Lupus & antiphospholipid syndrome

Potential protective role of high Mediterranean diet adherence for systemic lupus erythematosus: mediation by liver and kidney function biomarkers in the UK Biobank cohort

Rheumatology (Oxford)Published Prospective cohort study

Main finding · SLE riskResult — go to the resultHazard ratio 0.61 95% CI 0.374–0.995

Authors' conclusion

High adherence to the MD is significantly associated with a reduced risk of developing SLE. This beneficial effect may be partially mediated by improvements in liver and kidney function biomarkers

Study context

Population
UK Biobank participants free of SLE at baseline127 SLE cases
Participants
203,119 participants
Exposure
High and moderate vs low adherence to the Mediterranean diet
Outcome
Incident SLE
Methodological detailsCox proportional hazards regression, mediation analysis
  • Cox proportional hazards regression
  • Mediation analysis

Main finding

SLE risk · median follow-up 10.6 years

Hazard ratio

0.61

95% CI 0.374–0.995

High and moderatevs low adherence to the Mediterranean diet (MEDAS score)
HR 0.61 (95% CI 0.374–0.995)

As reported in the abstract

Observational data: associations, not effects.

Further findings

Mediation by liver and kidney function biomarkers

Mediation proportions
0.32% to 4.61%
  • Protective effect might be partially mediated

Original publication

Potential protective role of high Mediterranean diet adherence for systemic lupus erythematosus: mediation by liver and kidney function biomarkers in the UK Biobank cohort. Rheumatology (Oxford). Published 24 June 2025. doi:10.1093/rheumatology/keaf348

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