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Table 2 Characteristics of male subjects by cardiorespiratory fitness level (tertile)

From: Cardiorespiratory fitness and the incidence of type 2 diabetes: a cohort study of Japanese male athletes

  Cardiorespiratory fitness level tertiles
  Low Medium High
Number of subjects 189 186 195
1,500 meter endurance run time (seconds) 353 (345–365) 325 (320–330) 301 (290–310)
Age (years) 23 (23–23) 23 (23–23) 23 (23–23)
Year of graduation 1982 (1978–1985) 1981 (1978–1985) 1983 (1979–1986)
BMI (kg/m2) 22.5 (21.4-23.7) 22.3 (21.3-23.4) 21.4 (20.5-22.3)
Smoker* (n,%) 111 (58.7) 106 (57.0) 58 (29.7)
College sports club participation* (n,%) 185 (97.9) 183 (98.4) 195 (100.0)
  1. Estimates shown as median (IQR: interquartile Range) or number (%).
  2. All items were the data at colleg age.
  3. *The rate smoking and college sports club participation counted “yes”.