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Table 2 Summary of the study population characteristics

From: Do children and adolescent ice hockey players with and without a history of concussion differ in robotic testing of sensory, motor and cognitive function?

  NO history of concussion History of concussion
Subjects n = 292 n = 93
Age – Years: mean (95 % confidence interval) 11.3 (11.2, 11.5) 11.5 (11.3, 11.6)
Age Range 10–14 years 10–12 years
Age group 1 (10,11): frequency (proportion) n = 179 (61 %) n = 46 (49 %)
Age group 2 (12,13,14): frequency (proportion) n = 113 (39 %) n = 47 (51 %)
Sex: frequency (proportion) M = 272 (93 %) M =90 (97 %)
F = 20 (7 %) F = 3 (3 %)
Weight (kg): mean (95 % confidence interval) M = 43.1 (41.9, 44.3) M = 43.4 (41.4, 45.4)
F = 44.1 (40.4, 47.8) F = 35.8 (27.6, 44.1)
Height (cm): mean (95 % confidence interval) M = 151.2 (150.2, 152.2) M = 151.4 (149.8, 153.0)
F =151.3 (146.7, 155.9) F = 145.5 (133.3, 157.6)
Dominant Hand (proportion) R = 258 (88 %) R = 81 (87 %)
Hand: frequency (proportion) L = 34 (12 %) L = 12 (13 %)
  1. Subject characteristics with mean (95 % confidence intervals), range, and frequency (proportion) included