TABLE 5.

Association of Risk Factors and Elevated CBT Across Environmental Temperatures

	All temperatures		Maximum dry bulb temperature ≥ 35°C
n with elevated CBT/participant n (%)	35/507 (6.9%)		18/169 (10.7%)
Variable	AOR	95% CI	AOR	95% CI
Male (female reference)	3.74	1.22–11.54	1.27	0.27–5.92
Age (y)	0.998	0.996–1.03	0.99	0.94–1.04
WBGT (°C)	1.22	1.08–1.38	1.42	1.10–1.83
Work rate (cpm)	1.004	1.002–1.006	1.005	1.002–1.009
BMI	1.11	1.10–1.29	1.17	1.02–1.33

BMI, body mass index; CBT, core body temperature; CI, confidence interval; WBGT, wet bulb globe temperature.