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J Dig Dis. 2016 Apr;17(4):236-43. doi: 10.1111/1751-2980.12330.

Psychological factors influence the overlap syndrome in functional gastrointestinal disorders and their effect on quality of life among firefighters in South Korea.

Author information

1
Department of Psychiatry, School of Medicine, Wonkwang University, Iksan, Korea.
2
Division of Gastroenterology, Department of Internal Medicine, School of Medicine, Wonkwang University, Iksan, Korea.

Abstract

OBJECTIVE:

The aim of this study was to investigate the predictor variables that could influence overlap syndrome in functional gastrointestinal disorders (FGID) among firefighters in Korea.

METHODS:

Data collected from 1217 firefighters in Korea were reviewed. FGID were diagnosed according to the Rome III diagnostic criteria. Psychological factors were measured by self-reported questionnaires. The scores for depression, anxiety, quality of life (QOL) and occupational job stress were analyzed. The correlation between psychological factors and QOL was analyzed and a stepwise multiple regression analysis was performed.

RESULTS:

FGID were observed in 461 (37.9%) participants. In those with FGID, functional heartburn (FH) was most common (32.2%), followed by functional dyspepsia (12.2%). Patients with overlap syndrome had the highest depression, anxiety and occupational stress score than those having non-overlap syndrome and healthy controls, respectively (depression: F = 142.29, η(2)  = 0.190; anxiety: F = 88.33, η(2)  = 0.127; occupational stress: F = 43.68, η(2)  = 0.067; all P < 0.001). Healthy controls had the highest QOL score (F = 73.39, P < 0.001, η(2)  = 0.108). Pychological factors were significantly correlated with QOL in the overlap syndrome of FGID. After the stepwise selection, the final model explained 45.6% of predictable variance and contained four significant variables: depression, self-esteem, occupational stress and anxiety.

CONCLUSIONS:

Psychological factors are associated with the overlap syndrome of FGID. Acknowledging this common comorbidity may facilitate the recognition and treatment of patients with FGID.

KEYWORDS:

anxiety; depression; functional gastrointestinal disorders; occupational job stress; overlap syndrome; quality of life

PMID:
26896638
DOI:
10.1111/1751-2980.12330
[Indexed for MEDLINE]

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