Value | Category | Cases | |
---|---|---|---|
-9 | NIU (not in universe) | 20 |
0.7%
|
1 | yes, effective at preventing pregnancy | 1713 |
60.7%
|
2 | no, not effective at preventing pregnancy | 1066 |
37.8%
|
98 | don't know | 23 |
0.8%
|
9999995 | missing:impute | 0 |
0%
|