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Table 2 Risk factors associated with HCV infection based on EIA (model 1) and PCR (model 2) results

From: Epidemiological aspects of HCV infection in non-injecting drug users in the Brazilian state of Pará, eastern Amazon

Risk factors Model 1 Model 2
  OR (CI 95%) p-value OR (CI 95%) p-value
Age (≥ 35 years) 2.3 (1.1 - 3.9) < 0.01 2.1 (1.2 - 4.4) 0.02
Tattoos 2.8 (1.2 - 4.1) < 0.01 8.2 (3.9 - 17.2) < 0.01
Use of a needle or syringe sterilized at home 1.7 (1.1 - 3.4) 0.02 2.3 (1.4 - 3.1) < 0.01
Shared use of drug paraphernalia 5.6 (1.8 - 9.5) < 0.01 4.1 (1.9 - 8.4) < 0.01
Uses drugs for more than 5 years 3.3 (1.9 - 4.5) < 0.01 3.0 (1.6 - 6.3) < 0.01
Use of drugs everyday 2.5 (1.4 - 3.7) < 0.01 3.8 (1.1 - 6.5) 0.01