Table 4.

Odds Ratios (95% CI) from Logistic Regression Models Predicting Correct Responses to HIV Knowledge Survey Questions – Education*Pamphlet interaction added to the model

	Question 1		Question 2
	OR (95% CI)	P- value	OR (95% CI)	P- value
Male vs. Female	1.03 (.92-1.25)	.613	.85 (.71-1.00)	.053
Age in years		.018		.944
25-35 vs. <25	1.16 (1.01-1.33)		1.02 (.82-1.26)
35-45 vs. <25	1.05 (.90-1.22)		1.10 (.86-1.41)
45-55 vs. <25	.87 (.72-1.04)		1.02 (.77-1.37)
55-65 vs. <25	1.07 (.80-1.42)		1.08 (.70-1.68)
Pamphlet vs. No Pamphlet at each Education Level		.004		.345/.115†
Less than 8 years of formal education	1.18 (.86-1.63)		1.23 (.82-1.85)
Complete 8 yrs of formal education	1.61 (1.19-2.18)		1.20 (.77-1.86)
Complete 11 yrs of formal education	2.12 (1.84-2.43)		1.72 (1.37-2.15)
Complete university	2.18 (1.73-2.76)		1.59 (1.05-2.40)
Education*		< .001		< .001
< 8 yrs vs. 11 yrs	1.13 (.88-1.46)		.58 (.42-.81)
8 yrs vs 11 yrs	.88 (.69-1.12)		.87 (.61-1.24)
university vs. 11 yrs	1.46 (1.21-1.76)		1.43 (1.06-1.95)

^†p = .35 tested the hypothesis of no interaction between pamphlet and education for Question 2; p = .11 tested the hypothesis that the pamphlet by education interaction for Question 2 is the same as that for Question 1. Since there is no statistical evidence against the pamphlet by interaction for the Question 2, and that there is statistical evidence for the interaction for Question 1, we have presented the interaction for both questions.