Excess abdominal fat is associated with cutaneous allodynia in individuals with migraine: a prospective cohort study
Abstract
Objective To investigate the specific relationship between cutaneous allodynia (CA) and the percentages of body fat (BF) and abdominal fat in migraineurs. Additionally, we compared serum levels of inflammatory biomarkers in patients with and without CA. Background Excess abdominal fat might facilitate progressive changes in nociceptive thresholds causing central sensitization, clinically reflected as CA, which could drive migraine progression. Methods This prospective cohort study included 80 patients with migraine (mean age 39 years, 81.2% female) and 39 non-migraine controls. We analysed each participant’s height, body weight, and body mass index (BMI). The amount and distribution of BF was also assessed by air displacement plethysmography (ADP) and ViScan, respectively. We analysed serum levels of markers of inflammation, during interictal periods. Results We studied 52 patients with episodic migraine (EM) and 28 with chronic migraine (CM). Of the 80 patients, 53 (53.8%) had CA. Migraineurs with CA had a higher proportion of abdominal fat values than patients without CA ( p = 0.04). The independent risk factors for CA were the use of migraine prophylaxis (OR 3.26, 95% CI [1.14 to 9.32]; p = 0.03), proportion of abdominal fat (OR 1.13, 95% CI [1.01 to 1.27]; p = 0.04), and presence of sleep disorders (OR 1.13, 95% CI [00.01 to 1.27]; p = 0.04). The concordance correlation coefficient between the ADP and BMI measurements was 0.51 (0.3681 to 0.6247). CA was not correlated…
How strong is the evidence?
Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 80 participants or records.
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