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Table 1 Results of adjusted multivariate regression to determine independent effect of variables on SIR* estimates for cancer in SLE

From: Cancer risk factors in systemic lupus erythematosus: multivariate regression analysis in 16,409 patients

  Adjusted effectsa 95% confidence interval
Female sex 1.00 0.77 to 1.30
Race/ethnicity   
  White Reference group  
  Black 0.75 0.58 to 0.97
  Asian 1.18 0.85 to 1.62
Age   
  <40 Reference group  
  40 to 59 0.72 0.55 to 0.94
  60+ 0.55 0.42 to 0.73
SLE duration   
  <5 years Reference group  
  ≥5 years 0.74 0.61 to 0.89
Calendar-year period   
  <2000 Reference group  
  ≥2000 0.95 0.79 to 1.15
  1. aVariables adjusted concomitantly for all others (sex, race/ethnicity, age, SLE duration, calendar-year period).