Variable Description

Name
H4GH3D
Label
S4Q3D LAST MENSTRUAL PERIOD START D-W4
Dataset

Summary Statistics for 'H4GH3D'

Value Valid Label Frequency % of Valid % of All
. Missing missing 27
0.17%
96 Missing refused 2
0.01%
97 Missing legitimate skip 7,349
46.81%
98 Missing don't know 451
2.87%
Total Responses Valid Invalid Min Max Mean StdDev Variance Skewness Kurtosis
15701 7872 7829 1 31 15.0185467479675 8.71070713401559 75.8764187745901 0.00181012365317553 -1.13711753038718

Representation

Representation Type
Numeric
Type
Double
Variable is a Weight
False
Aggregation Method
Unspecified
Temporal
False
Geographic
False

Source Questions

H4GH3D

Lineage

  • Wave IV In-Home Interview - H4GH3D
    S4Q3D LAST MENSTRUAL PERIOD START D-W4
    • 3D. What is the date when your last menstrual period began? [Day]

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
H1FP5D H2FP5D H4GH3D
1st
5.52%
5.72%
2nd
3.56%
2.96%
3rd
3.45%
3.63%
4th
2.84%
3.08%
5th
4.43%
3.80%
6th
3.02%
3.15%
7th
3.10%
3.20%
8th
2.82%
2.69%
9th
2.88%
2.65%
10th
4.30%
4.35%
11th
2.60%
3.01%
12th
5.21%
5.31%
13th
3.10%
3.18%
14th
3.65%
3.66%
15th
5.35%
5.53%
16th
2.53%
2.62%
17th
3.33%
3.34%
18th
2.86%
2.81%
19th
2.59%
2.64%
20th
4.61%
4.47%
21st
3.27%
3.29%
22nd
2.86%
2.91%
23rd
3.38%
3.56%
24th
2.78%
2.71%
25th
3.79%
3.48%
26th
2.39%
1.95%
27th
2.42%
2.29%
28th
3.05%
3.20%
29th
1.86%
2.00%
30th
1.64%
1.83%
31st
0.82%
0.98%
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
H1FP5D H2FP5D H4GH3D
1st
2.12%
2.27%
2nd
1.36%
1.17%
3rd
1.32%
1.44%
4th
1.09%
1.22%
5th
1.70%
1.51%
6th
1.16%
1.25%
7th
1.19%
1.27%
8th
1.08%
1.07%
9th
1.10%
1.05%
10th
1.65%
1.72%
11th
1.00%
1.19%
12th
2.00%
2.10%
13th
1.19%
1.26%
14th
1.40%
1.45%
15th
2.05%
2.19%
16th
0.97%
1.04%
17th
1.28%
1.32%
18th
1.09%
1.11%
19th
0.99%
1.04%
20th
1.76%
1.77%
21st
1.25%
1.30%
22nd
1.09%
1.15%
23rd
1.30%
1.41%
24th
1.07%
1.07%
25th
1.45%
1.38%
26th
0.92%
0.77%
27th
0.93%
0.91%
28th
1.17%
1.27%
29th
0.71%
0.79%
30th
0.63%
0.73%
31st
0.31%
0.39%
Dataset Variable Valid Invalid Min First Quartile Median Third Quartile Max Mean StdDev
Wave I In-Home Interview Data H1FP5D 7,947 12,798 1 31
Wave II In-Home Interview H2FP5D 5,841 8,897 1 31
Wave IV In-Home Interview H4GH3D 7,872 7,829 1 7 15 22 31 15.0185467479675 8.71070713401559
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
H1FP5D H2FP5D H4GH3D
1st 1 1
2nd 2 2
3rd 3 3
4th 4 4
5th 5 5
6th 6 6
7th 7 7
8th 8 8
9th 9 9
10th 10 10
11th 11 11
12th 12 12
13th 13 13
14th 14 14
15th 15 15
16th 16 16
17th 17 17
18th 18 18
19th 19 19
20th 20 20
21st 21 21
22nd 22 22
23rd 23 23
24th 24 24
25th 25 25
26th 26 26
27th 27 27
28th 28 28
29th 29 29
30th 30 30
31st 31 31