Occupational heat illness in Washington State, 1995-2005.
BACKGROUND
Little information exists describing the incidence of heat-related illness (HRI) among non-military working populations. An analysis of HRI cases utilizing workers' compensation data has not been previously reported.


METHODS
We used both ICD-9 and ANSI Z16.2 codes with subsequent medical record review to identify accepted Washington State Fund workers' compensation claims for HRI over the 11-year time period from 1995-2005.


RESULTS
There were 480 Washington workers' compensation claims for HRI during the 11-year study period. NAICS industries with the highest workers' compensation HRI average annual claims incidence rate were Fire Protection 80.8/100,000 FTE, Roofing Construction 59.0/100,000 FTE, and Highway, Bridge and Street Construction 44.8/100,000 FTE. HRI claims were associated with high outdoor ambient temperatures. Medical risk factors for HRI were present in some cases.


CONCLUSIONS
HRI cases occur in employed populations. HRI rates vary by industry and are comparable to those previously published for the mining industry.
Bonauto
David
D
Safety and Health Assessment and Research for Prevention Program, Washington State Department of Labor and Industries, Olympia, Washington 98504-4330, USA. bone235@Ini.wa.gov
Anderson
Robert
R
Rauser
Edmund
E
Burke
Brian
B
D000064:Acclimatization; D000222:Adaptation, Physiological; D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D018882:Heat Stress Disorders / Q000150:complications*; D018883:Heat Stroke / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D006358:Hot Temperature / Q000009:adverse effects*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D010865:Pilot Projects; D012307:Risk Factors; D013696:Temperature; D013997:Time Factors; D014861:Washington / Q000453:epidemiology; D014942:Workers' Compensation