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Table 3 Logistic regression analysis for independent predictors of contact with HBV (HBsAg-positive or HBsAg-negative/anti-HBc-positive status vs. HBsAg/anti-HBc-negative status)

From: Hepatitis B virus infection in undocumented immigrants and refugees in Southern Italy: demographic, virological, and clinical features

Parameter OR 95%CI P
Lower Upper
Gender
 Male vs. female 1.79 1.28 2.51 0.001
Age 1.02 1.01 1.04 0.001
Country of origin
 SSA vs. North Africa 6.18 3.37 11.36 0.000
 Eastern Europe vs. North Africa 2.00 1.02 3.91 0.043
 Asia vs. North Africa 2.65 1.35 5.21 0.005
 America vs. North Africa 0.96 0.07 6.07 0.72
Years of schooling 0.96 0.94 0.99 0.007
Sexual risk factors
 Sexual vs. parenteral exposurea 0.73 0.49 1.1 0.13
Risk factors (minorb)
 Minor risks vs. other risks 1.54 1.1 2.16 0.011
  1. aDrug addiction, surgery, dental care, abortion, blood transfusion
  2. bAcupuncture, tattoo, piercing, tribal practices