Knowledge questions	Level of education
	Primary	Secondary		Superior	Franco-Arabic school	Illiterate	Total	p-value
	Primary	First cycle	Second cycle	Superior	Franco-Arabic school	Illiterate	Total	p-value
Infection Risk Factors
Unprotected sex with a person	24.5	42.1	72.0	73.3	0.0	11.0	35.5	0.000^*
Use of contaminatedneedles	30.2	42.1	80.0	73.3	40.0	16.4	39.7	0.000^*
Contact (eyes, wounds) with the blood of a person who has hepatitis B	30.2	30.3	56.0	43.3	0.0	13.7	29.0	0.000^*
From infected mother to her child during pregnancy	54.7	55.3	88.0	93.3	40.0	34.2	56.5	0.000^*
A blood transfusion with contaminated blood	37.7	42.1	84.0	83.3	20.0	19.2	43.1	0.000^*
Use of drugs intravenously with dirty needles	32.1	42.1	76.0	76.7	20.0	12.3	38.5	0.000^*
Excision with used equipment	35.8	42.1	80.0	76.7	20.0	16.4	40.8	0.000^*
Sharing of blades/razors with an infected person	34.0	47.4	76.0	80.0	20.0	19.2	42.7	0.000^*
Toothbrushes sharing especially in the presence of minor bleeding	32.1	43.4	68.0	76.7	20.0	16.4	39.3	0.000^*
Practice of ritual scarification or therapeutic with the same blade for several people	37.7	43.4	80.0	80.0	20.0	17.8	42.4	0.000^*
Manicure/pedicure with the same non-disinfected equipment	34.0	38.2	76.0	80.0	20.0	16.4	39.3	0.000^*
Prevention methods
Vaccination	28.3	36.8	68.0	80.0	0.0	8.2	34.4	0.000^*
Safe sex	30.2	31.6	80.0	80.0	0.0	16.4	36.6	0.000^*
Screening blood donors	30.2	30.3	80.0	80.0	0.0	13.7	35.5	0.000^*
Use of disposable equipment	30.2	39.5	76.0	76.7	0.0	16.4	38.2	0.000^*
Treatment
Is there any treatment?	49.1	52.6	60.0	60.0	20.0	23.3	44.7	0.000^*
Mortality
Is the hepatitis B a deadly disease?	50.9	50.0	76.0	76.7	20.0	24.7	48.1	0.000^*