Table 2.

Effect of handwashing on diarrheal incidence in children under 5 years old as analyzed by multivariable analysis in rural kebeles of Dire Dawa, east Ethiopia, 2019

Features	Crude IRR CI (95%)	Adjusted IRR CI (95%)	p value
Interventional arm	0.59 (0.53–0.65)	0.59 (0.53–0.65)	< 0.001
Non-intervention arm	1	1
Age of the child	1.00 (0.99–1.00)	1.00 (0.99–1.00)	0.991
Sex of the child
Female	0.99 (0.92–1.08)	0.99 (0.92–1.08)	0.947
Male	1	1
History of breastfeeding
Yes	1.02 (0.81–1.27)	1.02 (0.81–1.27)	0.872
No	1	1
Number of household members	1.00 (0.98–1.02)	1.00 (0.98–1.02)	0.807
Refuse disposal facility present
Yes	1.01 (0.91–1.11)	1.01 (0.91–1.12)	0.907
No	1	1
Latrine present
Yes	0.99 (0.91–1.10)	0.99 (0.90–1.09)	0.856
No	1	1
Drinking water source for the household
Improved source	0.99 (0.91–1.08)	0.99 (0.91–1.07)	0.792
Unimproved source	1	1
Water storage container
Narrow necked	0.98 (0.89–1.09)	0.98 (0.88–1.09)	0.717
Wide necked	1	1

IRR incidence rate ratio, CI confidence interval; the statistical test used is GEE