Table 3 Comparison of completers and non-completers at 12-month follow-up

  female

177

97

1.40

.24

  male

173

76

 Age (years)

11.28

11.34

0.28

.60

<.001

 BMI-SDS (measured)

2.52

2.63

8.53

<.001

.02

 Duration of inpatient stay (days)

39.95

39.14

0.76

.39

<.001

  IG

169

80

0.19

.66

  CG

181

93

 Weight change during stay (BMI-SDS units)

−0.35

−0.32

5.04

.03

.01

 Health-related QoL^a

67.81

65.65

3.66

.06

.01

 Weight-related QoL^a

46.79

41.97

8.51

<.001

.02

 Self-efficacy^a

57.01

56.79

0.02

.88

<.001

 Psychosocial strain^a

12.89

14.42

5.85

.02

.01

 Food intake

  healthy^a

68.23

65.16

1.25

.26

<.001

  Problematic^a

47.76

48.52

0.22

.64

<.001

  speed^a

35.52

34.45

0.29

.59

<.001

  Structure^a

72.42

68.18

8.34

<.001

.02

 Media consumption^a

23.83

24.34

0.19

.66

<.001

 Activity level^a

1.12

0.93

3.38

.07

.01

 Age

40.62

40.42

0.11

.74

<.001

 Educational level (years of school)

10.41

10.08

4.77

.03

.01

 relationship

206

85

2.63

.11

 single

83

49

 BMI (kg/m²; self-reported)

29.21

29.15

0.01

.94

<.001

  mental^a

48.45

47.72

0.55

.46

<.001

  Physical^a

49.83

49.89

0.01

.95

<.001

 Self-efficacy^a

64.32

64.54

0.02

.88

<.001

 Child’s support^a

73.09

70.83

5.12

.02

.01