Personalized group cognitive behavioural therapy for obesity: a longitudinal study in a real-world clinical setting
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Severe obesity is difficult to treat, and non-surgical treatment is not supported by robust evidence. The aim of the present study was to establish the immediate and longer-term outcomes following “personalized” form of group cognitive behavioural therapy for obesity (CBT-OB)—a new treatment designed to address specific cognitive processes that have been associated with attrition, weight loss, and weight maintenance in previous studies.
Sixty-seven adult patients with obesity (body mass index (BMI) ≥ 30 kg/m2) were recruited from consecutive referrals to an Italian National Health Service obesity clinic. Each patient was offered 22 group sessions of CBT-OB (14 in the 6-month weight-loss phase and 8 in the subsequent 12-month weight-maintenance phase).
76.2% patients completed the treatment, with an average weight loss of 11.5% after 6 months (10% in the intention-to-treat analysis) and 9.9% (7.5% in the intention-to-treat analysis) after 18 months. Weight loss was associated with a significant reduction in cardiovascular risk factors, anxiety, depression, and eating disorder psychopathology, and an improvement in obesity-related quality of life.
These findings provide strong preliminary support for the use of CBT-OB for obesity in standard clinical settings, and justify its further evaluation in randomized controlled trials.
Level of evidence
Level III, longitudinal cohort study.
KeywordsObesity Lifestyle modification Cognitive behavioural therapy Group therapy Weight loss Weight maintenance Attrition
Compliance with ethical standards
Conflict of interest
Hereby authors state that they have no conflict of interest to declare.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all those who participated in the study.
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