Document 7RydRwn1X3rz3a1de6Rz7QE5V
31.
TABLE 5 - Part 1
Study of the Asbestos Cohort
No. Alive At Beginning Year of Year
1950
2273
1951
2267
1952
2261
1953
2252
1954
2243
1955
2231
Totals
Cause of Proved Suspected Primary Primary Ca.of Lung Ca. of Lung
1 00 10 00 00 00 2 '0 3o
Death
Other Causes
6 5 9 9 12 5 46
Unknown
0 0 0 0 0 0 0
ManYears ol
Risk
2270 2264 2256.5 2247.5 2237 2227.5 13S02.5
"Proved" cancer of lung death .rate per 100,, 000 man-years of risk s
22.2 f----- -------1 13502.3
TABLE 5 - Part U
Study of the Thetford Mines Cohort
No. Alive At Beginning Year of Year
Cause of Proved Suspected Primary Primary Ca. of Lung Ca. of Lung
Death
Other Causes
Unknown
ManYears of
Risk
1950
3685
1951
3675
1952
3661
1953
3633
1954
3605
1955.
3579.
Totals
l 1 0 2 1 1 6
2
61
3680
0 12 1 3663 0 28 0 3647
1 25 0 3619 0 21 4 3592
0 31 0 3563
3
123
"o"
21769
"Proved" cancer of lung death rate per 100, 000 man-years of risk =
27.6 (--1 21769
"Suspected" plus proved cancer of lung death rate per 100,000 man-