Table 3.

Difference between study arms (school versus community arm) in prevalence and infection intensity reduction.

	Adjusted for age and sex
	Na	Point estimateb	95% CI	p value
All study schools included
Hookworm infection	15,011	0.93	0.70–1.24	0.636
N. americanus infection intensity (EPG)	15,011	0.36	0.17–0.73	0.005
Moderate-to-heavy N. americanus infection	15,011	0.30	0.14–0.62	0.001
Schools excluded if baseline prevalence <5%
Hookworm infection	10,800	0.90	0.65–1.23	0.493
N. americanus infection intensity (EPG)	10,800	0.35	0.17–0.73	0.005
Moderate-to-heavy N. americanus infection	10,800	0.30	0.14–0.63	0.002

Results in bold indicate significance at p < 0.05 level. EPG = eggs per gram of faeces.

^aObservations included in regression models.

^bRelative difference in reduction between trial arms.