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Table 1 Number of cases, mean age at onset of lung cancer, and survival time in patients exposed and non-exposed to chromium.

From: Lung cancer incidence and survival in chromium exposed individuals with respect to expression of anti-apoptotic protein survivin and tumor suppressor P53 protein

Group No. of cases Age at onset range (yr) P Survival range (mo) P
Exposed 67 62.2 ± 9.1
39-82
  9.0 ± 12.7
0.3-60
 
Non-exposed 104 65.7 ± 10.5
43-87
0.018* 12.1 ± 21.9
0.5-210
0.473
  1. *Significant difference between exposed and non-exposed patients by t-test.