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Table 5 BMI Ranking by Self-reported Characteristics of CrossFit™ Participants

From: Incidence, severity and perceived susceptibility of COVID-19 in the UK CrossFit population

  Descriptive statistics
Sample characteristics BMI ranking  
Total N Mean [SD] Total N Mean [SD] d.f H p ES
Age 1806 2.53 [0.90] 1806 2.74 [0.76] 5 15.01 0.01a 0.01
Participant’s ethnicity 1806 1.11 [0.51] 1806 2.74 [0.76] 3 0.56 0.91 0.00
Exercise experience 1796 4.26 [1.77] 1806 2.74 [0.76] 5 0.99 0.96 0.00
Minutes of exercise per wk 1796 3.38 [3.38] 1806 2.74 [0.76] 4 15.99 0.003a 0.01
CF training experience [yrs] 1784 2.93 [1.62] 1806 2.74 [0.76] 5 5.31 0.38 0.00
CF classes per wk 1795 3.84 [1.04] 1806 2.74 [0.76] 4 7.38 0.12 0.00
  1. BMI, body mass index; ES, effect size based on epsilon squared for Kruskal Wallis H test; n, number; SD, standard deviation; d.f., degrees of freedom; H, Kruskal–Wallis test; p, Kruskal–Wallis test probability value, CF, CrossFit; wk, week; yrs, years
  2. aSuperscript indicates significant differences between groups. Statistical significance: p < 0.05