Risk of Type 2 Diabetes among Osteoarthritis Patients in a Prospective Longitudinal Study

Figure 1

Adjusted relative risk (RR) and the 95% confidence interval (CI) of diabetes according to the severity of osteoarthritis. Box-plots with solid line represent cases of age 20–64 years and dash line represents cases of age 65 years and over. RRs were adjusted for age, sex, body mass index, socioeconomic status, chronic obstructive pulmonary disease, hypertension, hyperlipidemia, and Charlson index.