Spondyloarthritis & psoriatic arthritis
Patients with radiographic axial spondylarthritis have an impaired dietary intake—a cross-sectional study with matched controls from northern Sweden
Authors' conclusion
Our results suggest that r-axSpA patients have an impaired dietary intake. Notably, intake was lower in several nutrients theorized to have anti-inflammatory properties (fiber density, marine-omega-3 fatty acids, vitamin D, and selenium).
Study context
- Population
- Radiographic axial spondyloarthritis (r-axSpA) patients at the rheumatology clinic in Region Västerbotten, northern Sweden, and population controls aged 50–64 years155 patients included
- Participants
- 81 vs 319
- Exposure
- r-axSpA patients vs matched controls without r-axSpA
- r-axSpAn = 81
- Controlsn = 319reference
- Outcome
- Dietary nutrient intake (semi-quantitative food frequency questionnaire MiniMeal-Q)
Methodological detailsmatched controls (4 per patient, on age ± 1 year, sex and geographic location), exact conditional logistic regression, adjusted
- Matched controls (4 per patient, on age ± 1 year, sex and geographic location)
- Exact conditional logistic regression, adjusted
Main finding
As reported in the abstract
Dietary nutrient intake, r-axSpA vs controls
- Significantly higher energy intake from carbohydrates in patients
- Lower fiber density in patients
- Lower intake of marine omega-3 fatty acids in patients
- Significantly lower intake of vitamins D, E, K, selenium, folate, calcium, magnesium, phosphorus, potassium, vitamin A and β-carotene in patients
- Adjusted for country of birth, educational level, single household, weight, smoking status, and energy intake
Observational data: associations, not effects.
Original publication
Patients with radiographic axial spondylarthritis have an impaired dietary intake—a cross-sectional study with matched controls from northern Sweden. Arthritis Res Ther. Published 7 August 2023. doi:10.
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