Association of stress and functional gastrointestinal disorders in high school graduates.

Background: Psychosocial factors are seemed as important causes of functional gastrointestinal disorders (FGIDs). However, the role of stress in FGIDs in high school students under the pressure of college entrance examination is largely unknown. The aim of this study is to investigate the association between the stress and FGIDs in high school graduates.

Methods: A cross-sectional survey was conducted in randomly selected high school fresh graduates. Questionnaires concerned health condition, living habits, gastrointestinal symptoms and life stress were given out and be finished voluntarily. Participants were diagnosed as FGIDs based on the Rome IV criteria.

Results: Stress level of FGIDs population was higher than control group and stress was independent predicted factor of high risk of FGIDs. The stressor "changes" was significantly correlated with functional gastroduodenal disorders (OR1.118(1.011-1.238)). Stressor "frustration" was significantly correlated with functional bowel disorders (OR1.038(1.006-1.071)). "Physiological reaction" was correlated with functional bowel disease and functional gastroduodenal disorders + functional bowel disorders (OR1.027(1.007-1.046) and OR1.055(1.000-1.113)). Students with more than one gastrointestinal symptom exhibited higher stress level. Moreover, there was mediation effect of stress in the association between gender, sleep quality, allergies and FGIDs.

Limitations: This was a cross-section study and the sample included in the study were only from Wuhan, China.

Conclusions: Our findings illustrated the predicted and mediated role of stress in FGIDs in high school fresh graduates. Different stressors and reactions to stressors contributed to different FGIDs. Intervening measures aimed at stress coping strategies were warranted for students in daily school life.