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. 2023 May 19;9:33. doi: 10.1186/s40798-023-00570-y

Table 5.

Self-reported sequelae at six and twelve months after the EHS/ERM event

EHS ERM Total P-value
Yes No Yes No Yes No
(n = 46) (n = 11) (n = 57)
Sequelae after 6 months (n) 21 25 10 1 31 26 0.007
 Subjective heat intolerance 19 24** 9 2 28 26** 0.041
 Muscle symptoms at rest 8 38 7 3* 15 41* 0.002
  Myalgia 4 42 6 4* 10 46* 0.001
  Muscle cramps 3 43 4 6* 7 49* 0.015
  Muscle swelling 46 2 8* 2 54* 0.029
  Muscle weakness 5 41 5 5* 10 46* 0.011
 Muscle symptoms during exercise 7 39 9 2 16 41 < 0.001
  Myalgia 5 41 7 4 12 45 < 0.001
  Muscle cramps 2 44 7 4 9 48 < 0.001
  Muscle swelling 46 3 7* 3 53* 0.004
  Muscle weakness 3 43 8 3 11 46 < 0.001
 Neurological sequelae 10 36 1 9* 11 45* 0.67
  Impaired balance 2 44 10* 2 45* 1.00
  Speech disorders 46 10* 56*
  Slower thought process 7 39 1 9* 8 48* 1.00
  Impaired memory 4 42 10* 4 52* 1.00
EHS ERM Total P-value
Yes No Yes No Yes No
(n = 32) (n = 11) (n = 43)
Sequelae after 12 months (n) 11 21 10 1 21 22 0.002
 Subjective heat intolerance 10 22 9 2 19 24 0.005
 Muscle symptoms at rest 4 28 7 3* 11 31* 0.001
  Myalgia 1 31 6 4* 7 35* < 0.001
  Muscle cramps 2 30 3 7* 5 37* 0.08
  Muscle swelling 32 1 9* 1 41* 0.24
  Muscle weakness 3 29 5 5* 8 34* 0.012
 Muscle symptoms during exercise 3 29 9 2 12 31 < 0.001
  Myalgia 2 30 8 3 10 33 < 0.001
  Muscle cramps 2 30 7 4 9 34 < 0.001
  Muscle swelling 32 3 8 3 40 0.010
  Muscle weakness 2 30 8 3 10 33 < 0.001
 Neurological sequelae 5 27 11 5 38 0.30
  Impaired balance 1 31 11 1 32 1.00
  Slower thought process 3 29 11 3 40 0.55
  Impaired memory 1 31 11 1 40 1.00

EHS Exertional heatstroke; ERM Exertional rhabdomyolysis; NR Not reported

*Missing value in one participant

**Missing value in three participants