Name
perstart
Label
At what age did your menstrual periods begin?
Domain
perage
- -2: Don't know
- 1: 9 years old or younger
- 2: 10 years old
- 3: 11 years old
- 4: 12 years old
- 5: 13 years old
- 6: 14 years old
- 7: 15 years old
- 8: 16 years old
- 9: 17 years old or older
Type
choices