Table 3.
Characteristics of included studies on both firefighting and police work and prostate cancer risk (N = 7)
| Author/Year | Location of Study | Study Design | Incidence or Mortality | Follow-up Period | Number of Cases/Deaths | Cohort Size/Total Number of Casesa | Prostate Cancer Risk Estimates for Ever versus Never Employmentb |
|---|---|---|---|---|---|---|---|
| Sritharan et al, 2017b* | Canada | Cohort (linkage) | Incidence | 1991–2011 | 165 firefighters; 325 police | 1,100,000 1,100,000 |
HR 1.17, 95% CI 1.01–1.36; HR 1.22, 95% CI 1.09–1.36 |
| Zeegers et al. 2004 [11] | Netherlands | Cohort (linkage) | Incidence | 1986–1993 | 709 firefighters; 693 police | 58, 279 58, 279 |
RR 0.59, 95% CI 0.05–6.33; RR 1.62, 95% CI 0.62–4.27 |
| Demers et al. 1994 [28] | USA | Cohort | Incidence | 1974–1989 | 66 firefighters; 28 police | 2, 447 1, 878 |
SIR 1.40, 95% CI 1.10–1.70; IDR 1.10, 95% CI 0.70–1.80 |
| Demers et al. 1992 [29] | USA | Cohort | Mortality | 1945–1989 | 30 firefighters; 11 police | 4, 546 3, 676 |
SMR 1.34, 95% CI 0.90–1.91; SMR 1.02, 95% CI 0.51–1.82 |
| Sritharan et al. 2017a [79] | Canada | Case–control | Incidence | 1995–1998 | 38 firefighters; 35 police | 1, 737 1, 737 |
OR 1.67, 95% CI 0.94–2.95; OR 1.15, 95% CI 0.66–1.99 |
| Sritharan et al. 2016 [80] | Canada | Case–control | Incidence | 1994–1997 | 53 firefighters; 12 police | 760 760 |
OR 0.73, 95% CI 0.53–1.01; OR 0.82, 95% CI 0.41–1.63 |
| Sauve et al. 2016 [12] | Canada | Case–control | Incidence | 2005–2009 | 26 firefighters; 45 police | 1, 937 1, 937 |
OR 1.72, 95% CI 0.88–3.37; OR 1.60, 95% CI 1.00–2.40 |
acohort size represents the total sample size in only cohort studies, and the total number of cases is only applicable to case–control studies
bHR – hazard ratio, SIR – standardized incidence ratio, SMR – standardized mortality/morbidity ratio, RR – relative risk, IDR – incidence density ratio, OR – odds ratio
*manuscript submitted and currently being revised for publication