Relative cancer incidence ratios and 95% CIs for firefighters to 31 December 2010 by duration of employment (adjusted for age and calendar period)
| Full time | Part time | All paid firefighters | ||||||
|---|---|---|---|---|---|---|---|---|
| Cancer categories | Duration of employment | O | RIR (95% CI) | O | RIR (95% CI) | O | RIR (95% CI) | |
| All malignancies | >3 months–10 years | 138 | Ref | 144 | Ref | 282 | Ref | |
| 10–20 years | 196 | 1.09 (0.87 to 1.37) | 114 | 1.07 (0.82 to 1.40) | 310 | 1.09 (0.92 to 1.29) | ||
| 20+ years | 866 | 1.08 (0.87 to 1.34) | 223 | 0.98 (0.74 to 1.29) | 1089 | 1.05 (0.89 to 1.23) | ||
| Trend test | p=0.58 | p=0.84 | p=0.74 | |||||
| Lip, oral cavity and pharynx | >3 months–10 years | 9 | Ref | 11 | Ref | 20 | Ref | |
| 10–20 years | 12 | 1.37 (0.58 to 3.29) | 6 | 1.50 (0.52 to 4.37) | 18 | 1.23 (0.64 to 2.36) | ||
| 20+ years | 34 | 1.42 (0.60 to 3.38) | 4 | 1.24 (0.35 to 4.42) | 38 | 1.11 (0.57 to 2.16) | ||
| Trend test | p=0.46 | p=0.65 | p=0.78 | |||||
| Digestive organs | >3 months–10 years | 20 | Ref | 25 | Ref | 45 | Ref | |
| 10–20 years | 27 | 0.78 (0.43 to 1.41) | 17 | 0.93 (0.48 to 1.80) | 44 | 0.75 (0.49 to 1.15) | ||
| 20+ years | 183 | 0.92 (0.56 to 1.53) | 43 | 1.12 (0.58 to 2.13) | 226 | 0.88 (0.61 to 1.26) | ||
| Trend test | p=0.97 | p=0.70 | p=0.73 | |||||
| Colorectal | >3 months–10years | 14 | Ref | 16 | Ref | 30 | Ref | |
| 10–20 years | 20 | 0.79 (0.39 to 1.57) | 11 | 0.96 (0.42 to 2.19) | 31 | 0.80 (0.48 to 1.34) | ||
| 20+ years | 123 | 0.91 (0.50 to 1.66) | 30 | 1.32 (0.59 to 2.92) | 153 | 0.97 (0.62 to 1.51) | ||
| Trend test | p=0.45 | p=0.89 | ||||||
| Respiratory | >3 months–10 years | 9 | Ref | 5 | Ref | 14 | Ref | |
| 10–20 years | 15 | 1.28 (0.55 to 2.96) | 2 | 0.48 (0.08 to 2.72) | 17 | 1.15 (0.55 to 2.39) | ||
| 20+ years | 75 | 0.99 (0.45 to 2.18) | 10 | 1.13 (0.28 to 4.58) | 85 | 1.15 (0.59 to 2.27) | ||
| Trend test | p=0.75 | p=0.71 | p=0.71 | |||||
| Lung | >3 months–10 years | 8 | Ref | 4 | Ref | 12 | Ref | |
| 10–20 years | 11 | 1.01 (0.40 to 2.56) | 2 | 0.70 (0.11 to 4.37) | 13 | 0.99 (0.44 to 2.23) | ||
| 20+ years | 66 | 0.84 (0.36 to 1.96) | 9 | 1.62 (0.33 to 7.90) | 75 | 1.06 (0.51 to 2.21) | ||
| Trend test | p=0.60 | p=0.46 | p=0.84 | |||||
| Melanoma | >3 months–10 years | 35 | Ref | 36 | Ref | 71 | Ref | |
| 10–20 years | 50 | 1.26 (0.80 to 2.00) | 15 | 0.88 (0.46 to 1.69) | 65 | 1.14 (0.80 to 1.64) | ||
| 20+ years | 122 | 1.11 (0.68 to 1.81) | 36 | 1.64 (0.83 to 3.23) | 158 | 1.23 (0.84 to 1.80) | ||
| Trend test | p=0.79 | p=0.18 | p=0.29 | |||||
| Male reproductive | >3 months–10 years | 40 | Ref | 32 | Ref | 72 | Ref | |
| 10–20 years | 37 | 0.82 (0.53 to 1.30) | 47 | 1.52 (0.94 to 2.46) | 84 | 1.21 (0.88 to 1.68) | ||
| 20+ years | 277 | 1.23 (0.83 to 1.81) | 86 | 1.10 (0.68 to 1.80) | 363 | 1.21 (0.90 to 1.64) | ||
| Trend test | p=0.14 | p=0.99 | p=0.26 | |||||
| Prostate | >3 months–10 years | 23 | Ref | 26 | Ref | 49 | Ref | |
| 10–20 years | 30 | 1.05 (0.61 to 1.82) | 41 | 1.51 (0.90 to 2.54) | 71 | 1.29 (0.89 to 1.88) | ||
| 20+ years | 270 | 1.56 (0.98 to 2.51) | 86 | 1.16 (0.70 to 1.95 | 356 | 1.32 (0.94 to 1.85) | ||
| Trend test | p=0.02 | p=0.86 | p=0.15 | |||||
| Testis | >3 months–10 years | 17 | Ref | 6 | – | 23 | Ref | |
| 10–20 years | 7 | 0.60 (0.24 to 1.52) | 5 | – | 12 | 1.18 (0.57 to 2.48) | ||
| 20+ years | 7 | 0.67 (0.20 to 2.31) | 0 | – | 7 | 0.93 (0.31 to 2.75) | ||
| Trend test | p=0.39 | p=0.96 | ||||||
| Urinary tract | >3 months–10 years | 2 | Ref | 4 | Ref | 6 | Ref | |
| 10–20 years | 12 | 5.63 (1.25 to 25.30) | 9 | 4.42 (1.26to 15.44) | 21 | 4.29 (1.71 to 10.78) | ||
| 20+ years | 45 | 5.92 (1.33 to 23.30) | 12 | 4.32 (1.12 to 16.72) | 57 | 4.32 (1.71 to 10.89) | ||
| Trend test | p=0.03 | p=0.05 | p=0.01 | |||||
| Kidney | >3 months–10 years | 1 | Ref | 3 | Ref | 4 | Ref | |
| 10–20 years | 7 | 6.95 (0.85 to 56.81) | 8 | 5.34 (1.31 to 21.76) | 15 | 4.81 (1.57 to 14.72) | ||
| 20+ years | 25 | 8.19 (1.01 to 66.62) | 8 | 3.97 (0.83 to 19.02) | 33 | 4.29 (1.37 to 13.5) | ||
| Trend test | p=0.05 | p=0.13 | p=0.03 | |||||
| Lympho-haematopoietic | >3 months–10 years | 10 | Ref | 18 | Ref | 28 | Ref | |
| 10–20 years | 22 | 2.38 (1.08 to 5.26) | 7 | 0.83 (0.32 to 2.11) | 29 | 1.25 (0.72 to 2.18) | ||
| 20+ years | 75 | 3.08 (2.32 to 7.20) | 18 | 1.07 (0.40 to 2.88) | 93 | 1.61 (0.92 to 2.82) | ||
| Trend test | p=0.01 | p=0.92 | p=0.09 | |||||
| Non-Hodgkin lymphoma | >3 months–10 years | 5 | Ref | 6 | Ref | 11 | Ref | |
| 10–20 years | 9 | 2.12 (0.71 to 6.34) | 3 | 0.95 (0.22 to 4.18) | 12 | 1.69 (0.74 to 3.88) | ||
| 20+ years | 31 | 3.67 (1.28 to 10.54) | 10 | 2.27 (0.59 to 8.71) | 41 | 3.14 (1.42 to 6.95) | ||
| Trend test | p=0.01 | p=0.20 | p<0.01 | |||||
Bold/not bold was to show groups and subsets.
RIR, relative incidence ratio.