Table 4.

Stratified analysis for UAI and HAART.

Variables	Number of effect size (n = 13)	OR(95% CI)	p value	Heterogeneity
				p value	I-square
Study setting
Clinics	11	1.09(0.84–1.42)	0.5	0.00	76.68
Non-clinics	2	1.04(0.86–1.24)	0.71	0.09	65.47
Data collection method
Self-reported	7	1.11(0.84–1.47)	0.47	0.00	79.85
Self-reported & medical records	6	1.16(0.91–1.48)	0.22	0.02	62.596
Recall period
Less than 6 months	6	0.82(0.58–1.15)	0.244	0.03	58.19
More than 6 months(include 6 months)	7	1.32(1.01–1.74)	0.047	0.00	91.729
Sero-status of participants
Positive only	10	0.95(0.79–1.15)	0.61	0.02	55.24
Negative with(out) positive	3	1.60(1.12–2.12)	0.001	0.01	77.96
Median age
Less than 35	4	1.45(1.16–1.82)	0.001	0.00	75.22
More than 35 (include 35)	9	0.90(0.71–1.13)	0.35	0.03	53.39
Sample size
Less than 300	3	1.39(0.28–6.96)	0.69	0.00	86.63
More than 300 (include 300)	10	1.09(0.90–1.33)	0.37	0.00	87.05