Table 2. Meta-regression analysis for year of study and sample size as a reason of heterogeneity on the knowledge estimates of women infected by HIV in Africa.

Variable	Adjusted model
	ß(95% CI)	SE	P-value
Sample size	0.14(-0.24–0.52)	0.12	0.32
Publication year	-20.14(-61.7–21.4)	13.1	0.22

SE-Standard error, ß-regression coefficient, 95% CI Confidence interval