Table 2.

Individual characteristics and group difference of school performance by children self-report

	Student sample
	Overall	Orphans	Affected children	Comparison children	P-value
N(%)	1625	755(46.5)	466(28.7)	404(24.9)
Mean age(sd)	12.85(2.21)	13.16(2.20)	12.36(2.24)	12.83(2.10)	<0.001
Gender
Boy	826(50.8)	53.4	47	50.5
Girl	799(49.2)	46.6	53	49.5
Age group					<0.001
≤11	441(27.3)	22.9	35.1	26.8
12--14	761(47.1)	46	46.2	50.4
≥15	412(25.5)	31.1	18.1	22.8
Current grade					<0.001
≤6	1095(67.8)	57.8	78.2	74.5
≥7	519(32.1)	42.2	21.8	25.5
perceived health					n.s.
Good	987(63.6)	62.7	65.2	63.5
Fair	499(32.2)	32.5	30.2	33.7
Poor	65(4.2)	4.7	4.6	2.8
Academic marks					<0.001
Mostly A's or B's	621(39.5)	34.3	40.5	47.9
Mostly C's	441(28)	29.5	27.6	25.7
Mostly D's or worse	512(32.5)	36.2	31.9	26.4
Educational expectation					n.s.
Middle school	85(5.5)	4.1	7.6	5.7
High school and technology	386(24.9)	25.9	24.7	23.1
College and above	1081(69.7)	70	67.7	71.2
Being a student leader					n.s.
Yes	158(10.2)	10.9	8.9	10.4