Short- and Long-Term Effects of Inpatient Cognitive-Behavioral Treatment of Adolescents With Anxious-Depressed School Absenteeism: A Within-Subject Comparison of Changes

The effects of inpatient treatment, including manual-guided cognitive-behavioral treatment (CBT), were examined for 36 adolescents (12–18 years) with chronic school absenteeism and mental health problems. Using a within-subject control group design, no changes were noted during the untreated waiting period, whereas there was a strong, statistically significant reduction in school absence rates and mental health problems from the start to the end of inpatient treatment. At discharge, 88.9% of adolescents attended school regularly or were employed (86.1 and 63.9% at 2- and 9-months follow-up, respectively). Self- and parent-reported mental health problems were significantly reduced during treatment and remained stable during follow-up.