Literal question
237) When did your last period start?
RECORD THE RESPONSE IN THE UNIT OF TIME USED BY THE RESPONDENT.
RECORD THE DATE, IF GIVEN:
_____
DAYS: ___ 1
WEEKS: ___ 2
MONTHS: ___ 3
YEARS: ___ 4
IN MENOPAUSE/HAD A HYSTERECTOMY 994
BEFORE LAST BIRTH 995
NEVER MENSTRUATED 996