Factors associated with disability and impact of tension-type headache: findings of the Korean headache survey.

J Headache Pain · 2015 · PMC4434242 · PMID 25943683

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did not reach statistical significanceno p-value reported

Among variables of sociodemographic status, higher education level (only college or more education), compared to lower education level (high school or less) as the reference, was marginally associated with disability, but this did not reach statistical significance (OR: 2.34, 95% CI: 0.99–5.53).

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