Now I want to ask about each pregnancy (other than your current pregnancy) you may have had in the last year.
Categories
Value
Category
0
Not twins
1
Twins
8
Don't know
9
Missing
Sysmiss
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
Interviewer instructions
One column per birth/event, starting with the most recent birth/event. Enter "1" in each column if twins, enter "0" in the column if not. If twins, you should always have at least two entries.