Table 2.

Association Between Cotrimoxazole Preventive Therapy and Both Clinical Malaria and Asymptomatic Infection, by Infant Age

Type of Infection	No. of Events	RR (95% CI)
Clinical or asymptomatic infection
Daily infant CPT vs no infant CPT
6–12 wk	30	0.38 (.19–.77)
13–24 wk	80	0.53 (.34–.80)
25–36 wk	98	0.96 (.63–1.48)
Overall: 6–36 wk	208	0.65 (.49–.86)
Clinical malaria only
Daily infant CPT vs no infant CPT
6–12 wk	18	0.33 (.13–.82)
13–24 wk	40	0.85 (.44–1.63)
25–36 wk	94	0.96 (.62–1.49)
Overall: 6–36 wk	152	0.81 (.58–1.15)
Asymptomatic infection only
Daily infant CPT vs no infant CPT
12 wk	12	0.26 (.09–.78)
24 wk	44	0.32 (.19–.55)
36 wk	5	0.14 (.02–1.27)
Overall: 12–36 wk	61	0.30 (.19–.47)

Abbreviations: CI, confidence interval; CPT, cotrimoxazole preventive therapy; RR, risk ratio.