Int J Med Sci. 2020 Sep 9;17(16):2487-2495. doi: 10.7150/ijms.49314. eCollection 2020.

Katrine Hass Rubin ¹, Nathalie Fogh Rasmussen ², Inge Petersen ¹, Tine Iskov Kopp ^3 4, Egon Stenager ^5 6, Melinda Magyari ^4 7, Merete Lund Hetland ^8 9, Anette Bygum ^10 11, Bente Glintborg ^8 9, Vibeke Andersen ^2 12 13

Author information

• ¹OPEN - Open Patient data Explorative Network, Department of Clinical Research, University of Southern Denmark, and Odense University Hospital, Odense Denmark.
• ²Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Sonderjylland, Hospital of Southern Jutland, Aabenraa, Denmark.
• ³Danish Cancer Society Research Centre, Copenhagen, Denmark.
• ⁴The Danish Multiple Sclerosis Registry, Department of Neurology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmarkarch, University of Southern Denmark, Odense.
• ⁵MS clinic of Southern Jutland (Sønderborg, Esbjerg, Kolding) University Hospital of Southern Jutland, DK-6200 Aabenraa, Denmark.
• ⁶Department of Regional Health Research, University of Southern Denmark, DK-5000 Odense C, Denmark.
• ⁷National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark.
• ⁸The DANBIO registry and Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Center of Head and Orthopaedics, Rigshospitalet, Glostrup, Denmark.
• ⁹Department of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen.
• ¹⁰Department of Clinical Genetics, Odense University Hospital, Odense, Denmark; University of Southern Denmark, Odense, Denmark.
• ¹¹Research Unit of Dermato-Venerology, Institute of Clinical Research, University of Southern Denmark, Odense, Denmark.
• ¹²Institute of Clinical Research, University of Southern Denmark, Odense, Denmark.
• ¹³Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark.

Abstract

Background: Human and animal studies support the involvement of diet in the development of CID -chronic inflammatory diseases such as inflammatory bowel disease, psoriasis, rheumatoid arthritis, psoriatic arthritis, and multiple sclerosis. Objective: This cohort study aimed to investigate the association between intake of fibre, red and processed meat, and occurrence of late-onset CID (50+ years of age) in the DCH: Danish Diet, Cancer and Health cohort. We hypothesised that risk of late-onset CID would be lower among those with high intake of fibre and/or low intake of meat compared to individuals with low fibre and/or high meat intake. Methods:The DCH recruited 56,468 individuals, aged 50-64 years, between 1993 and 1997. At recruitment, diet intake was registered using food frequency questionnaires as well as lifestyle factors in 56,075 persons. Exposure variables were generated as sex-adjusted tertiles of fibre and meat (g/day). Development of CIDs was identified in national registries. Hazard ratios (HR) of late-onset CIDs (adjusted for age, sex, energy intake, alcohol, smoking, education, comorbidity, and civil status) were estimated for all three exposure variables. Results: During follow-up of 1,123,754 years (median (Interquartile range) = 22.2 (20.1-23.1)), 1,758 (3.1%) participants developed at least one CID. The adjusted HRs for developing CID (low fibre 1.04 [0.89-1.22] and medium fibre 1.04 [0.91-1.18] (high fibre as reference), and medium meat 0.96 [0.86-1.09] and high meat 0.94 [0.82-1.07] (low meat as reference)) or the individual diseases were not statistically significant. Conclusion:This large study did not support that a high intake of fibre and/or a low intake of meat had a high impact on the risk of late-onset CID.