High BMI Increases Risk of Chronic Low Back Pain Later

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High BMI Increases Risk of Chronic Low Back Pain Later
High BMI Increases Risk of Chronic Low Back Pain Later

(HealthDay News) – High body mass index (BMI) significantly increases the risk of chronic low back pain later, according to a study published in the Jan. 15 issue of Spine.

Ingrid Heuch, MD, PhD, from Oslo University Hospital in Norway, and colleagues analyzed data from the community-based HUNT 2 (1995–1997) and HUNT 3 (2006–2008) studies of an entire Norwegian county, including 8,733 men and 10,149 women aged 30–69 years, who did not have chronic LBP at baseline, and 2,669 men and 3,899 women with LBP at baseline. Groups were assessed for chronic LBP after 11 years.

The researchers observed a significant positive association between BMI and risk of LBP among persons without LBP at baseline. For BMI of ≥30kg/m² vs. BMI <25kg/m², the odds ratio for chronic LBP was 1.34 for men and 1.22 for women, when adjusting for other factors, including age, education, work status, physical activity at work and in leisure time, smoking, blood pressure, and serum lipid levels. BMI and recurrence of LBP among women were also significantly positively associated. There was negligible influence from LBP status at baseline on subsequent change in BMI.

"High values of BMI may predispose to chronic LBP 11 years later, both in individuals with and without LBP," the authors write.

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