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Table 1 Descriptive statistics and distribution for the ages of subjects in the study

From: Low back pain in junior Australian Rules football: a cross-sectional survey of elite juniors, non-elite juniors and non-football playing controls

  Elite junior Non-elite junior Control
Number 102 60 100
Mean (SD) 17.2 (0.576) 15.8 (0.676) 15.8 (1.237)
Median 17 16 16
Range 16-18 14-17 14-18
  Frequency Percentage
Age Elite junior Non-elite junior Control Elite junior Non-elite junior Control
14 0 1 24 0 1.7 24.0
15 0 17 12 0 28.3 12.0
16 10 34 26 9.8 56.7 26.0
17 66 8 35 64.7 13.3 35.0
18 26 0 3 25.5 0 3.0