H1FP4

Question

Name
H1FP4
Question Text
  1. How old were you when you had your very first menstrual period?

Usage

Related Variables

H1FP4 - S32BQ4 MENSTR-AGE FIRST PERIOD-W1

Dataset
wave1

Summary Statistics for 'H1FP4'

Value Valid Label Frequency % of Valid % of All
. Missing missing 1
0.00%
7 Valid seven years old and younger 15
0.16%
0.07%
8 Valid eight years old 38
0.40%
0.18%
9 Valid nine years old 286
3.04%
1.38%
10 Valid ten years old 664
7.07%
3.20%
11 Valid eleven years old 1,864
19.84%
8.99%
12 Valid twelve years old 3,037
32.33%
14.64%
13 Valid thirteen years old 2,310
24.59%
11.14%
14 Valid fourteen years old 848
9.03%
4.09%
15 Valid fifteen years old 259
2.76%
1.25%
16 Valid sixteen years old 63
0.67%
0.30%
17 Valid seventeen years old and older 9
0.10%
0.04%
96 Missing refused 16
0.08%
97 Missing legitimate skip 11,272
54.34%
98 Missing don't know 63
0.30%
Total Responses Valid Invalid Min Max
20745 9393 11352 7 17