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Table 1 HBV infection status of HCWs from a Tanzanian tertiary hospital

From: Prevalence of hepatitis B virus infection among health care workers in a tertiary hospital in Tanzania

HBV serological markers Interpretation HCW (n = 598) rHCW (n = 473) nrHCW (n = 125) p-value
HBsAg Anti-HBc Anti-HBs (U/mL)    subgroup subgroup  
+ + <10 Chronic infection 42/7.0 % 35/7.4 % 7/5.6 % 0.484
- - <10 Susceptible 187/31.3 % 144/30.4 % 43/34.4 % 0.498
- + >10 Immune after healed infection 218/36.5 % 171/36.2 % 47/37.6 % 0.765
- - >10 Immune after vaccination 121/20.2 % 99/20.9 % 22/34.4 % 0.432
+ + >10 Healing infection 1/0.2 % 1/0.2 % --- --
- + <10 Indeterminate: Long-standing resolved infection with low anti-HBs; Current infection with low HBsAg 29/4.8 % 23/4.9 % 6/4.8 % 0.977
  1. HBV hepatitis B virus, HCW health care worker
  2. Subgroups: rHCWs who were frequently exposed to infectious materials and therefore at risk of contracting HBV infection, and nrHCWs who were considered not to be at risk of contracting HBV infection