Figure 3.

Percent of On-duty CHD Fatalities occurring in Firefighters ≤ 50 years old and Relative Risk of CHD Death as a Function of Different Duties. Red Boxes: Horizontal line inside each box corresponds to the OR for CHD death for each activity vs. non-emergency activity. Upper horizontal line corresponds to the upper limit of the 95% CI, and the lower horizontal line corresponds to the lower limit of the 95% CI. Blue Boxes: Horizontal center of each box corresponds to the proportion expressed as a percent of CHD deaths that occurred among firefighters ≤ 50 years old in each activity.