Table 9. Increase in the result of the 6-min-run between the different BMI-classification at T1 (BMI-T1) in both schooltypes (IS = intervention schools; CS = control schools).
BMI-T1 N Means (±SD)
obesity IS 28 61.0 (138.6)
CS 17 16.9 (86.63)
overweight IS 35 70.9 (147.5)
CS 20 82.2 (99.5)
normal weight IS 321 87.1 (130.1)
CS 126 78.3 (129.7)
underweight IS 29 131.5 (120.8)***
CS 18 74.1 (107.3)
*** p = 0.006 compared with CS by ANCOVA (adjusted for gender and age).