Volume 16 Supplement 1
O032. Associations between any headache and obesity: results from a systematic review and meta-analysis of observational studies
© Degan et al. 2015
Published: 28 September 2015
Data about the association between migraine and obesity are controversial, but a recent meta-analysis showed an association between the two conditions. As numerous studies addressing the possible association between any headache (including migraine) and obesity have provided conflicting findings[2, 3], we therefore performed a systematic review and meta-analysis of observational studies, to assess the associations between any headache and obesity and pre-obesity.
Materials and methods
Data were obtained through multiple electronic databases up to April 2015, using the terms “migraine" OR “headache” in combination with “obesity" OR “pre-obesity" OR “body mass index”. Out of 2,022 records, we finally included 4 studies[4–7]. We obtained pooled adjusted effect estimates (PAEE) of the risk of having any headache in obese and pre-obese subjects versus normal weight subjects, and in obese and pre-obese women versus normal-weight women. To obtain PAEE the natural logarithm of each single estimate was weighed by the inverse of its variance. Only studies written in the English language reporting a clearly, unequivocal definition of exposure and outcome variables were included. To reduce methodological heterogeneity we performed our analyses including only the studies which defined BMI categories according to the World Health Organization (WHO) criteria for Western populations (underweight, <18.50 kg/m2; normal range, 18.50 - 24.99 kg/m2; overweight, ≥25.00 kg/m2; pre-obesity, 25.00 - 29.99 kg/m2; obesity, ≥30.00 kg/m2).
We found an increased risk of any headache in obese versus normal-weight subjects in 3 studies[5–7]; overall PAEE 1.29, (95% confidence interval [CI] 1.04-1.60; p = 0.022); in obese versus normal-weight women in 2 studies[4, 5]; overall PAEE 1.41, (95% CI 1.23-1.62; p < 0.001) and in pre-obese versus normal-weight women in 2 studies[4, 5]; overall PAEE 1.13, (95% CI 1.01-1.25; p = 0.025). When considering pre-obese versus normal-weight subjects in 3 studies[5–7], we did not find an increased risk of any headache (overall PAEE 1.06, 95% CI 0.94-1.18; p = 0.335).
The meta-analysis of the available observational studies suggested an association between any headache and obesity, that was stronger in the female gender, and between any headache and pre-obesity in the female gender; these results are in line with the previous meta-analysis findings.
- Ornello R, Ripa P, Pistoia F, Degan D, et al: Migraine and body mass index categories: a systematic review and meta-analysis of observational studies. J Headache Pain. 2015, 16: 27-PubMed CentralView ArticlePubMedGoogle Scholar
- Bond DS, Roth J, Nash JM, Wing RR: Migraine and obesity: epidemiology, possible mechanisms and the potential role of weight loss treatment. Obes Rev. 2011, 12: e362-e371. 10.1111/j.1467-789X.2010.00791.x.PubMed CentralView ArticlePubMedGoogle Scholar
- Chai NC, Scher AI, Moghekar A, Bond DS, Peterlin BL: Obesity and headache: part I - a systematic review of the epidemiology of obesity and headache. Headache. 2014, 54: 219-234. 10.1111/head.12296.PubMed CentralView ArticlePubMedGoogle Scholar
- Brown WJ, Mishra G, Kenardy J, Dobson A: Relationships between body mass index and well-being in young Australian women. Int J Obes Relat Metab Disord. 2000, 24: 1360-1368. 10.1038/sj.ijo.0801384.View ArticlePubMedGoogle Scholar
- Ford ES, Li C, Pearson WS, Zhao G, Strine TW, Mokdad AH: Body mass index and headaches: findings from a national sample of US adults. Cephalalgia. 2008, 28: 1270-1276. 10.1111/j.1468-2982.2008.01671.x.View ArticlePubMedGoogle Scholar
- Molarius A, Tegelberg A, Ohrvik J: Socio-economic factors, lifestyle, and headache disorders - a population-based study in Sweden. Headache. 2008, 48: 1426-1437. 10.1111/j.1526-4610.2008.01178.x.View ArticlePubMedGoogle Scholar
- Wright LJ, Schur E, Noonan C, Ahumada S, Buchwald D, Afari N: Chronic pain, overweight, and obesity: findings from a community-based twin registry. J Pain. 2010, 11: 628-635. 10.1016/j.jpain.2009.10.004.PubMed CentralView ArticlePubMedGoogle Scholar
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