Table 5a: 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. 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

32/38

165/173

60-69

38/42

47/54

13/37

98/133

70

7/7

27/35

9/39

43/81

Total

173/177

155/172

60/121

388/470