Table 5.

Logistic Regression Analysis of Risk Factors for Poliovirus Seronegativity

Risk Factor	OR (95% CI)	P Value
All age groups
Type 2 poliovirus
Age		<.001
6–11 mo	Reference
12–23 mo	0.46 (.30–.73)
24–59 mo	0.14 (.09–.24)
Routine OPV doses	0.62 (.55–.70)	<.001
Muslim religion	1.49 (1.07–2.05)	.017
Female sex	1.45 (1.06–1.99)	.022
Moderate/severe stunting	1.43 (1.01–2.01)	.042
Recurrent diarrhea	1.23 (.80–1.89)	.344
Father’s education level	0.84 (.75–.94)	.003
Type 3 poliovirus
Age		<.001
6–11 mo	Reference
12–23 mo	0.34 (.22–.52)
24–59 mo	0.16 (.10–.25)
Routine OPV doses	0.82 (.73–.92)	<.001
Rural setting	1.51 (1.00–2.26)	.049
Muslim religion	1.34 (.97–1.84)	.076
Female sex	1.40 (1.03–1.90)	.032
Moderate/severe stunting	1.76 (1.26–2.46)	.001
Giardia lamblia	1.33 (.92–1.92)	.131
Father’s education level	0.87 (.78–.97)	.015
Age 6–12 mo
Type 2 poliovirus
Muslim religion	2.46 (1.11–5.46)	.027
Stunting	2.69 (1.08–6.68)	.034
Recurrent diarrhea	2.00 (.74–5.41)	.174
Father’s education level	0.82 (.61–1.09)	.164
Total no. of tOPV doses (RI)	0.44 (.32–.61)	<.001
Type 3 poliovirus
Muslim religion	1.43 (.71–2.90)	.318
Father’s education level	0.80 (.63–1.03)	.083
Total no. of mOPV3 doses (SIA)	0.53 (.41–.90)	.004
Total no. of tOPV doses (RI)	0.65 (.35–.82)	.006

Abbreviations: CI, confidence interval; mOPV3, monovalent oral polio vaccine type 3; OPV, oral polio vaccine; OR, odds ratio; RI, routine immunization; SIA, supplementary immunization activity; tOPV, trivalent oral polio vaccine.