Table 3 Univariate analysis of weight loss maintenance at the 24-month follow-up

Number

27

59

Physical characteristics

 Age (years)

50.9 ± 10.9

46.6 ± 11.5

0.11

 Pre BMI (kg/m²)

31.4 ± 4.9

31.1 ± 4.8

0.82

 Pre BMI ≥ 40 kg/m² (%)

7.4

3.4

0.59

 Pre BMI ≥ 35 kg/m² (%)

14.8

18.6

0.77

 Pre BW (kg)

75.7 ± 11.8

77.1 ± 12.4

0.62

 ∆ BW (kg)

−13.3 ± 5.7

−9.2 ± 3.6

0.0001

Social status (%)

 Level of schooling, >12 years (%)

51.9

45.8

0.60

 Employment status, working (%)

44.4

64.4

0.10

 Marital status, married (%)

70.4

61.0

0.40

Obesity-related comorbidities (%)

 Type 2 diabetes mellitus

22.2

30.5

0.42

 Hypertension

29.6

28.8

0.94

Psychological characteristics (score)

 Pre CES-D

9.7 ± 6.6

12.1 ± 6.8

0.12

 Post CES-D

9.6 ± 7.7

14.1 ± 9.7

0.025

 Pre STAI-state

39.9 ± 1.8

41.7 ± 1.2

0.43

 Post STAI-state

40.7 ± 2.1

42.5 ± 1.4

0.49

 Pre STAI-trait

42.1 ± 9.9

45.1 ± 12.8

0.29

 Post STAI-trait

42.9 ± 10.8

45.7 ± 11.6

0.29

 Pre BES

13.3 ± 7.9

12.4 ± 5.9

0.55

 Post BES

5.7 ± 5.2

8.0 ± 5.6

0.076

 Pre dietary restraint (TFEQ)

7.6 ± 4.1

7.7 ± 3.8

0.91

 Post dietary restraint (TFEQ)

16.0 ± 3.1

15.1 ± 3.2

0.23

 Pre disinhibition (TFEQ)

9.6 ± 3.5

9.5 ± 3.9

0.96

 Post disinhibition (TFEQ)

5.7 ± 3.2

7.5 ± 3.5

0.024

 Pre hunger (TFEQ)

6.4 ± 3.3

6.1 ± 2.8

0.68

 Post hunger (TFEQ)

2.9 ± 2.5

3.9 ± 2.8

0.095

 Pre YFAS symptom

2.0 ± 1.6

2.1 ± 1.4

0.81

 Post YFAS symptom

1.8 ± 1.1

2.5 ± 1.6

0.022