Table 3.

Multivariable quasi-Poisson regression estimates

Variable	P-value	Estimate (95% CI)
Piped or trucked water	0.002	1.82 (1.34–2.49)
Yes		Ref
No
Tank under sunlight	0.047	0.61 (0.38–0.99)
Yes		Ref
No
Time since treatment (hours)	< 0.0001	4.11 (2.48–6.79)
≤ 24		2.54 (1.43–4.50)
25–72		1.46 (0.73–2.94)
72+		Ref
No treatment