Table 8
Observed/expected, standardised incidence ratios (SIRs) (95% CIs) white and black men by duration of employment for latency category of ⩾40 years
| Type of malignancy | Latency of ⩾40 y | |||||
|---|---|---|---|---|---|---|
| Duration of employment of <20 y | Duration of employment 20–39 y |
Duration of employment ⩾40 y |
All durations of employment | |||
| All malignant neoplasms | 0/0.12 | 377/366.05 | 89/70.61 | 466/436.78 | ||
| 1.03 (0.93 to 1.14) | 1.268-160 (1.01 to 1.55) | 1.07 (0.97 to 1.17) | ||||
| All lymphohaematopoietic neoplasms8-151 | 0/0.01 | 29/22.81 | 12/4.37 | 41/27.19 | ||
| 1.27 (0.85 to 1.83) | 2.758-150 (1.42 to 4.80) | 1.518-150 (1.08 to 2.05) | ||||
| Hodgkin's disease | — | 1/0.58 | 1/0.11 | 2/0.69 | ||
| — | — | — | ||||
| Non-Hodgkin's lymphoma (SEER) | — | 13/10.22 | 4/1.93 | 17/12.15 | ||
| 1.27 (0.68 to 2.18) | — | 1.40 (0.82 to 2.24) | ||||
| Multiple myeloma | — | 4/3.93 | 3/0.81 | 7/4.74 | ||
| — | — | 1.48 (0.59 to 3.04) | ||||
| Leukaemia | — | 9/7.73 | 4/1.45 | 13/9.18 | ||
| 1.16 (0.53 to 2.21) | — | 1.42 (0.75 to 2.42) | ||||
