Age (y) | Male pottery workers | England and Wales male population | ||||
---|---|---|---|---|---|---|
P-years | Ca lung deaths | Death rate/1000/y | Death rate/1000/y | Rate ratio | Weight* | |
(1) | (2) | (1)/(2) | ||||
*Weights were chosen to minimise the standard error of the weighted mean (see text). | ||||||
55–59 | 4334 | 13 | 3.0 | 1.3 | 2.3 | 0.346 |
60–64 | 2200 | 11 | 5.0 | 2.8 | 1.8 | 0.378 |
65–69 | 1096 | 8 | 7.3 | 4.1 | 1.8 | 0.276 |
Total | 7630 | 32 |