From: Efficacy of a combined contraceptive regimen consisting of condoms and emergency contraception pills
Intervention group | Control group | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Month | No. Sub. Of not use condom | No. Preg. | Cumulative condom use rate | Cumulative of pregnancy gross rate | SE of Cumulative pregnancy gross rate | No. Sub. Of not use condom | No. Preg. | Cumulative condom use rate | Cumulative of pregnancy gross rate | SE of Cumulative pregnancy gross rate |
X | Wx | Ex | P(x) | Qe(x+1) | Sqe(x+1) | Wx | Ex | P(x) | Qe(x+1) | Sqe(x+1) |
0 | 0 | 4 | 0.99505 | 0.00495 | 0.002469 | 0 | 0 | 1.00000 | 0.00000 | 0.000000 |
1 | 0 | 1 | 0.99381 | 0.00619 | 0.002764 | 1 | 1 | 0.99864 | 0.00136 | 0.001358 |
2 | 0 | 2 | 0.99128 | 0.00872 | 0.003283 | 0 | 1 | 0.99727 | 0.00273 | 0.001926 |
3 | 0 | 1 | 0.99000 | 0.01000 | 0.003519 | 0 | 0 | 0.99727 | 0.00273 | 0.001926 |
4 | 0 | 1 | 0.98872 | 0.01128 | 0.003742 | 0 | 2 | 0.99451 | 0.00549 | 0.002738 |
5 | 0 | 2 | 0.98614 | 0.01386 | 0.004153 | 0 | 1 | 0.99313 | 0.00687 | 0.003065 |
6 | 0 | 1 | 0.98484 | 0.01516 | 0.004344 | 0 | 0 | 0.99313 | 0.00687 | 0.003065 |
7 | 0 | 1 | 0.98354 | 0.01646 | 0.004528 | 0 | 1 | 0.99173 | 0.00827 | 0.003365 |
8 | 0 | 0 | 0.98354 | 0.01646 | 0.004528 | 0 | 1 | 0.99033 | 0.00967 | 0.003640 |
9 | 0 | 3 | 0.97963 | 0.02037 | 0.005042 | 0 | 0 | 0.99033 | 0.00967 | 0.003640 |
10 | 0 | 1 | 0.97833 | 0.02167 | 0.005201 | 0 | 0 | 0.99033 | 0.00967 | 0.003640 |
11 | 0 | 0 | 0.97833 | 0.02167 | 0.005201 | 0 | 2 | 0.98752 | 0.01248 | 0.004138 |
12 | 0 | 0 | 0.97833 | 0.02167 | 0.005201 | 0 | 0 | 0.98752 | 0.01248 | 0.004138 |
Total | 0 | 17 | — — | — — | — — | 1 | 9 | — — | — — | — — |