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Table 1 Number of subjects and their physical characteristics

From: The effect of the kindergarten barefoot policy on preschool children’s toes

    Barefoot group Non-barefoot group
    1st 2 years later 1st 2 years later
Boys n 34 34 103 103
  Age Mean 4.2 6.2 4.4 6.4
   S.D. 0.3 0.3 0.2 0.2
  Height Mean 100.8 113.8 102.2 115.7
  (cm) S.D. 4.1 4.6 4.0 4.6
  Body mass Mean 15.9 20.3 17.0 21.3
  (kg) S.D. 2.1 3.8 1.9 3.0
Girls n   25 25 76 76
  Age Mean 4.3 6.3 4.4 6.4
   S.D. 0.2 0.2 0.1 0.1
  Height Mean 101.0 114.5 102.5 116.3
  (cm) S.D. 4.0 4.3 3.7 4.6
  Body mass Mean 15.7 19.6 17.0 21.7
  (kg) S.D. 1.9 2.4 1.8 2.7