Table 5.

Illness reported among students during bimonthly active surveillance by caregivers, Nyando Integrated Child Health and Education (NICHE) safe water and hygiene program, Nyando Division, Kenya, 2007–2009^*

	Year 1 (17 visits maximum per household)			Year 2 (19 visits maximum per household)
	Intervention (N = 21 schools/5071 students)	Comparison (N = 22 schools/5428 students)	EDM (90% CI)	Intervention (N = 21 schools/4996 students)	Comparison (N = 22 schools/5601 students)	EDM (90% CI)
Any illness (diarrhea, cough/difficulty breathing, rhinorrhea/coryza, or fever)	5 (4–7)	7 (6–9)	−3 (−4–1)	3 (2–3)	2 (1–3)	1 (−1–1)
Diarrhea	0 (0–0.3)	0.3 (0–0.6)	0 (0–0)	0 (0–0)	0 (0–0)	0 (0–0)
Acute respiratory illness (fever and cough)	2 (1–4)	3 (3–6)	−2 (−3–1)	0.8 (0–1.5)	0.7 (0.3–1.5)	1 (−1–1)

^*Reported are median percentages, with the 25–75th percentiles in parentheses, and estimated differences in medians (EDM) with 90% confidence intervals (CI) in parentheses. Significant (where the 90% CI does not cross zero) differences are bolded.