From: Firefighters and on-duty deaths from coronary heart disease: a case control study
 | CHD Deaths (n = 52) % (n) | Trauma Deaths (n = 51) % (n) | P-value OR@ (95% CI$) |
---|---|---|---|
Strenuous Physical Activity on the job in the preceding 12 hours | 67 (35) | 39 (20) | 0.004 3.2 (1.4–7.2) |
Possible Smoke Exposure at Incident | 42 (22) | 31 (16) | 0.25 1.6 (0.7–3.6) |
Last Job Activity: | Â | Â | Â |
   Fire Suppression | 36 (19) | 31 (16) |  |
   Training | 17 (9) | 8 (4) | 0.002 1 |
   Fire House | 14 (7) | 0 |  |
   EMS¶ or Other Non-Fire Emergency | 12 (6) | 6 (3) |  |
   Alarm Response | 10 (5) | 33 (17) |  |
   Returning from Alarm | 10 (5) | 6 (3) |  |
   Desk Duty (Light Duty) | 2 (1) | 0 |  |
   Inspection or Investigation | 0 | 6 (3) |  |
   Maintenance | 0 | 8 (4) |  |
   Non-emergency Transit | 0 | 2 (1) |  |
Carboxyhemoglobin Post Incident: | Â | Â | Â |
   <3 % | 76 (13/17) | _____ | _____ |
   3–4.9 % | 18 (3/17) |  |  |
   5–10 % | 6 (1/17) |  |  |
Hours on Duty Prior to Symptoms (Professionals Only): | Â | Â | Â |
   0–3.9 | 24 (7/29) | _____ | _____ |
   4–7.9 | 28 (8/29) |  |  |
   8–11.9 | 17 (5/29) |  |  |
   12–15.9 | 10 (3/29) |  |  |
   16–19.9 | 7 (2/29) |  |  |
   20–23.9 | 0 |  |  |
   >24 | 14 (4/29) |  |  |
Workshift Type (Professionals Only): | Â | Â | Â |
   24 hour | 34 (11/32) | _____ | _____ |
   Rotating, night or evening | 23 (8/32) |  |  |
   Overtime | 22 (7/32) |  |  |
   On Call | 9 (3/32) |  |  |
   Regular, Daytime | 6 (2/32) |  |  |
   48 hour | 3 (1/32) |  |  |