TABLE 1.

Demographic characteristics of the study population by clinic site (N = 100).

Covariates	Total (N = 100)	Rural (N = 50)		Urban (N = 50)		p
	N	N	%	N	%
Age (mean)	15.98	16.8	-	15.2	-	0.0002*
Sex
Male	49	23	46	26	52	0.6859†
Female	43	22	44	21	42	-
Unclassified	8	5	10	3	6	-
Population group
Black	97	50	100	47	94	0.1775‡
Mixed race	3	0	0	3	6	-
Primary language
Zulu	97	50	100	3	6	0.2424‡
English	3	0	0	47	94	-
Education
No education	1	1	2	0	0	0.0049‡
Primary	15	6	12	9	18	-
Secondary	50	19	38	31	62	-
Tertiary	17	14	28	3	6	-
Unclassified	17	10	20	7	14	-

^*, p-value reflects results of t-test.

^†, p-value reflects results of Chi-square test.

^‡, p-value reflects results of Fisher’s exact test. More than 25% of cells had expected counts less than 5 making Chi-square test inappropriate.