0.43%
March
0.65%
0.45%
April
0.79%
0.43%
May
0.63%
0.52%
June
0.57%
0.81%
July
0.44%
0.69%
August
0.44%
0.71%
September
0.40%
0.49%
October
0.29%
0.36%
November
0.34%
0.30%
December
0.28%
0.32%
Dataset Variable Valid Invalid Min First Quartile Median Third Quartile Max Mean StdDev
Wave I In-Home Interview Data H1CO14M 1,246 19,499 1 12
Wave II In-Home Interview H2CO17M 872 13,866 1 12
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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
H1CO14M H2CO17M
January 1 1
February 2 2
March 3 3
April 4 4
May 5 5
June 6 6
July 7 7
August 8 8
September 9 9
October 10 10
November 11 11
December 12 12