Sample size | Efficacy (%) | Months of follow up | |||
---|---|---|---|---|---|
1 | 2 | 4 | 6 | ||
2×20 | 70 | 29 | 53 | 66 | 67 |
80 | 42 | 76 | 83 | 90 | |
2×30 | 60 | 34 | 56 | 63 | 57 |
70 | 41 | 73 | 81 | 83 | |
80 | 53 | 88 | 97 | 98 | |
2×40 | 60 | 36 | 66 | 76 | 73 |
70 | 54 | 86 | 93 | 92 | |
80 | 67 | 94 | 99 | 100 | |
2×50 | 60 | 50 | 78 | 83 | 83 |
70 | 64 | 91 | 95 | 97 | |
80 | 78 | 99 | 100 | 100 | |
2×75 | 60 | 64 | 91 | 94 | 93 |
70 | 78 | 98 | 100 | 100 | |
80 | 92 | 100 | 100 | 100 | |
2×100 | 60 | 78 | 97 | 98 | 99 |
70 | 90 | 100 | 100 | 100 | |
80 | 96 | 100 | 100 | 100 |