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BACKGROUND ICD9-3409), and self-reported MS diagnosis. Prospective associations between UPF consumption (as a percentage of total food intake in grams per day) and risk of MS onset were assessed using multivariable Cox proportional hazards models were adjusted for age, sex, ethnicity, education, Townsend deprivation index, smoking status, total energy intake and serum 25-hydroxyvitamin D. RESULTS: Participants had a mean age of 56.0 years (SD 8.0) and 54% were female. UPFs comprised 19.1% of total dietary grams intake, with carbonated drinks, ready-to- eat/heat meals and industrial-processed breads being the most consumed UPF subgroups. Over a mean follow-up of 8.9 years (SD: 2.7), 384 incident MS cases occurred. Each 10% increase in UPF consumption was associated with an estimated 9% increase in risk of MS (HR 1.09; 95% CI: 1.003 to 1.19; p-value = 0.04). CONCLUSION: This study found a weak yet significant association between higher UPF consumption and increased risk of MS in middle-aged and older adults. Given the modest effect size and inconsistency of statistical significance across sensitivity analyses, these findings should be interpreted with caution. Research to confirm these findings in other population groups and contexts is needed.
Vagner et al. (Mon,) studied this question.