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Table 4 Risk factors associated with S. mansoni and Hepatitis C virus infections among individuals living in fishing villages of northwestern Tanzania

From: Co-infection of Schistosoma mansoni/hepatitis C virus and their associated factors among adult individuals living in fishing villages, north-western Tanzania

Variable cRR 95%CI P-value aRR 95%CI P-value
Sex
 Female 1    1   
 Male 1.66 0.9–2.9 0.1 1.45 0.8–2.7 0.24
Age groups (in years)
 15–25 1    1   
 26–35 3.18 1.2–8.3 0.02 2.67 1.0–6.9 0.04
 36–45 0.77 0.2–2.8 0.69 0.83 0.2–3.1 0.79
 46–55 3.06 1.2–8.1 0.02 2.89 1.1–7.6 0.03a
Occupation
 Small scale business 1    1   
 Farming 1.58 0.6–4.4 0.9 1.31 0.5–3.6 0.6
 Fishing 2.93 0.9–9.4 0.1 1.89 0.6–6.3 0.3
Village of residence
 Sangabuye 1    1   
 Kayenze 3.53 1.6–7.9 0.002 3.67 1.6–8.3 0.02a
 Igombe 0.57 0.16 – 1.9 0.37 0.66 0.2–2.3 0.51
 Igalagala 2.26 0.8–6.3 0.12 2.14 0.8–5.9 0.14
Education level
 Literate 1   
 Illiterate 1.18 0.66–2.0 0.58
Left liver lobe hepatomegaly
 Normal 1    1   
 Moderate 1.60 0.8–3.1 0.16 1.79 0.9–3.5 0.1
 Marked 2.26 1.1–4.8 0.03 2.32 1.1–4.9 0.03a
Splenomegaly
 Normal 1   
 Moderate 1.86 0.9–3.5 0.05
 Marked 2.97 1.4–6.5 0.01
Periportal fibrosis (PPF) grades
 Normal 1      
 Grade C 0.54 0.1–3.8 0.54
 Grade D 2.39 1.1–5.1 0.03
 Grade E & F 1.02 0.1–7.1 0.98
  1. aSignificant factors, cRR Crude Risk Ration, aRR Adjusted Risk Ratio