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Table 2 Cough Symptoms at Exercise for each Season

From: Seasonal variations of cough reflex sensitivity in elite athletes training in cold air environment

  Summer Fall Winter *p-value
Athletes n = 31 n = 37 n = 23 0.45
During exercise 9% 18% 18% 0.04†
Within 1 h after exercise 44% 54% 71% 0.99
Between 2 and 8 h after exercise 24% 21% 21%  
Non-athlete subjects n = 19 n = 8 n = 17 0.99
During exercise 11% 0% 12% 0.99
Within 1 h after exercise 16% 3% 18% 0.47
Between 2 and 8 h after exercise 0% 0% 6%  
** p -value     
During exercise 0.06 0.31 0.06  
Within 1 h after exercise 0.49 0.02 0.06  
Between 2 and 8 h after exercise 0.99 1.00 0.16  
  1. * p-value represent the within group comparisons
  2. † Summer vs winter
  3. ** p-value represent the between group comparisons