|
Number of workers
|
2572
|
1247
|
(48)
|
1325
|
(52)
|
973
|
(38)
|
1599
|
(62)
|
|
Race, n (%)
| | | | | | | | | | |
|
White
|
2523
|
(98)
|
1239
|
(99)
|
1284
|
(97)
|
967
|
(99)
|
1556
|
(97)
|
|
Non-white
|
49
|
(2)
|
8
|
(1)
|
41
|
(3)
|
6
|
(1)
|
43
|
(3)
|
|
Vital status as of 12-31-1998, n (%)
| | | | | | | | | | |
|
Deceased, cause of death known
|
787
|
(31)
|
348
|
(28)
|
439
|
(33)
|
305
|
(31)
|
482
|
(30)
|
|
Deceased, cause of death unknown
|
11
|
(<1)
|
7
|
(1)
|
4
|
(<1)
|
5
|
(1)
|
6
|
(<1)
|
|
Alive
|
1743
|
(68)
|
876
|
(70)
|
867
|
(65)
|
655
|
(67)
|
1088
|
(68)
|
|
Unknown
|
31
|
(1)
|
16
|
(1)
|
15
|
(1)
|
8
|
(1)
|
23
|
(1)
|
|
Age at death or date last observed (years)
| | | | | | | | | | |
|
mean ± standard deviation
|
63.6 ± 13.0
|
59.8 ± 11.8
|
67.1 ± 13.2
|
64.1 ± 12.4
|
63.2 ± 13.4
|
|
median (range)
|
64.1 (18.5 – 102.0)
|
58.6 (19.5 – 95.4)
|
69.0 (18.5 – 102.0)
|
64.8 (27.4 – 95.4)
|
63.8 (18.5 – 102.0)
|
|
Time since last employment (years) b
| | | | | | | | | | |
|
median (range)
|
26.5 (0 – 52.6)
|
25.8 (0 – 51.8)
|
26.8 (0 – 52.6)
|
21.5 (0 – 52.6)
|
29.5 (0 – 49.0)
|
|
Age at first employment (years)
| | | | | | | | | | |
|
mean ± standard deviation
|
26.8 ± 10.2
|
25.1 ± 9.3
|
28.3 ± 10.7
|
29.0 ± 9.1
|
25.4 ± 10.5
|
|
median (range)
|
23.3 (15.0 – 63.7)
|
21.8 (15.2 – 63.7)
|
25.9 (15.0 – 63.7)
|
26.4 (17.1 – 57.2)
|
20.5 (15.0 – 63.7)
|
|
Duration of employment, n (%)
| | | | | | | | | | |
|
90 days – <5 years
|
1261
|
(49)
|
674
|
(54)
|
587
|
(44)
|
338
|
(35)
|
923
|
(58)
|
|
5 years – <10 years
|
448
|
(17)
|
205
|
(16)
|
243
|
(18)
|
201
|
(21)
|
247
|
(15)
|
|
≥10 years
|
863
|
(34)
|
368
|
(30)
|
495
|
(37)
|
434
|
(45)
|
429
|
(27)
|
|
median (range)
|
5.2 (0.3 – 35.8)
|
3.9 (0.3 – 35.8)
|
6.1 (0.3 – 35.1)
|
8.7 (0.3 – 31.4)
|
3.5 (0.3 – 35.8)
|
|
Time since first employment (years), n (%)
| | | | | | | | | | |
|
< 10
|
55
|
(2)
|
36
|
(3)
|
19
|
(1)
|
22
|
(2)
|
33
|
(2)
|
|
10 – <15
|
44
|
(2)
|
20
|
(2)
|
24
|
(2)
|
14
|
(1)
|
30
|
(2)
|
|
15 – <20
|
64
|
(2)
|
34
|
(3)
|
30
|
(2)
|
28
|
(3)
|
36
|
(2)
|
|
≥20
|
2409
|
(94)
|
1157
|
(93)
|
1252
|
(94)
|
909
|
(93)
|
1500
|
(94)
|
|
median (range)
|
36.8 (0.6 – 60.0)
|
33.3 (0.6 – 59.5)
|
39.6 (1.7 – 60.0)
|
33.1 (0.6 – 53.0)
|
38.5 (0.6 – 60.0)
|
|
Person-years at risk
|
93,623
|
42,826
|
50,797
|
33,834
|
59,789
|
