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Table 2 Frequency distribution of PTPN22 +1858 C/T polymorphism in psoriatic arthritis patients and controls

From: Association between the PTPN22+1858 C/T polymorphism and psoriatic arthritis

Genotype Patients (n= 291) n (%) Controls (n= 725) n (%) χ2 P-value OR 95% CI
CC 204 (70.1) 563 (77.7) 6.40 0.011 0.67 0.49 to 0.93
CT 81 (27.8) 152 (21.0) 5.54 0.019 1.45 1.05 to 2.01
TT 6 (2.1) 10 (1.3) 0.62 0.430 1.51 0.48 to 4.54
CT+TT 87 (29.9) 162 (22.3) 6.56 0.010 1.49 1.10 to 2.02
T allele 93 (16.0) 172 (11.9) 6.21 0.013 1.41 1.07 to 1.87
  1. CI, confidence interval; OR, odds ratio.