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