Prevention of Headache in Adolescents: Population-Attributable Risk Fraction for Risk Factors Amenable to Intervention

 

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Abstract

Introduction Several risk factors for headache have been identified, some of which are potentially amenable to interventions. The potential effect of such interventions can be predicted by the population-attributable risk fraction (PARF). We assessed PARFs of the the following risk factors: neck muscle pain, chronic stress, alcohol consumption, smoking, coffee consumption, and physical inactivity. We studied the maximal possible effect achievable by avoidance of these risk factors.

Methods Two approaches to estimate PARFs are compared, which assess their cumulative and individual impact of risk factors by age: the Levin formula and the average attributable fraction.

Results The overall impact for removal of all six risk factors amounts to 19.7% for the average attributable fraction. Neck tension and consumption of alcohol ranked as the strongest population-attributable risk factor for any headache. The potential impact for migraine was considerably higher (43.8%). With increasing age, the overall impact of risk factors on headache increases by 18.9%.

Conclusion Based on the estimations of the most appropriate approach, up to 20% of headaches in general and up to 43% of migraine in adolescents might be preventable by removing risk factors amenable to intervention, with increasing proportions by age.

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