Table 1 Mesothelioma mortality rates, per 100 000 person-years*, by cumulative exposure and time since first exposure among Wittenoom women, 1950–2004
WorkersResidentsAll
DeathsRate (95% CI)DeathsRate (95% CI)DeathsRate (95% CI)
Time since first exposure (years)
    20–29380 (26 to 248)417 (7 to 46)726 (12 to 55)
    30–395159 (66 to 381)1479 (47 to 133)1991 (58 to 142)
    40+2161 (40 to 643)12138 (78 to 243)14141 (83 to 237)
Cumulative exposure (f/ml-years)
    0–<5642 (19 to 94)711 (5 to 24)1317 (10 to 30)
    5–<1000 (–)634 (15 to 75)632 (14 to 71)
    10–<203434 (140 to 1346)754 (26 to 113)1073 (39 to 136)
    20–<301478 (67 to 3390)5117 (49 to 281)6134 (60 to 298)
    30+00 (–)5171 (71 to 411)5166 (69 to 400)
  • *Women lost to follow-up were assumed alive to the end of 2004.