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Table 2 Odds ratios (ORs) with corresponding 95% confidence intervals (CIs) for covering the observed number of cases in the period 1993–97 with the prediction intervals calculated from trends up to 1987.

From: Empirical evaluation of prediction intervals for cancer incidence

  Crude Adjusted*
  OR 95 % CI P-value OR 95 % CI P-value
Country    < 0.001    0.39
   Denmark 1.00 Reference   1.00 Reference  
   Finland 1.35 0.56 – 3.2   1.18 0.47 – 2.9  
   Iceland 8.54 2.8 – 26.3   1.72 0.39 – 7.6  
   Norway 1.22 0.51 – 2.9   1.08 0.43 – 2.7  
   Sweden 0.41 0.16 – 1.1   0.49 0.18 – 1.3  
Log(frequency)§ 0.52 0.41 – 0.66 < 0.001 0.60 0.44 – 0.83 0.02
  1. *Both variables included in the model.
  2. §Logarithm of average number of cases per year in the period 1983–87.