Value | Category | Cases | |
---|---|---|---|
-9 | NIU (not in universe) | 149 |
5.3%
|
1 | yes, effective at preventing pregnancy | 1871 |
66.3%
|
2 | no, not effective at preventing pregnancy | 752 |
26.6%
|
98 | don't know | 50 |
1.8%
|
9999995 | missing:impute | 0 |
0%
|