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Table 3 Factors related to serum anti-HBc and HBsAg status

From: Prevalence and characterization of hepatitis B and C virus infections in a needle-sharing population in Northern China

  Anti-HBc Pvalue HBsAg Pvalue
Positive (n = 577) Negative (n = 275) Positive (n = 91) Negative (n = 761)
Sex (male/female) 277/300 102/173 0.003 45/46 334/427 0.313
Age (years) 53.31 ± 11.05 47.40 ± 14.12 <0.001 50.34 ± 9.88 51.53 ± 12.70 0.39
No. of injections (median) 5 0 <0.001 0 1 0.376
Time from first injection (years, median) 22 0 <0.001 0 19 0.473
Anti-HBc S/CO ratio     0.006 0.096 <0.001