Prognostic factors at diagnosis of prostate cancer in Norway in 1960–2017, by period of diagnosis
| Firefighters | Reference occupations* | General population | |
| Proportion (95% CI) | Proportion (95% CI) | Proportion (95% CI) | |
| Clinical stage | |||
| 1960–1993 | n=77 | n=447 | n=33 860 |
| Local | 0.71 (0.60 to 0.80) | 0.62 (0.57 to 0.66) | 0.69 (0.68 to 0.69) |
| Regional | 0.03 (<0.01 to 0.10) | 0.07 (0.05 to 0.09) | 0.05 (0.04 to 0.05) |
| Distant | 0.19 (0.12 to 0.30) | 0.22 (0.19 to 0.26) | 0.20 (0.20 to 0.21) |
| Missing | 0.07 | 0.09 | 0.06 |
| p-Value† | 0.24 | 0.7 | |
| 1994–2006 | n=135 | n=1202 | n=35 211 |
| Local | 0.63 (0.55 to 0.71) | 0.58 (0.55 to 0.60) | 0.54 (0.54 to 0.55) |
| Regional | 0.21 (0.15 to 0.28) | 0.21 (0.19 to 0.24) | 0.19 (0.19 to 0.19) |
| Distant | 0.08 (0.05 to 0.14) | 0.11 (0.10 to 0.13) | 0.14 (0.14 to 0.15) |
| Missing | 0.08 | 0.1 | 0.13 |
| p-Value† | 0.44 | 0.08 | |
| 2007–2017 | n=275 | n=3085 | n=44 062 |
| Local | 0.61 (0.55 to 0.66) | 0.61 (0.59 to 0.62) | 0.58 (0.57 to 0.58) |
| Regional | 0.28 (0.23 to 0.33) | 0.26 (0.24 to 0.27) | 0.26 (0.25 to 0.26) |
| Distant | 0.04 (0.02 to 0.07) | 0.06 (0.06 to 0.07) | 0.08 (0.08 to 0.08) |
| Missing | 0.07 | 0.07 | 0.08 |
| p-Value† | 0.26 | 0.04 | |
| 2004–2017 | n=333 | n=3508 | n=54 367 |
| PSA, ng/mL | |||
| <5.0 | 0.15 (0.12 to 0.19) | 0.12 (0.11 to 0.13) | 0.09 (0.09 to 0.10) |
| 5.0–9.9 | 0.37 (0.32 to 0.42) | 0.35 (0.34 to 0.37) | 0.30 (0.30 to 0.31) |
| 10.0–19.9 | 0.19 (0.15 to 0.23) | 0.21 (0.19 to 0.22) | 0.22 (0.21 to 0.22) |
| >19.9 | 0.17 (0.13 to 0.21) | 0.18 (0.17 to 0.20) | 0.25 (0.25 to 0.26) |
| Missing | 0.12 | 0.14 | 0.14 |
| p-Value† | 0.36 | <0.001 | |
| Gleason score | |||
| <7 | 0.36 (0.31 to 0.41) | 0.34 (0.33 to 0.36) | 0.30 (0.30 to 0.31) |
| 7 (3+4) | 0.26 (0.21 to 0.31) | 0.23 (0.22 to 0.25) | 0.23 (0.23 to 0.24) |
| 7 (4+3) | 0.12 (0.09 to 0.16) | 0.13 (0.12 to 0.14) | 0.15 (0.15 to 0.15) |
| 8 | 0.10 (0.07 to 0.13) | 0.13 (0.12 to 0.14) | 0.14 (0.14 to 0.14) |
| >8 | 0.07 (0.05 to 0.11) | 0.10 (0.09 to 0.11) | 0.12 (0.11 to 0.12) |
| Missing | 0.09 | 0.07 | 0.07 |
| p-Value† | 0.28 | 0.01 | |
| WHO performance status score | |||
| 0–1 | 0.70 (0.65 to 0.75) | 0.69 (0.67 to 0.70) | 0.63 (0.62 to 0.63) |
| >2 | 0.14 (0.11 to 0.18) | 0.13 (0.12 to 0.15) | 0.20 (0.20 to 0.21) |
| Missing | 0.16 | 0.18 | 0.17 |
| p-Value† | 0.96 | 0.002 |
*Military employees, pilots and police officers.
†Chi-squared test comparing firefighters with the group in question.
PSA, prostate-specific antigen.