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Table 2 Subgroup analysis of the prevalence of anemia by risk of bias, sex, urban/rural setting, and enrolment date of study using chi2 test for heterogeneity

From: Prevalence of anemia among school-age children in Ethiopia: a systematic review and meta-analysis

  Prevalence 95% CI P value I2 (%)
Risk of bias
 High risk 0.13 0.00, 0.25 0.01 99.0
 Moderate risk 0.28 0.22, 0.34 0.00 95.0
 Low risk 0.23 0.15, 0.32 0.01 98.0
Sex
 Male 0.27 0.20, 0.34 0.01 97.0
 Female 0.24 0.18, 0.30 0.01 97.0
Enrolment date of study
 2003–2011 0.19 0.09, 0.30 0.01 99.0
 2012–2016 0.27 0.20, 0.33 0.01 95.0
Rural/urban setting
 Rural 0.33 0.26, 0.40 0.00 78.0
 Urban 0.24 0.10, 0.37 0.03 98.0