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Table 2 Sub-group meta-analysis of studies reporting HBV prevalence in China from 2013 to 2017

From: Hepatitis B infection in the general population of China: a systematic review and meta-analysis

Sub-group Numbers of Study Prevalence (%) 95% CI I2(%) Heterogeneous P-value Egger’s test P-value*
Region
 Eastern 16 6.16 5.25–7.22 99.9 P < 0.0001 0.14
 Middle 7 5.23 3.11–7.34 100.0 P < 0.0001
 Western 9 8.92 7.19–10.64 99.9 P < 0.0001
Sex
 Male 21 5.88 5.53–6.24 99.1 P < 0.0001 0.90
 Female 22 5.05 4.56–5.88 99.6 P < 0.0001 0.51
Age
 0–4 8 0.51 0.33–0.74 50.6 0.048
 5–9 6 2.08 1.05–3.46 90.2 P < 0.0001
 10–14 6 1.58 0.69–2.77 89.8 P < 0.0001
 15–19 6 3.98 1.42–6.54 96.9 P < 0.0001
 20–29 12 7.07 5.62–8.67 99.9 P < 0.0001 0.77
 30–39 12 7.43 6.11–9.04 99.9 P < 0.0001 0.72
 40–49 11 7.08 5.72–8.77 99.2 P < 0.0001 0.91
 50–59 6 7.08 5.19–9.65 93.2 P < 0.0001
 ≥ 60 3 7.39 4.20–10.59 96.7 P < 0.0001
Urban/Rural
 Urban 10 3.29 2.32–4.41 98.2 P < 0.0001 0.52
 Rural 16 5.86 4.93–6.96 100.0 P < 0.0001 0.45
  1. *: When the sample size is less than 10 articles, it is not possible to do Egger’s test