(1) Background: the COVID-19 pandemic and subsequent confinements have led to a dramatic increase in anorexia nervosa (AN) in adolescent patients, whereas the effect on symptom severity and the influencing factors are not yet clear, especially not from the adolescents' perspective. (2) Methods: from February to October 2021, 38 adolescent patients with AN completed an adjusted version of the COVID Isolation Eating Scale (CIES), a self-report questionnaire asking for ED symptomatology before and during the COVID-19 pandemic and for their experiences with remote treatment. (3) Results: patients reported a significant negative impact of confinement on ED symptoms, depression, anxiety, and emotional regulation. During the pandemic, engagement with weight and body image was related to social media, and mirror checking increased. The patients were more preoccupied with cooking recipes and had more eating-related conflicts with their parents. However, the differences in the amount of engagement with social media actively glorifying AN before and during the pandemic did not remain significant after correction for multiple comparisons. The minority of patients who received remote treatment found it to be only limitedly helpful. (4) Conclusions: from the patients' perspective, the COVID-19 pandemic-associated confinement had a detrimental effect on the symptoms of adolescent patients with AN.
Keywords: COVID-19; adolescents; anorexia nervosa; eating disorder; remote treatment.