Age

At what age did your menstrual periods begin vs Visit
Visit 5
Total 735
Don't know 2
9 years old or younger 18
10 years old 34
11 years old 68
12 years old 116
13 years old 90
14 years old 33
15 years old 18
16 years old 7
17 years old or older 3
Unknown 346
At what age did your menstrual periods begin vs Participant's age (category)
Visit 5
5-14 yrs old 15-24 yrs old 25-34 yrs old 35-44 years 45-54 years 55-64 years 65-74 years 75-84 years 85 years or older Total
Total 64 112 62 98 148 84 57 31 2 658
Don't know 1 1 - - - - - - - 2
9 years old or younger - 1 2 9 5 1 - - - 18
10 years old 3 7 3 3 5 5 2 - - 28
11 years old 4 12 4 9 15 9 4 2 - 59
12 years old 7 23 10 20 24 10 7 4 - 105
13 years old - 13 8 12 19 11 7 6 - 76
14 years old - 4 2 6 8 6 2 - - 28
15 years old - 2 1 1 6 2 2 3 - 17
16 years old - - - - 3 1 1 1 - 6
17 years old or older - - 1 1 - - - - - 2
Unknown 49 49 31 37 63 39 32 15 2 317
At what age did your menstrual periods begin vs Participant's sex
Visit 5
Female Male Total
Total 406 329 735
Don't know 2 - 2
9 years old or younger 18 - 18
10 years old 34 - 34
11 years old 68 - 68
12 years old 116 - 116
13 years old 90 - 90
14 years old 33 - 33
15 years old 18 - 18
16 years old 7 - 7
17 years old or older 3 - 3
Unknown 17 329 346
At what age did your menstrual periods begin vs Participant's race
Visit 5
White Black More than one race Total
Total 304 409 22 735
Don't know - 2 - 2
9 years old or younger 1 17 - 18
10 years old 12 19 3 34
11 years old 28 36 4 68
12 years old 44 70 2 116
13 years old 45 43 2 90
14 years old 15 18 - 33
15 years old 5 12 1 18
16 years old 4 3 - 7
17 years old or older 3 - - 3
Unknown 147 189 10 346