Table 5: Heat stress indices at workstations.

Index Rest Work p-value
Min - Max Mean ± SD Min - Max Mean ± SD
DI (0C) 25- 28.5 26.12 ± 0.93 25.9 – 31.85 28.28 ± 1.11 t= -13.96, P<0.001
WBGT (0C) 24.4 – 26.9 25.34 ± 0.49 26 – 31.31 29.05 – 1.27 t= -26.94, P<0.001