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Table 2 Predicted probabilities of CRC incidence and mortality in the two cohorts - Multivariate logistic regression model

From: Methodological approaches to population based research of screening procedures in the presence of selection bias and exposure measurement error: colonoscopy and colorectal cancer outcomes in Ontario

Study cohorts   Colonoscopy Estimate 95% CI Absolute risk difference 95% CI
Unselected cohort (n = 1,341,612)       
  Incidence      
   No 1.75 1.73, 1.77 3.26 3.22, 3.30
   Yes 5.01 4.97, 5.04   
  Mortality      
   No 0.38 0.33, 0.42 0.79 0.71, 0.87
   Yes 1.17 1.10, 1.23   
Restricted cohort (n = 1,089,998)       
  Incidence      
   No 1.42 1.39, 1.44 -0.53 -0.60, -0.44
   Yes 0.90 0.82, 0.98   
  Mortality      
   No 0.24 0.18, 0.29 -0.08 -0.19, 0.04
   Yes 0.16 0.13, 0.34   
  1. Data are presented as percentages.
  2. CRC, colorectal cancer; CI, confidence interval.
  3. Multivariate logistic model adjusted subject characteristics such as age, sex, charlson comorbidity index, rural area of residence and income quintile.