Table 1.

Characteristics of the Příbram uranium miner cohort

Variable
Miners, n	16,434
Follow-up period	1977–1992
Person-years	231,499
Employment Factors, mean (range)
Duration of employment, years	7.0 (1.1–37.9)
Year of birth	1935 (1886–1957)
Year of hire	1963 (1946–1975)
Age at hire	27.8 (18.0–69.7)
Age at death	62 (22–102)
Vital status, n (%)
Alive	12,209 (74.3)
Deceased	4212 (25.6)
Emigrated	12 (0.07)
Vital Status Unknown	1 (0.01)
Availability of cause of death	3776 (89.6)
Duration of follow-up in years, mean (range)	14 (0.1–16)
Radon
Cumulative radon in WLM, mean (range)	53.2 (1.2–1121.9)
< 10 WLM radon exposure, n (%)	4883 (30)
< 50 WLM, n (%)	11678 (71)
<100 WLM, n (%)	13502 (82)