In what month did you receive the last anti-tetanus injection before your pregnancy with (name)?
Categories
Value
Category
1
2
3
4
5
6
7
8
9
10
11
12
97
Inconsistent
98
Don't know
99
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.