Table 5b: Lung cancer cases which are "more likely than not" due to radon progeny exposure and total cases by age and years since last radon exposure. Estimated relative risks are increased to incorporate statistical uncertainty at the 80 percent level. Cases from pooled Colorado and NM studies.

Years since last exposure

Age at disease

<10

10-19

20

Total

<50

57/57

19/19

6/7

82/83

50-59

71/71

62/64

33/38

166/173

60-69

39/42

49/54

17/37

105/133

70

7/7

29/35

12/39

48/81

Total

174/177

159/172

68/121

401/470