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Table 3 Sensitivity analysis on the risk of cardiovascular disease: pretest and posttest comparison and exact test of table symmetry in 451 subjects, including 121 lost to follow-up that were presumed to keep the pretest values

From: A worksite intervention to reduce the cardiovascular risk: proposal of a study design easy to integrate within Italian organization of occupational health surveillance

  Posttest
<5% 5-9% 10-14% 15-19% >20% Total
Pretest <5% 0 0 0 0 0 0
5-9% 78 269 16 2 1 366
10-14% 0 22 31 1 2 56
15-19% 0 3 3 5 0 11
>20% 0 0 3 0 3 6
Total 78 294 53 8 6 439
  1. Symmetry exact significance probability = 0.0000.