Association between BMI and low back pain

• 出 处: 中华物理医学与康复杂志
• 发表日期: 2018年40期

BACKGROUND AND OBJECTIVE

Low back pain (LBP) and obesityare two of the most prevalent medical conditions in the United States. Each are major drivers of increased health care expenditures. This study explored the prevalence, severity and frequency of LBP and its association with body mass index (BMI)．

METHODS

This study included 4，796 patients from the Osteoarthritis Initiative, a prospective study initially designed to review osteoarthritis of the knee. BMI was classified according to the World Health Organization′s definition, with prevalence, severity and frequency of low back pain also assessed.

RESULTS

Compared with patients in the normal and underweight categories, those who were overweight and obese had an increased prevalence of LBP (P<0.05 for both), as did those who were severely and morbidly obese (P<0.01 for both). An adjusted analysis indicated that variables significantly related to an increased prevalence of LBP were a BMI of greater than 25 kg/m² (P＝0.021), depression (P＝0.048), smoking (P＝0.002), OA of the hip (P＝0.025) and OA of the spine (P<0.001)．

CONCLUSION

This study suggests that a BMI of over 25 kg/m² is associated with an increased prevalence of low back pain.