Li, M., Gu, S., Bi, P., et al. (2015). Heat Waves and Morbidity: Current Knowledge and Further Direction-A Comprehensive Literature Review. International Journal of Environmental Research and Public Health. 12(5): 5256-5283.
This analysis of 33 studies found that the elderly, males, children, and those with chronic diseases were more vulnerable during heat waves. The authors also found that certain social factors (e.g., lower socioeconomic status) had a relationship to heat susceptibility. They suggest incorporating morbidity indicators into heat wave early warning systems to bolster health response.