Hepatitis C virus genotypes distribution and transmission risk factors in Luxembourg from 1991 to 2006

Table 3 Associations between genotype and transmission risk factors for the overall population

Risk factor	IVDU	Medical-related
Odds ratios (OR)
Genotype 1	0.50 (0.33 to 0.77, P = 0.0016)	2.42 (1.43 to 4.05, P = 0.0008)
Genotype 3	4.84 (2.86 to 8.25, P < 0.0001)	0.17 (0.09 to 0.35, P < 0.0001)
MH adjusted OR1
Genotype 1	0.49 (0.30 to 0.84, P = 0.0084)	2.34 (1.35 to 4.06, P = 0.0025)
Genotype 3	4.54 (1.60 to 12.70, P = 0.0043)	0.21 (0.07 to 0.64, P = 0.0064)
MH adjusted OR2
Genotype 1	0.55 (0.35 to 0.85, P = 0.0081)	2.24 (1.31 to 3.84, P = 0.0033)
Genotype 3	4.28 (2.42 to 7.57, P < 0.0001)	0.20 (0.09 to 0.42, P < 0.0001)

Odds ratio with confidence intervals 95%.

¹Mantel-Haenszel odds ratio adjusted for age and gender;

²Mantel-Haenszel odds ratio adjusted for population type.