18a. Do you have menstrual periods?
1[] Yes (Item Q3)
2[] No (18b)
3[] Never had periods (18c)
7[] Refused (Item Q3)
b. Did they stop due to surgery, such as a hysterectomy?
1[] Yes (Item Q3)
2[] No (Item Q3)
3[] Never had periods (18c)
c. Was this due to surgery, such as a hysterectomy?
1[] Yes
2[] No