Table 2.
Observed (Obs) numbers of prostate cancer cases and standardized incidence ratios (SIR) among men 30–49 years of age and men 50 years or older, respectively, by period (pre- and post-PSA) for occupational categories that were significantly associated with early-onset prostate cancer overall or within specific periods (p<0.05) in the five Nordic countries.
| Men 30–49 years of age | Men 50 years of age or older | |||||||
|---|---|---|---|---|---|---|---|---|
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| 1961–1985 | 1986–2005 | 1961–1985 | 1986–2005 | |||||
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| Occupational categorya | Obs | SIR (95% CI)b | Obs | SIR (95% CI) | Obs | SIR (95% CI)b | Obs | SIR (95% CI)b |
| Technical workers, etc | 56 | 1.11 (0.84–1.44) | 120 | 1.22 (1.01–1.46) | 4512 | 1.09 (1.06–1.12) | 21753 | 1.11 (1.10–1.13) |
| Artistic workers | 9 | 2.85 (1.30–5.41) | 5 | 0.73 (0.24–1.70) | 373 | 1.17 (1.06–1.30) | 1403 | 1.08 (1.02–1.14) |
| Administrators | 50 | 1.72 (1.28–2.27) | 40 | 1.15 (0.82–1.56) | 3932 | 1.14 (1.11–1.18) | 12631 | 1.18 (1.16–1.20) |
| Sales agents | 22 | 0.89 (0.56–1.35) | 64 | 1.35 (1.04–1.72) | 3954 | 1.09 (1.06–1.13) | 12392 | 1.10 (1.08–1.12) |
| Gardeners | 8 | 0.55 (0.24–1.08) | 8 | 0.69 (0.30–1.36) | 2776 | 0.87 (0.84–0.91) | 6422 | 0.90 (0.88–0.92) |
| Smelting workers | 4 | 0.35 (0.10–0.89) | 7 | 0.87 (0.35–1.80) | 1537 | 1.04 (0.98–1.09) | 3248 | 0.90 (0.87–0.94) |
| Public safety workers | 11 | 1.47 (0.73–2.63) | 31 | 1.81 (1.23–2.57) | 1017 | 1.08 (1.01–1.14) | 3834 | 1.11 (1.08–1.15) |
| Military personnel | 16 | 2.52 (1.44–4.09) | 12 | 1.53 (0.79–2.67) | 385 | 1.12 (1.01–1.23) | 2303 | 1.09 (1.04–1.13) |
Abbreviations: 95% CI, 95% Confidence Interval; Obs, observed case number; SIRs, standardized incidence ratios.
a
The referent group was all 54 occupational categories combined
b
Bolding denotes statistical significance (p<0.05)