Value | Category | Cases | |
---|---|---|---|
-9 | NIU (not in universe) | 104 |
4.5%
|
1 | yes, effective at preventing pregnancy | 2018 |
87.4%
|
2 | no, not effective at preventing pregnancy | 176 |
7.6%
|
98 | don't know | 11 |
0.5%
|
9999995 | missing:impute | 0 |
0%
|
Sysmiss | 474 |