Course and Outcome of Anorexia Nervosa in Adolescents from a Tertiary-level Mental Health Setting in India: A Retrospective Chart Review

Background: Anorexia nervosa is one of the least studied mental health conditions in the Indian setting. The objective of this study was to assess the course and outcome of anorexia nervosa in adolescents who had presented to a tertiary care child and adolescent psychiatry center over a period of 10 years.Methods: The present study is a retrospective chart review of adolescents (up to the age of 18 years) with a diagnosis of anorexia nervosa, coded as F50.0 or F50.1 according to ICD 10, from 1st April 2009 to 31st March 2019. Data were extracted from the case records using standardized abstraction forms and evaluated using descriptive and nonparametric statistics.Results: The average age at presentation and the average age at onset were 14.1 years and 13.1 years, respectively. The male-to-female ratio of the sample who got admitted was 1:9. The average duration of hospital stay was about 30 days. The duration of in-patient care and weight gain were positively correlated, with severe to extremely ill adolescents improving even in less than one month of in-patient care. Seventy per cent of the admitted adolescents followed up. The functional outcome as measured by a 'return to school' improved in 57.1% of the sample.Conclusions: The present study highlights the collaborative multidisciplinary and individualized treatment approach employed for adolescents diagnosed with anorexia nervosa within an inpatient mental health facility in India. Adolescents who presented with more severe illness at the initial assessment, such as an early onset of symptoms and a low BMI, experienced substantial weight gain that exhibited a positive correlation with the length of their stay in the inpatient facility.