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Table 1 Associations of personal and socio-environmental factors with initiation of unhealthy weight control behaviours.

From: Predictors of initiation and persistence of unhealthy weight control behaviours in adolescents

  Initiation (vs. Never-engaging)
  Boys Girls
Predictor OR 95% CI R 2 OR 95% CI R 2
Personal Factors    0.35    0.46
Self-esteem 0.58 0.44-0.75 0.16 0.71 0.55-0.91 0.15
Change in self-esteem 0.89 0.83-0.95   0.86 0.80-0.92  
Depressed mood 1.57 1.22-2.03 0.15 1.52 1.19-1.94 0.16
Change in depressed mood 1.14 1.06-1.23   1.18 1.10-1.26  
Weight concerns 4.84 3.32-7.04 0.31 5.09 3.55-7.30 0.43
Change in weight concerns 3.64 2.70-4.91   5.87 4.21-8.17  
Body dissatisfaction 1.05 1.01-1.08 0.16 1.07 1.04-1.11 0.20
Change in dissatisfaction 1.06 1.03-1.09   1.08 1.06-1.11  
Weight and shape importance 1.71 1.29-2.25 0.17 2.23 1.59-2.84 0.20
Change in importance 1.85 1.45-2.37   2.30 1.78-2.97  
Benefits: healthy eating 1.16 0.91-1.49 0.14 1.51 1.18-1.93 0.13
Change in benefits 1.50 1.12-2.01   1.81 1.33-2.46  
Health concerns 1.30 1.03-1.65 0.13 0.99 0.79-1.25 0.10
Change in health concerns 1.10 1.01-1.19   1.03 0.94-1.12  
Socio-Environmental Factors    0.27    0.26
Parental concern about weight 1.64 1.24-2.16 0.16 1.42 1.07-1.89 0.11
Change in parental concern 1.09 1.01-1.17   1.03 0.95-1.12  
Peer dieting 1.98 1.45-2.70 0.20 1.57 1.20-2.04 0.13
Change in peer dieting 1.37 1.10-1.70   1.38 1.14-1.68  
Teasing frequency 1.40 1.07-1.85 0.13 1.22 0.92-1.61 0.10
Change in teasing frequency 1.14 0.93-1.39   1.21 0.92-1.61  
Weight loss article reading 1.68 1.23-2.27 0.16 1.92 1.49-2.48 0.21
Change in reading 1.71 1.36-2.16   2.07 1.67-2.58  
Family connectedness 0.90 0.72-1.13 0.13 0.70 0.56-0.88 0.12
Change in connectedness 0.97 0.91-1.03   0.93 0.87-0.98  
Combined Models       
All predictors (personal and socio-environmental) 0.45    0.51
Covariates only (cohort, race, weight status) 0.12    0.10
  1. Note. N = 791 for boys, 598 for girls. All models are adjusted for cohort, race/ethnicity, and weight status from Time 1 to Time 2. R2 = percent variance explained by separate and combined predictor models. Each of 12 single predictor models includes predictor, change in predictor, and covariates. Combined models include all personal, all socio-environmental, or all predictors as well as change in predictor and covariates. Statistically significant odds ratios (p < .05) are shown in bold type.