Increased risk of strokes in patients with chronic low back pain (CLBP): A nationwide population-based cohort study

Hao-Chin Wang1, Yuan-Chih Su2, Hsiang-Ning Luk1

  • 1Department of Anesthesiology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan.

Insights

Chronic low back pain (CLBP) patients face a significantly higher risk of stroke, particularly ischemic stroke. This association, observed over an 8-year follow-up, was most pronounced in individuals under 50 years old.

Area of Science:

  • Neurology
  • Epidemiology
  • Pain Medicine

Background:

  • Longitudinal studies investigating the link between chronic low back pain (CLBP) and stroke risk are lacking.
  • Understanding potential risk factors for stroke is crucial for public health initiatives.

Purpose of the Study:

  • To investigate the association between chronic low back pain (CLBP) and the risk of experiencing a stroke.
  • To determine if CLBP is an independent risk factor for various types of stroke.

Main Methods:

  • A retrospective cohort study utilizing data from Taiwan's National Health Insurance database (2000-2010).
  • 10,308 CLBP patients were propensity score-matched with 20,616 non-low back pain (NLBP) controls.
  • Adjustments were made for age, gender, comorbidities, and non-steroidal anti-inflammatory drug (NSAID) usage.

Main Results:

  • CLBP patients exhibited significantly higher risks for all stroke types, including hemorrhagic and ischemic stroke (aHRs ranging from 1.55 to 2.41).
  • The association between CLBP and ischemic stroke was particularly strong in patients under 50 years old (aHR: 3.56).
  • NSAID usage did not appear to influence the observed association between CLBP and stroke risk.

Conclusions:

  • Chronic low back pain is associated with an elevated risk of stroke, especially ischemic stroke.
  • The heightened risk is most prominent in younger adults (under 50) with CLBP.
  • Further research, including prospective studies, is needed to elucidate the causal mechanisms linking CLBP and stroke.
Abstract