Table 7.

Logistic regression analysis of predictors for high STI knowledge.

Predictor Variable	Categories	Odds Ratio (OR)	95% Confidence Interval (CI)	p-Value
Age	Per-year increase	1.05	1.01–1.09	0.014
Education level	Non-formal Education (reference)	-	-	-
	Elementary school	1.20	0.92–1.58	0.150
	Intermediate school	1.45	1.12–1.89	0.007
	Secondary school	1.70	1.32–2.18	<0.001
	Diploma	1.85	1.44–2.38	<0.001
	Bachelor’s degree	2.10	1.66–2.65	<0.001
	Master’s degree	2.25	1.78–2.85	<0.001
	Ph.D.	2.50	1.96–3.20	<0.001
Residential area	Central (reference)	-	-	-
	Eastern	0.92	0.70–1.20	0.523
	Northern	0.75	0.56–1.01	0.061
	Southern	0.80	0.60–1.06	0.126
	Western	1.05	0.80–1.38	0.700
Marital status	Single (reference)	-	-	-
	Married	1.40	1.10–1.79	0.006
	Divorced	1.30	0.92–1.83	0.135
	Widowed	1.10	0.73–1.65	0.648
Information source	Healthcare providers (reference)	-	-	-
	Educational materials	1.30	1.02–1.66	0.035
	Internet/websites	1.40	1.11–1.76	0.004
	Social media	1.35	1.05–1.74	0.021
	Friends/peers	1.15	0.78–1.68	0.479
	Family members	1.10	0.71–1.70	0.665
STI testing	Never tested (reference)	-	-	-
	Tested	1.55	1.23–1.95	<0.001
Discussing STIs	Never discussed (reference)	-	-	-
	Discussed	1.70	1.35–2.13	<0.001
Protection use	Never used protection (reference)	-	-	-
	Used protection	1.65	1.30–2.10	<0.001
HPV vaccination	Not vaccinated (reference)	-	-	-
	Vaccinated	1.60	1.24–2.06	<0.001