An observational study in Obesity, Bariatric Surgery Candidate and Halitosis, sponsored by University of Nove de Julho. Not yet recruiting. Open to participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2025-09-16.
Sponsored by University of Nove de Julho · Observational
This study aims to evaluate psychological distress, sleep quality, and halitosis in obese patients during the preoperative period of bariatric surgery. A total of 110 adults will be assessed using validated questionnaires and a portable halitosis detector. The results may contribute to improving strategies for comprehensive care in this population.
This is an observational, cross-sectional study designed to assess the prevalence of psychological distress, sleep quality, and halitosis in obese patients who are candidates for bariatric surgery in the metropolitan region of Santos, Brazil. Participants (n=110) will be recruited during the preoperative assessment period at the Interprofessional Outpatient Clinic of Universidade Metropolitana de Santos (UNIMES).
Psychological distress will be measured using the Depression, Anxiety, and Stress Scale (DASS-21). Sleep quality will be evaluated with the Pittsburgh Sleep Quality Index (PSQI-BR). Halitosis will be assessed by clinical anamnesis, lingual coating index, and a KKCare Portable Detector.
The main outcomes are the prevalence of stress, anxiety, and depression; the prevalence of poor sleep quality; and the prevalence of halitosis in this patient population. The study will also investigate possible associations between these psychosocial and oral health variables. Data will be analyzed using descriptive statistics and binary logistic regression.
The findings are expected to support strategies to improve multidisciplinary care and enhance the quality of life of obese patients preparing for bariatric surgery.
Obese adult patients in the metropolitan region of Santos, Brazil, who are undergoing multidisciplinary assessment in preparation for bariatric surgery within the Brazilian public health system (SUS).
Exclusion Criteria:
Individuals who refuse or withdraw consent
Prevalence of psychological distress (stress, anxiety, and depression)
Psychological distress will be measured using the Depression, Anxiety, and Stress Scale - short form (DASS-21), validated for Portuguese. The scale consists of 21 items equally distributed among depression, anxiety, and stress domains. Scores will be classified according to standardized cutoff points.
Time frame: Baseline
Prevalence of halitosis in obese patients before bariatric surgery
Halitosis will be evaluated by clinical anamnesis, lingual coating index, and KKCare Portable Detector, which measures volatile sulfur compounds and provides classification across five levels of halitosis severity.
Time frame: Baseline
No study locations are listed for this record.
This study is not yet recruiting, as verified in Sep 2025. You cannot join it, but the record below documents what was studied.
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University of Nove de Julho