Table 3.

Interaction between school geographical location and socioeconomic status on odds of current cigarette smoking among adolescents in secondary schools in Enugu State

Variable	Urban			Rural			FSL
	AOR	95% CI	p	AOR	95% CI	p	AOR	95% CI	p
Low SES	1			1.23	0.86–1.77	0.264	1.23	0.86–1.77	0.264
High SES	0.77	0.55–1.06	0.111	1.75	1.14–2.69	0.011	2.28	1.43–3.65	0.001
FSES	0.77	0.55–1.06	0.111	1.42	1.03–1.96	0.033

FSES: For SES within strata of school location. FSL: for school location within strata of SES. Measure of effect modification on multiplicative scale: ratio of ORs (95% CI) = 1.86 (1.17–2.94); p=0.008. AOR: adjusted OR for age, sex, weekly spending money, parents work status, parents living together, exposure to secondhand tobacco smoke, anti-tobacco message or pro-tobacco advertisement, taught about tobacco in school, have smoking parents, friends or classmates, and sale of cigarettes near school.