Table 5.

Odds of completing the phone follow-up survey by background characteristics: multivariable logistic regression analyses among the 2 study arms. Italics indicates P<.05.

Characteristics		Hybrid interactive voice response completers versus noncompleters (n=882), adjusted odds ratio (95% CI)	Computer-assisted telephone interview completers versus noncompleters (n=884), adjusted odds ratio (95% CI)
Age group (years)
	15-19	Reference	Reference
	20-29	1.4 (0.8-2.3)	2.3 (1.5-3.4)
	30-39	2.1 (1.2-3.8)	2.7 (1.8-4.2)
	40-49	2.1 (1.1-4.0)	3.8 (2.3-6.4)
Residential area
	Rural	Reference	Reference
	Urban	2.0 (1.1-3.6)	1.7 (1.1-2.5)
Highest school attended
	No education	Reference	Reference
	Primary	1.5 (0.9-2.4)	1.3 (0.9-1.9)
	Secondary or more	2.5 (1.6-3.9)	1.4 (1.1-2.0)
Household wealth (tertile)
	Lowest (reference all other groups)	0.8 (0.4-1.8)	0.7 (0.4-1.2)
	Highest (reference all other groups)	1.3 (0.7-2.5)	1.1 (0.7-1.7)