Development and validation of an environmental heat strain risk assessment (EHSRA) index using structural equation modeling based on empirical relations

Table 3 Correlation matrix of the studied variables

Variables	1	2	3	4	5	6	7
Dry temperature	–
Wet temperature	0.626^**	–
Globe temperature	0.907^**	0.511^**	–
Air velocity	0.296^**	0.152^*	0.347^**	–
Total metabolism	0.318^**	0.131	0.332^**	0.082	–
Clothing thermal insulation	0.454^**	0.054	0.530^**	0.135	0.321^**	–
Tympanic temperature	0.751^**	0.685^**	0.766^**	0.258^**	0.509^**	0.388^**	–

(1) Dry temperature, (2) wet temperature, (3) globe temperature, (4) air velocity, (5) total metabolism, (6) clothing thermal insulation, (7) tympanic temperature
^**P < 0.01
^*P < 0.05

ISSN: 1347-4715