Figure 6 .

Ratio of surgical rate overweight (BMI ≥ 25) or obese (BMI ≥ 30) to rate with a lower BMI. ^U.S. population-based study age ≥ 47. Patients with an arthritis-related visit to the doctor in the past two years at baseline. Adjusted for age, gender, race, comorbidities, functional limitations, income, wealth, insurance type, employment, and education [21]. *Arthritis subsample. Other details as in Footnote ^. **Three-year rate. Adjusted for age, morning stiffness, Kellgren-Lawrence ≥ 2, worst pain location, function with decreased active hip motion [19]. ***Six-year rate. Other details as in Footnote **. ~U.S. population-based study age ≥ 60. Adjusting for covariates age, sex, wealth, employment, seen doctor ≥2 times in past 2 years, education, and comorbidity [38].

Mota et al. BMC Health Services Research 2012 12:225   doi:10.1186/1472-6963-12-225
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