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Impact of Overweight, Obesity, and Lifestyle Changes on Work Performance and Well-Being in Medical Residents (OBESIT-A)

Observational Study on the Impact of Overweight and Obesity and Lifestyle Changes on Work Performance and Well-being

The goal of this observational study is to evaluate the impact of overweight, obesity, and lifestyle changes on work performance, work ability, quality of life, and overall well-being in medical residents working in hospital and university settings. The main questions it aims to answer are:

  • Is overweight and obesity associated with reduced work productivity, including absenteeism, presenteeism, and perceived work ability?
  • Is overweight and obesity associated with lower health-related quality of life, psychological well-being, and worker well-being?
  • Do lifestyle improvements and clinically significant weight loss over a 12-month period lead to measurable improvements in work productivity, work ability, quality of life, and well-being?
  • Do changes in physical health, mental health, and organizational factors mediate the relationship between weight loss and occupational outcomes? Participants will undergo assessments at baseline and after 12 months of follow-up. Researchers will evaluate associations between body weight status, health outcomes, and occupational performance over time.

Participants will: Attend occupational health surveillance visits at baseline and at 12 months. Undergo anthropometric measurements, including body mass index (BMI), waist circumference, and blood pressure assessment.

Provide blood samples for routine laboratory evaluation, including metabolic, cardiovascular, inflammatory, and hematological parameters.

Complete validated questionnaires assessing health-related quality of life (SF-12), work ability (Work Ability Index), work productivity and activity impairment (WPAI), fatigue (Fatigue Severity Scale), psychological well-being (PGWBI), mental health (DASS-21), worker well-being (NIOSH WellBQ), and resilience (CD-RISC). Provide information on sociodemographic characteristics, lifestyle habits, medical history, occupational characteristics, and work-related exposures.

The study will estimate the prevalence of overweight and obesity in a cohort of medical residents and investigate their association with occupational and health-related outcomes. Longitudinal analyses will examine whether changes in lifestyle behaviors and body weight are associated with changes in productivity, absenteeism, presenteeism, work ability, quality of life, and well-being over a 12-month observation period. The study will also explore potential mechanisms linking weight status and occupational outcomes, including physical health, psychological health, and organizational factors.

Panoramica dello studio

Stato

Reclutamento

Condizioni

Intervento / Trattamento

Tipo di studio

Osservativo

Iscrizione (Stimato)

600

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Luoghi di studio

    • RM
      • Rome, RM, Italia, 00168
        • Reclutamento
        • Fondazione Policlinico Universitario A. Gemelli IRCCS
        • Contatto:

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Bambino
  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Metodo di campionamento

Campione non probabilistico

Popolazione di studio

The study population consists of male and female medical residents (physicians in specialty training) actively working in hospital and university healthcare settings and undergoing routine occupational health surveillance at the Occupational Medicine Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy. Participants will be evaluated for body weight status, lifestyle factors, quality of life, psychological well-being, work ability, and work productivity at baseline and after 12 months of follow-up.

Descrizione

Inclusion Criteria:

  • Male and female medical residents (physicians in specialty training).
  • Actively working in hospital or university healthcare settings at the time of enrollment.
  • Willing and able to participate in baseline and 12-month follow-up assessments.
  • Provision of written informed consent for study participation and processing of personal data.

Exclusion Criteria:

  • Pregnancy at baseline or occurring during the follow-up period.
  • Presence of severe clinical conditions that significantly impair work ability or performance, including active cancer treatment, unstable cardiovascular disease, major neurological disorders, or diabetes mellitus.
  • Inability or unwillingness to complete study assessments.
  • Refusal or withdrawal of informed consent.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

Coorti e interventi

Gruppo / Coorte
Intervento / Trattamento
Medical Residents Cohort
Male and female medical residents undergoing occupational health surveillance, evaluated for body weight status, lifestyle factors, quality of life, well-being, work ability, and work productivity at baseline and after 12 months of follow-up.
Participants will not receive any study-specific intervention. The study is observational and evaluates body weight status, including normal weight, overweight, and obesity, as well as changes in lifestyle behaviors and body weight over a 12-month follow-up period. Associations between these factors and work productivity, work ability, quality of life, psychological well-being, and overall worker well-being will be assessed through clinical evaluations, laboratory testing, and validated questionnaires.
No Intervention (Observational Assessment)

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Prevalence of Overweight and Obesity
Lasso di tempo: Baseline
Prevalence of overweight and obesity among medical residents, assessed using standardized anthropometric measurements including body mass index (BMI) and waist circumference. Participants will be classified according to BMI categories (normal weight, overweight, and obesity) to estimate the burden of excess body weight in the study population.
Baseline

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in Work Productivity and Activity Impairment From Baseline to 12 Months
Lasso di tempo: Baseline and 12 months
Change in work productivity and activity impairment will be assessed using the Work Productivity and Activity Impairment Questionnaire (WPAI). Outcomes will be reported as percentages from 0% to 100%, including absenteeism, presenteeism, overall work productivity impairment, and activity impairment. Higher percentages indicate greater impairment and worse productivity.
Baseline and 12 months
Change in Work Ability From Baseline to 12 Months
Lasso di tempo: Baseline and 12 months
Change in work ability will be assessed using the Work Ability Index (WAI). The total score ranges from 7 to 49 points, with higher scores indicating better work ability.
Baseline and 12 months
Change in Health-Related Quality of Life From Baseline to 12 Months
Lasso di tempo: Baseline and 12 months
Change in health-related quality of life will be assessed using the 12-Item Short Form Health Survey (SF12). Physical and mental component scores will be reported separately. Scores range from 0 to 100, with higher scores indicating better health-related quality of life.
Baseline and 12 months
Change in Psychological General Well-Being From Baseline to 12 Months
Lasso di tempo: Baseline and 12 months
Change in psychological well-being will be assessed using the Psychological General Well-Being Index (PGWBI). The total score ranges from 0 to 110, with higher scores indicating better psychological well-being.
Baseline and 12 months
Change in Depression, Anxiety, and Stress Symptoms From Baseline to 12 Months
Lasso di tempo: Baseline and 12 months
Change in mental health symptoms will be assessed using the Depression Anxiety Stress Scales-21 (DASS21). Depression, anxiety, and stress subscale scores will be reported separately. Each subscale score ranges from 0 to 42 after multiplication by 2, with higher scores indicating greater symptom severity.
Baseline and 12 months
Change in Fatigue Severity From Baseline to 12 Months
Lasso di tempo: Baseline and 12 months
Change in fatigue severity will be assessed using the Fatigue Severity Scale (FSS). The total score ranges from 9 to 63, with higher scores indicating greater fatigue severity.
Baseline and 12 months
Change in Worker Well-Being From Baseline to 12 Months
Lasso di tempo: Baseline and 12 months
Change in worker well-being will be assessed using the National Institute for Occupational Safety and Health Worker Well-Being Questionnaire. Domain scores will be reported separately according to the questionnaire scoring instructions. Higher scores will indicate better worker well-being, unless otherwise specified for individual domains.
Baseline and 12 months

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Investigatori

  • Investigatore principale: Ivo Iavicoli, Professor, Fondazione Policlinico Gemelli IRCCS - Roma

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

26 giugno 2026

Completamento primario (Stimato)

15 giugno 2028

Completamento dello studio (Stimato)

30 giugno 2028

Date di iscrizione allo studio

Primo inviato

8 giugno 2026

Primo inviato che soddisfa i criteri di controllo qualità

25 giugno 2026

Primo Inserito (Effettivo)

1 luglio 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

8 settembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

4 settembre 2026

Ultimo verificato

1 giugno 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • 27283

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .