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Table 1 Factor loadings for healthy and unhealthy latent factors

From: Identifying the ‘red flags’ for unhealthy weight control among adolescents: Findings from an item response theory analysis of a national survey

   Factor loadings
   Healthy Unhealthy
  Prevalence (%) Estimate S.E. Estimate S.E.
Vomited 7.8 -0.111 0.038 0.778 0.022
Diet pills 3.5 0.042 0.056 0.661 0.041
Smoked cigarettes 9 -0.232 0.038 0.527 0.034
Fasted 12.5 0.004 0.015 0.814 0.021
Skipped meals 31.4 0.004 0.018 0.775 0.021
Exercised 89.8 0.484 0.029 -0.238 0.035
Ate less fatty food 71.5 0.888 0.027 -0.019 0.02
Counted calories 7.7 0.422 0.03 0.319 0.041
Ate fewer sweets/less sugar 52.3 0.709 0.022 0.01 0.011
Ate fewer carbohydrates 18.5 0.571 0.024 0.26 0.036
Ate high protein diet 14.8 0.508 0.028 0.078 0.031
  1. Bold indicates significant p < 0.01.