TableĀ 4

Explanatory models for training in the heat (ie, heat acclimatisation/acclimation) prior to the 2015 IAAF World Championships presented as ORs (95% CI) calculated by simple and multiple logistic regression analyses

95% OR
Prechampionship heat acclimatisation
Simple modelsMultiple model
Sex1.90 (1.01 to 3.56) (p=0.045)1.97 (1.02 to 3.82) (p=0.043)
Continent (reference: Europe)NS (p=0.057)
Human Development Index (reference: very high-level countries)
Lower developmental levels (very low-level, low-level, high-level countries)
Event category (reference: speed/power events)
Endurance events
Prechampionships medical support availableNS
Experience of heat-related symptoms1.88 (1.01 to 3.51) (p=0.048)
Previous EHI diagnosis7.27 (3.11 to 16.97) (p<0.001)7.47 (3.15 to 17.69) (p<0.001)
  • CI, confidence interval; EHI, exertional heat illness; IAAF, International Association of Athletics Federations; NS, not significant; OR, odds ratio.