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

From: Predictors of successful long-term weight loss maintenance: a two-year follow-up

Variable Successful Unsuccessful P value
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
  1. Quantitative data are shown as mean ± SD. Qualitative data are shown as percentage. Two-sample t-test and χ 2-test or Fisher’s exact test were used
  2. Intervention was judged successful if the subject lost at least 10% of their initial weight during the weight loss intervention and had maintained the loss at 24-month follow-up. Intervention was unsuccessful for subjects who did not meet the above criteria at the end of the 24-months
  3. Pre: data at the beginning of the weight loss intervention
  4. Post: data at the end of the weight loss intervention
  5. ∆ BW: Body weight at the end of weight loss intervention minus body weight at the beginning of weight loss intervention
  6. BMI Body Mass Index, BW Body Weight, CES-D Center for Epidemiologic Studies-Depression Scale, STAI State-Trait Anxiety Inventory, BES Binge Eating Scale, TFEQ Three Factor Eating Questionnaire, YFAS Yale Food Addiction Scale