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Table 3 Cumulative effects of selected SNPs on HCV infection outcomes

From: Genetic variants in antigen presentation-related genes influence susceptibility to hepatitis C virus and viral clearance: a case control study

a) Combined favorable alleles (rs1063478–T and rs2284191–G) and anti–HCV

Variables

Uninfected N(%)

Infected N(%)

OR (95% CI)

0–1

37 (7.7)

75 (10.0)

1.00

2

227 (47.1)

364 (48.4)

0.62 (0.37–1.03)

3

188 (39.0)

245 (32.6)

0.46 (0.27–0.78)

4

30 (6.2)

41 (9.0)

0.50 (0.24–1.04)

Trend

  

P a = 0.037

0–2

264 (54.8)

439 (58.4)

1.00

3–4

218 (45.2)

286 (41.6)

0.70 (0.53–0.93)

b) Combined favorable alleles (rs17587–A and rs7383287–G) and HCV chronicity

Variables

Resolver N(%)

Chronic N(%)

OR (95% CI)

0

71 (36.8)

257 (48.3)

1.00

1

62 (32.1)

177 (33.3)

0.79 (0.53–1.77)

2

50 (25.9)

74 (13.9)

0.42 (0.26–0.66)

3–4

10 (5.2)

23 (4.5)

0.62 (0.27–1.37)

Trend

  

P a = 0.001

0

71 (36.8)

257 (48.3)

1.00

1–4

122 (63.2)

275 (51.7)

0.63 (0.45–0.88)

  1. Logistic regression analyses adjusted for age, gender, experience of blood/plasma donation, and numbers of blood/plasma donation.
  2. a P value of Cochran-Armitage’s trend test.