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Table 1 Population-weighted multinomial logistic regression model for association of classic Kaposi sarcoma (KS) and KS-associated herpesvirus with core variables.*

From: Risk of classic Kaposi sarcoma with exposures to plants and soils in Sicily

   cKS cases KSHV-negative controls KSHV + controls*
Core model variables N OR* 95% CI N OR* 95% CI N
Sex        
  Female 45 0.40 0.14 - 1.13 194 0.52 0.20 - 1.37 26
  Male 77 Ref   558 Ref   62
Age        
  81+ 29 0.48 0.19 - 1.16 141 0.66 0.30 - 1.45 22
  75 to 80 39 0.67 0.27 - 1.67 174 0.60 0.27 - 1.31 24
  68 to 74 28 0.47 0.19 - 1.16 184 0.54 0.25 - 1.19 24
  <68 26 Ref   253 Ref   18
Smoker        
  Current 9 0.26 0.08 - 0.88 141 0.64 0.25 - 1.66 16
  Former 52 0.47 0.17 - 1.28 329 0.57 0.22 - 1.48 41
  Never 61 Ref   282 Ref   31
Cortisone use        
  Yes 62 1.44 0.75 - 2.77 292 0.94 0.53 - 1.67 38
  No 60 Ref   460 Ref   50
Diabetes        
  Yes 37 7.47 3.04 - 18.35 131 4.69 1.97 - 11.17 8
  No 85 Ref   621 Ref   80
  1. * Odds ratios (OR) and confidence intervals (CI), with KSHV+ controls as referent group, are adjusted for all variables in the model.