The association between headache and low back pain: a systematic review
To systematically review studies quantifying the association between primary chronic headaches and persistent low back pain (LBP), the authors searched five electronic databases. They included case-control, cross-sectional and cohort studies that included a headache and back pain free group, reporting on any association between persistent LBP and primary headache disorders. Methodological quality was assessed using Newcastle-Ottawa Scale. The primary outcome was the association between primary headache disorders and persistent LBP. The secondary outcomes were any associations between severity of LBP and severity of headache, and the relationship between specific headache sub-types classified as per International Classification of Headache Disorders (ICHD) criteria and persistent LBP … MORE