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Table 1 Participant mean characteristics from the complete-case group and the missing-values group. Presented as means with standard deviations (SD)

From: The association between physical fitness and mental health in Norwegian adolescents

  Total difficulties score (0–40) Body mass index Sit-ups
(n/30 s)
Standing broad jump (cm) Handgrip strength
(kg)
Cardiorespiratory fitness (meters)
All values present
 Yes (n = 1486) 10.3 (5.1) 19.8 (3.1) 19 (4) 172.2 (25.9) 30.5 (7.0) 906 (98)
 No (n = 242–559) 11.9 (5.7)a 20.2 (3.5)a 19 (4) 168.2 (27.8)a 28.7 (7.4)a 932 (115)a
  1. Note.aDifference between groups is significant at p level < .05