S4Q3M LAST MENSTRUAL PERIOD START M-W4

Variable Description

Name
H4GH3M
Label
S4Q3M LAST MENSTRUAL PERIOD START M-W4
Dataset
wave4

Summary Statistics for 'H4GH3M'

Value Valid Label Frequency % of Valid % of All
. Missing missing 19
0.12%
1 Valid January 875
10.67%
5.57%
2 Valid February 1,271
15.49%
8.10%
3 Valid March 1,235
15.05%
7.87%
4 Valid April 1,060
12.92%
6.75%
5 Valid May 848
10.34%
5.40%
6 Valid June 639
7.79%
4.07%
7 Valid July 510
6.22%
3.25%
8 Valid August 464
5.66%
2.96%
9 Valid September 409
4.99%
2.60%
10 Valid October 314
3.83%
2.00%
11 Valid November 306
3.73%
1.95%
12 Valid December 273
3.33%
1.74%
96 Missing refused 8
0.05%
97 Missing legitimate skip 7,349
46.81%
98 Missing don't know 121
0.77%
Total Responses Valid Invalid Min Max
15701 8204 7497 1 12

Representation

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

Source Questions

H4GH3M

Lineage

  • Wave IV In-Home Interview - H4GH3M
    S4Q3M LAST MENSTRUAL PERIOD START M-W4
    • H4GH3M
      3M. What is the date when your last menstrual period began? [month]

Concordance

Add Health
Wave I Wave II Wave IV
Wave I In-Home Interview Wave II In-Home Interview Wave IV In-Home Interview
Wave I In-Home Interview Data Wave II In-Home Interview Wave IV In-Home Interview
H1FP5M H2FP5M H4GH3M
January
2.01%
1.65%
10.67%
February
1.48%
2.09%
15.49%
March
2.18%
5.91%
15.05%
April
11.00%
24.79%
12.92%
May
23.92%
31.87%
10.34%
June
21.45%
19.70%
7.79%
July
16.62%
7.13%
6.22%
August
11.18%
2.60%
5.66%
September
5.32%
0.92%
4.99%
October
2.24%
0.86%
3.83%
November
1.20%
1.04%
3.73%
December
1.40%
1.43%
3.33%
Add Health
Wave I Wave II Wave IV
Wave I In-Home Interview Wave II In-Home Interview Wave IV In-Home Interview
Wave I In-Home Interview Data Wave II In-Home Interview Wave IV In-Home Interview
H1FP5M H2FP5M H4GH3M
January
0.79%
0.68%
5.57%
February
0.58%
0.86%
8.10%
March
0.86%
2.44%
7.87%
April
4.33%
10.21%
6.75%
May
9.41%
13.13%
5.40%
June
8.44%
8.12%
4.07%
July
6.54%
2.94%
3.25%
August
4.40%
1.07%
2.96%
September
2.09%
0.38%
2.60%
October
0.88%
0.35%
2.00%
November
0.47%
0.43%
1.95%
December
0.55%
0.59%
1.74%
Dataset Variable Valid Invalid Min First Quartile Median Third Quartile Max Mean StdDev
Wave I In-Home Interview Data H1FP5M 8,160 12,585 1 12
Wave II In-Home Interview H2FP5M 6,071 8,667 1 12
Wave IV In-Home Interview H4GH3M 8,204 7,497 1 12
Add Health
Wave I Wave II Wave IV
Wave I In-Home Interview Wave II In-Home Interview Wave IV In-Home Interview
Wave I In-Home Interview Data Wave II In-Home Interview Wave IV In-Home Interview
H1FP5M H2FP5M H4GH3M
January 1 1 1
February 2 2 2
March 3 3 3
April 4 4 4
May 5 5 5
June 6 6 6
July 7 7 7
August 8 8 8
September 9 9 9
October 10 10 10
November 11 11 11
December 12 12 12