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Table 2 Interaction between HLA-Cw*0602 and streptococcal status

From: HLA-Cw*0602 associates with a twofold higher prevalence of positive streptococcal throat swab at the onset of psoriasis: a case control study

   -/+ +/+ ORa  
   N % N % OR 95% CI p
HLA-Cw*0602/Streptococci        
Guttate (n = 143) 12 32 67 63 3.5 1.5–8.7 <0.01
Plaque (n = 439) 16 5 15 11 2.3 1.0–5.1 <0.02
Control (n = 454) 7 2 1 2 1.2 0.02–9.7 0.6
  1. aOR = Odds Ratio (HLA-Cw*0602 positive individuals compared to HLA-Cw*0602 negative individuals)
  2. bCI = confidence interval