Psychological characteristics of patients from obesity treatment program in Gdańsk

Obesity is rarely a simple matter of calories in and calories out, and a new study from Poland offers a detailed psychological portrait of what patients actually bring with them when they walk through the doors of a hospital obesity treatment program. Researchers at the Medical University of Gdansk and the University Clinical Center in Gdansk assessed 572 consecutive patients enrolled in the obesity treatment program at the University Clinical Center, 364 of them women and 208 men, using a battery of validated psychometric instruments. Their goal was not merely to catalog distress but to identify measurable psychological characteristics that could serve as targets for psychotherapeutic intervention, an increasingly urgent task as health systems worldwide struggle to deliver obesity care that addresses the mind as well as the metabolism.

The methodology behind the study reflects a growing consensus in behavioral medicine that obesity treatment outcomes depend heavily on psychological context. Each participant completed six standardized questionnaires: the Self Esteem Scale, which measures global self-worth; the Body Esteem Scale, which captures satisfaction with one’s own body and its specific attributes; the Eating Attitudes Test, a widely used screen for disordered eating attitudes and behaviors; the General Self-Efficacy Scale, which quantifies a person’s belief in their capacity to execute the behaviors needed to manage difficult situations; the Depression Anxiety Stress Scale, which indexes symptoms across those three negative emotional states; and the Short Form Health Survey, the gold-standard instrument for assessing self-reported quality of life and functional health status. Because the patients were enrolled consecutively, the sample offers an unusually unfiltered snapshot of the population that actually presents for treatment, rather than a hand-picked cohort of ideal candidates.

One of the most striking findings concerns treatment preferences. Patients who preferred surgical treatment were more likely to be younger, to have a higher body mass index, and to report greater consumption of highly processed and palatable food. This constellation makes intuitive sense: younger patients with more severe obesity and eating patterns dominated by hyperpalatable, energy-dense products may perceive lifestyle-based interventions as insufficient to the scale of their problem. But it also flags a clinically important subgroup, since heavy consumption of highly processed food and a preference for the most invasive option may coincide with eating behaviors that surgery alone will not resolve. Preoperative psychological profiling is standard practice in bariatric programs, and data like these help clinicians understand what patterns are already present before any scalpel is lifted.

Perhaps the single most consequential number in the study is this: 63.6 percent of participants reported emotional eating, the tendency to eat in response to negative emotions rather than physiological hunger. Notably, emotional eating was correlated with depressive symptoms but not with BMI itself. That dissociation matters. It suggests that emotional eating operates as a psychological phenomenon with its own drivers, not simply as a behavioral manifestation of body weight. A patient with a lower BMI and severe emotional eating may face greater behavioral obstacles to treatment success than a heavier patient without it. If emotional eating is driven partly by depression, then treating mood symptoms could plausibly reduce maladaptive eating behavior, which is precisely the kind of mechanistic hypothesis that baseline profiling studies are designed to generate.

The quality of life data were equally sobering. Both quality of life and self-esteem in this patient population were lower than reference values established for the general population, a finding consistent with the substantial social stigma, functional limitation, and body dissatisfaction that accompany severe obesity. But the researchers went further, running predictive analyses to determine which variables independently explained reduced quality of life. Four factors emerged: higher age, greater body mass index, higher depressive and anxiety symptoms, and lower global self-esteem. The statistical independence of these predictors is important. It means that each contributes unique explanatory power, and that mood symptoms and self-esteem are not merely proxies for how heavy someone is. Two patients with identical BMI values can inhabit radically different subjective worlds depending on their depression, anxiety, and self-worth.

That insight carries direct implications for how obesity programs should be staffed and structured. The authors frame their results explicitly as the first step toward identifying psychological factors that correlate with obesity treatment outcomes, to be combined with follow-up data in order to design a tailored psychological intervention. In their assessment, quality of life, depressive and anxiety symptoms, emotional eating, and global self-esteem appear to be of the greatest importance. This is a deceptively practical list. It tells a program director which domains to measure at intake, which to monitor during treatment, and which to target therapeutically. A patient with depressed mood and low self-esteem may need cognitive behavioral work on self-criticism and mood regulation before behavioral weight management advice can gain traction; a patient dominated by emotional eating may benefit from emotion-regulation training or structured approaches to cue-driven eating.

The study also speaks to a larger shift in how obesity is understood. Over the past decade, leading medical bodies have increasingly framed obesity as a chronic, relapsing disease rather than a failure of willpower, and research on the neural and hormonal regulation of appetite has exposed how powerfully highly processed foods can hijack the brain’s reward circuitry. The Gdansk findings dovetail with this reframing at the psychological level. If nearly two-thirds of patients entering treatment eat in response to emotions, and if mood symptoms independently erode quality of life, then obesity treatment that ignores affective psychology is treating half the disease. Conversely, the study implicitly warns against over-psychologizing: BMI itself remained an independent predictor of quality of life, reminding clinicians that the physical burden of excess weight has consequences that no amount of mood therapy will erase.

Ethically and logistically, the study was designed as part of standard clinical care rather than as an intrusive research protocol. The Independent Bioethics Committee at the Medical University of Gdansk waived the need for separate approval, the study was conducted in accordance with the Declaration of Helsinki, and because the questionnaires were part of routine diagnostics and the data were anonymized, no additional consent was required beyond the consent patients gave for their clinical care. The authors declared no competing interests and received no dedicated funding for the study, though manuscript preparation was supported during a clinical research training program at Harvard Medical School organized by Poland’s Medical Research Agency. The authors also disclosed that they used AI-assisted tools for minor language editing only, with all analyses and interpretations developed by the researchers themselves.

What makes this research potentially viral in its implications is the sheer scale of the problem it addresses. More than a billion people worldwide now live with obesity, and the limitations of pharmacological and surgical treatment, however dramatic recent advances have been, are increasingly clear: medications must often be taken indefinitely, surgery requires lifelong nutritional management, and weight regain remains common across all modalities. Psychological characteristics that predict who struggles and who succeeds could change the calculus entirely. The Gdansk dataset, gathered at the moment of treatment entry, will be joined by longitudinal follow-up data to test whether baseline emotional eating, depression, anxiety, self-esteem, and quality of life actually forecast outcomes, the essential next step from correlation to prediction.

For patients, the message is validating: the struggle with weight is not a character flaw, and the emotional dimensions of obesity are real, measurable, and treatable. For clinicians, it is a roadmap: measure mood, self-esteem, emotional eating, and quality of life at intake, and design interventions that address them directly. For researchers, it is a template for turning a large consecutive clinical sample into a foundation for personalized care. As the authors and their colleagues continue to follow these 572 patients, the field will be watching to see whether the psychological portrait drawn at the threshold of treatment can forecast what happens next, and whether tailored psychotherapy built on that portrait can improve the odds for millions of people whose battle with weight has always been, at least in part, a battle with their own minds.

Subject of Research: Psychological characteristics of patients from obesity treatment program in Gdańsk

Article Title: Psychological characteristics of patients from obesity treatment program in Gdańsk

Article References: Bochenek-Styrylska, P., Grabowski, K., Hoffmann, M., & Kiwnik-Dahm, A. (2026). Psychological characteristics of patients from obesity treatment program in Gdańsk. Discover Psychology. https://doi.org/10.1007/s44202-026-00874-6

Image Credits: AI Generated

DOI: 10.1007/s44202-026-00874-6

Keywords: Psychological, characteristics, patients, obesity, treatment, program, scientific research