Demographic and socioeconomic characteristics, duration of disease and subtypes of anorexia nervosa of the anorexia nervosa study population.

<p>Statistical analyses: Normal distribution was determined by Kolmogorov-Smirnov test. Differences between groups:</p><p>^a Mann-Whitney-U-test, data expressed as median (25^th percentile/75^th percentile)</p><p>^b t-test, data expressed as mean ± standard deviation</p><p>^c χ²-tests.</p><p>Demographic and socioeconomic characteristics, duration of disease and subtypes of anorexia nervosa of the anorexia nervosa study population.