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 |