Fig. 1: Relative risk (RR) curves derived in this study.

The RR curves show the minimum mortality temperature (MMT) thresholds for a daytime and b nighttime. The MMT thresholds were used in the preparation of a heat hazard layer. MMT refers to the temperature at which the probability of dying is lowest. RR refers to the probability of a person dying when exposed to non-optimum temperature as a ratio of the probability of a person dying when exposed to optimum temperature (i.e., the MMT). See Methods for details.