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Journal of Gastroenterology

, Volume 46, Issue 12, pp 1403–1410 | Cite as

Lifestyle and psychological factors related to irritable bowel syndrome in nursing and medical school students

  • Yukiko Okami
  • Takako Kato
  • Gyozen Nin
  • Kiyomi Harada
  • Wataru Aoi
  • Sayori Wada
  • Akane HigashiEmail author
  • Yusuke Okuyama
  • Susumu Takakuwa
  • Hiroshi Ichikawa
  • Motoyori Kanazawa
  • Shin Fukudo
Original Article—Alimentary Tract

Abstract

Background

Irritable bowel syndrome (IBS) is a functional gastrointestinal disorder comprising abdominal pain, abdominal discomfort, and disordered defecation. The prevalence of IBS is 10–15% in the general population. This study investigated the prevalence of IBS and the relationship between IBS and stress, lifestyle, and dietary habits among nursing and medical school students.

Methods

A blank self-administrated questionnaire was used to survey 2,639 students studying nursing or medicine. This questionnaire asked about IBS symptoms, lifestyle, dietary intake, life events, anxiety, and depression. The questionnaires were collected from 2,365 students (89.6%) and the responses of 1,768 students (74.8%) were analyzed.

Results

The prevalence of IBS was 35.5% as a whole, 25.2% in males and 41.5% in females. Significantly higher stress scores (anxiety and depression) and life events were found in the IBS group than in the non-IBS group. Sleep disorders and the time spent sitting were also higher in males with IBS. In the IBS group, females ate less fish, fruit, milk, and green-yellow vegetables, and more processed food products than the non-IBS group (p = 0.001, p = 0.002, p = 0.032, p = 0.037, p < 0.001). The rates of missed meals and irregular mealtimes were significantly higher in females in the IBS group (p = 0.001, p = 0.013).

Conclusions

The prevalence of IBS was higher among nursing and medical students, and further interventional studies are needed to improve IBS symptoms.

Keywords

Irritable bowel syndrome Nursing school Lifestyle Food frequency Dietary habits 

Abbreviations

BMI

Body mass index

HADS

Hospital anxiety and depression scale

HAD-A

HADS subscale for anxiety

HAD-D

HADS subscale for depression

GI

Gastrointestinal

IBS

Irritable bowel syndrome

IBS-A

Alteration-type IBS

IBS-C

Constipation-predominant IBS

IBS-D

Diarrhea-predominant IBS

METS

Metabolic equivalents

SD

Standard deviation

Notes

Acknowledgments

We would like to thank the nursing and medical schools that collaborated in this research. The present members of these schools and their affiliations are as follows (in no particular order): T. Yamauchi, Nissei High School; S. Matsuo, Japan Baptist School of Nursing; H. Watanabe, S. Ikenishi, H. Yamamuro, and K. Ishizuka, Kyoto Central Nursing School; E. Maeda, Kyoto St. Catalina High School; S. Hojo, Rakuwakai Kyoto Nursing School; C. Tanaka, Kyoto Second Red Cross Nursing School; N. Tsujimoto, Kyoto Katsura Nursing School; Y. Kimura, Kyoto Prefectural Nursing School; C. Takegami and K. Oshima, Nantan Nurse College; M. Oka, Kyoto College of Health and Hygiene; N. Masuda, The Nursing School of Kyoto Medical Association; T. Komatsu, Kyoto First Red Cross Nursing School; C. Nonaka, Kinki Nursing School; Y. Matsumoto, Maizuru Medical Center Attached School of Nursing; S. Abe, Ibaraki Prefectural University of Health Sciences; M. Koizumi, Fujita Health University; T. Sasai and K. Toyama, Kyoto College of Medical Technology; S. Nakanishi, Suzuka University of Medical Science; I. Kawashita, Hiroshima International University; and H. Tateuchi, Kyoto Univerisity.

Conflict of interest

This report has not been submitted to any other publication. The authors hereby declare that there is no conflict of interest.

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Copyright information

© Springer 2011

Authors and Affiliations

  • Yukiko Okami
    • 1
    • 2
  • Takako Kato
    • 3
    • 4
  • Gyozen Nin
    • 2
  • Kiyomi Harada
    • 5
  • Wataru Aoi
    • 5
  • Sayori Wada
    • 5
  • Akane Higashi
    • 5
    Email author
  • Yusuke Okuyama
    • 6
  • Susumu Takakuwa
    • 7
  • Hiroshi Ichikawa
    • 2
    • 8
  • Motoyori Kanazawa
    • 9
  • Shin Fukudo
    • 9
  1. 1.Department of Health and NutritionNagoya Bunri UniversityNagoyaJapan
  2. 2.Ex-Graduate School of Life and Environmental SciencesKyoto Prefectural UniversityKyotoJapan
  3. 3.Watanabe ClinicTokyoJapan
  4. 4.Ex-Department of Food Sciences and Nutritional HealthKyoto Prefectural UniversityKyotoJapan
  5. 5.Graduate School of Life and Environmental SciencesKyoto Prefectural UniversityKyotoJapan
  6. 6.Department of GastroenterologyKyoto First Red Cross HospitalKyotoJapan
  7. 7.Department of EducationKyoto Women’s UniversityKyotoJapan
  8. 8.Department of Medical Life Systems, Faculty of Life and Medical SciencesDoshisha UniversityKyotoJapan
  9. 9.Department of Behavioral MedicineTohoku University Graduate School of MedicineSendaiJapan

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