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)
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