Table 1.

Demographic characteristics of sample of girls and boys in grade 10 surveyed in 2018 from Mpumalanga and KwaZulu-Natal, South Africa.

	Mpumalanga				KwaZulu-Natal
	Grade 10 Girls		Grade 10 Boys		Grade 10 Girls		Grade 10 Boys
	I	C	I	C	I	C	I	C
Number observations	1,286	1,088	1,015	992	1,440	1,410	1,081	1,173
Age, mean (range), years	16.0 (11–25)	15.7 (11–25)	16.6 (11–25)	16.4 (11–25)	15.9 (11–25)	16.0 (11–25)	16.6 (11–25)	16.5 (11–25)
Religion, %
Christian	90.6	93.5	80.3	85.8	60.0	59.8	51.1	55.4
Traditional	7.9	5.1	14.1	10.8	31.8	32.9	37.1	30.5
Other	1.5	1.4*	5.6	3.5**	8.3	7.3	11.8	14.0**
Orphanhood, %
Single orphan	32.0	31.8	34.7	30.8	33.3	34.3	34.5	35.1
Double orphan	10.1	7.7	9.4	9.9	11.1	11.0	13.5	10.5
Food security, %
Any days without food in past 3 days	19.3	18.3	22.6	22.1	23.4	25.6	26.0	25.9
No days without food in past 3 days	80.7	81.7	77.4	77.9	76.6	74.4	74.0	74.1
HIV positive person in household, %
Someone is HIV positive	15.7	13.3	8.3	7.1	23.0	24.8	11.9	11.7
No one is HIV positive	56.3	60.4	62.3	63.2	49.4	49.4	59.3	59.4
Don’t know if anyone in household is HIV positive	28.0	26.3	29.4	29.7	27.6	25.9	28.8	28.8
Repeated grade in school, %
Never	55.4	61.0	33.9	41.2	50.8	49.9	32.3	32.3
Once	24.7	26.7	30.5	28.9	30.0	31.5	32.1	31.5
Twice	12.9	7.6	22.2	18.0	10.7	11.0	20.4	22.0
Three or more times	7.0	4.8***	13.4	11.9**	8.5	7.6	15.3	14.1
Caregiver in household, %
Mother or father	80.4	81.2	80.5	78.7	79.4	78.4	78.4	80.0
Grandparent	12.0	12.6	10.3	11.8	13.1	13.0	11.0	11.8
Other	7.6	6.1	9.3	9.5	8.5	8.5	8.1	8.5

I – Intervention group; C – Control group

^*p ≤ 0.05

^**p ≤ 0.01

^**p ≤ 0.001:

for F-test of differences between intervention and control group.