Table 3.

Multivariate analysis of factors of pertussis, Mekdela district, South Wollo zone, Amhara, Ethiopia

Variables	Case N = 50	Control N = 100	AOR (95% CI)	P value
Parent perception about root cause of pertussis
Infected person in the family
Yes	21	11	5.86 (2.5–13.6)	<0.001
No	29	89
Became sick previously
Yes	1	19	0.053 (0.006–0.46)	0.008
No	49	81
Full dose
Yes	5	27	0.256 (0.08–0.82)	0.021
No	45	73