Update: Heat injuries, active component, U.S. Armed Forces, 2014.

The incidence rate of heat stroke among active component service members in 2014 was slightly higher than in 2013 but similar to the rates in 2011 and 2012. Incidence rates of heat stroke were higher among males, those younger than 20 years of age, Asian/Pacific Islanders, Marine Corps and Army members, and service members in combat-specific occupations, compared to their respective counterparts. Fewer service members were treated for "other heat injuries" in 2014 (n=1,683) than in any other year of the 5-year surveillance period. In addition, there were fewer reportable medical events for "other heat injuries" in 2014 than in any of the prior 4 years. The incidence rate of "other heat injuries" was higher among females than males and was more than 6-fold higher among recruit trainees than among other enlisted members or officers. During 2010-2014, 851 diagnoses of heat injuries were documented as having occurred among service members serving in Iraq/Afghanistan; 7.1% (n=60) of those diagnoses were for heat stroke.