[b] NSAID use the morning of the marathon
NSAID group (n=11)Control group (n=17)P value
Pre-marathon [Na] (mmol/L)142.2±4.6141.4±4.30.633
Post-marathon [Na] (mmol/L)141.4±3.7141.6±3.60.874
∆ [Na] (mmol/L)−0.8±4.70.2±6.30.639