Table 1

 Characteristics of pleural and peritoneal cases and non-cases

PleuralPeritonealNon-casesTotalp value*
(n = 56)(n = 20)(n = 1912)(n = 1988)
*All cases v non-cases.
†Geometric mean.
Mean (SD) Mean (SD) Mean (SD) Mean (SD)
Age at start of study59 (10)58 (7)52 (12)52 (12)<0.001
Age at first exposure (years)26 (9)24 (5)21 (11)21 (11)<0.001
Time since first exposed (years)33 (5)34 (3)31 (6)31 (6)0.0036
Mean (IQR) Mean (IQR) Mean (IQR) Mean (IQR)
Duration of exposure (days)†360 (134–976)585 (383–1037)282 (103–852)286 (106–868)0.0318
Intensity of exposure (f/ml)†13 (3–40)24 (11–96)6 (2–20)6 (2–20)<0.001
Cumulative exposure (f/ml-year)†13 (6–29)38 (16–135)5 (2–13)5 (2–14)<0.001
n (%) n (%) n (%) n (%)
Sex
    Male49 (88)20 (100)1,383 (72)1452 (73)<0.001
    Female7 (9)0529 (28)536 (27)
Smoking status
    Never16 (29)2 (10)515 (27)533 (27)0.212
    Past31 (55)16 (80)996 (52)1043 (52)
    Current9 (16)2 (10)401 (21)412 (21)
Status at Wittenoom
    ABA worker421811361196<0.001
    Resident142776792