Table 2. Protective efficacy against incident episodes of malaria stratified by age.
Treatment arm |
Randomization to 24 months of age |
Randomization to 16 months of age |
17 to 24 months of age |
||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Number of cases |
PYAR1 | Incidenc e per PYAR1 |
PE2 (95% CI) | p value | Incidence per PYAR1 |
PE2 (95% CI) | p value | Incidence per PYAR1 |
PE2 (95% CI) | p value | |
Control | 240 | 38.2 | 6.28 | reference | - | 5.42 | reference | - | 7.04 | reference | - |
Monthly SP | 182 | 40.4 | 4.50 | 9% (−35 to 38) | 0.65 | 3.72 | 2% (−64 to 42) | 0.93 | 5.22 | 14% (−29 to 43) | 0.47 |
Daily TS | 116 | 40.6 | 2.86 | 49% (23 to 66) | 0.001 | 1.70 | 63% (34 to 79) | 0.001 | 3.79 | 42% (12 to 62) | 0.01 |
Monthly DP | 82 | 44.7 | 1.83 | 69% (53 to 80) | <0.001 | 0.90 | 84% (69 to 92) | <0.001 | 2.67 | 61% (39 to 75) | <0.001 |
PYAR = person-year at risk
PE = protective efficacy adjusted for age at randomization and incidence of malaria prior to randomization