Table 3 Meta regression for the included studies to identify source of heterogeneity for the prevalence of anemia among HIV infected adult individuals in Ethiopia from 2005 up to 2017

Year

Publication year

−.8434435

0.672

Study year

Before 2015

Reference

Reference

2015 and above

−13.14142

0.156

Sample

Sample size of each articles

−.0092616

0.665

Study design

Cohort

−10.0263

0.199

Cross sectional

Reference

Reference

Gender distribution

Male

.0071367

0.883

Female

Reference

Reference

Sampling technique

Simple random

3.11105

0.747

Systematic

15.15263

0.385

Undefined

Reference

Reference

Mean age in years

<=35

9.531214

0.282

> 35

9.762604

0.328

No report of mean age

Reference

Reference