Skip to main content

Table 5 Summary of multivariate logistic regression models

From: Validity and predictors of BMI derived from self-reported height and weight among 11- to 17-year-old German adolescents from the KiGGS study

  Model 2a (n = 615) Model 2b (n = 2 593) Model 2c (n = 2 593)
  Odds ratio 95% CI p Odds ratio 95% CI p Odds ratio 95% CI p
Age (per year) 1.04 0.95-1.15 0.387 0.92 0.81-1.06 0.249 0.97 0.86-1.09 0.588
Gender          
   Boys 0.78 0.53-1.15 0.210 2.68 1.50-4.80 0.001 0.69 0.48-0.99 0.045
   Girls 1.00 reference reference 1.00 reference reference 1.00 reference reference
Body perception          
   Too thin - - - 0.63 0.21-1.85 0.399 2.97 1.99-4.43 0.000
   Too fat 0.28 0.14-0.54 0.000 2.20 1.25-3.87 0.006 0.28 0.16-0.48 0.000
   Right weight 1.00 reference reference 1.00 reference reference 1.00 reference reference
Symptoms of an eating disorder         
   Conspicuous 0.78 0.52-1.18 0.241 not significant in
the univariate model
not significant in
the univariate model
   Inconspicuous 1.00 reference reference       
Sexual maturation          
   Tanner 1        2.48 1.20-5.13 0.014
   Tanner 2-3 not significant in
the univariate model
not significant in
the univariate model
2.40 1.46-3.94 0.001
   Tanner 4-6        1.00 reference reference
SES          
   Per index point 1.06 1.01-1.11 0.021 not significant in
the univariate model
not significant in
the univariate model
Migrant background         
   Migrant not significant in
the univariate model
2.36 1.28-4.34 0.006 not significant in
the univariate model
   Non-migrant     1.00 reference reference    
Parental overweight         
   Both 0.47 0.28-0.82 0.007 4.16 1.75-9.88 0.001 0.49 0.28-0.86 0.013
   One 0.64 0.38-1.06 0.085 2.71 1.18-6.24 0.019 0.84 0.58-1.21 0.343
   None 1.00 reference reference 1.00 reference reference 1.00 reference reference
Pseudo R 2 0.077 0.083 0.122
  1. Model 2a includes all overweight individuals, with the target variable 'overweight misclassified by self-reports as normal weight or underweight' (n = 77 individuals misclassified).
  2. Model 2b includes all normal weight individuals, with the target variable 'normal weight misclassified by self-reports as overweight' (n = 42 individuals misclassified).
  3. Model 2c includes all normal weight individuals, with the target variable 'normal weight misclassified by self-reports as underweight' (n = 81 individuals misclassified).