|  | Day 28 failure rates % [CI95%] | |||
---|---|---|---|---|---|
 |  | Method 1a (per protocol) | Method 1b | Method 2a (WHO 2001) | Method 2b |
2004 | Angola, Caala | 0 | 0 | 0 | 0 |
 |  | [0–6.1]* | [0–6.0]* |  |  |
2004 | Congo, Kindamba | 1.2 | 1.1 | 1.1 | 1.0 |
 |  | [0–6.2] | [0–6.0] | [0.2–7.3] | [0.1–6.8] |
2005 | Burkina Faso, Bobo-Dioulasso | 3.2 | 2.8 | 2.8 | 2.8 |
 |  | [0.9–8.1] | [0.8–6.9] | [1.1–7.3] | [1.1–7.3] |
2005 | Uganda, Tororo | 3.3 | 1.6 | 1.8 | 1.8 |
 |  | [0.7–9.3] | [0.3–4.7] | [0.6–5.4] | [0.6–5.7] |