Research Article
Risk of Type 2 Diabetes among Osteoarthritis Patients in a Prospective Longitudinal Study
Table 1
Distribution of variables by exposure (osteoarthritis) status and unadjusted relative risks (RRs) of diabetes observed in the prospective analysis.
| Variable | No osteoarthritis ( = 19,089) | Osteoarthritis ( = 19,089) | Unadjusted RR (95% CI) |
| Diabetes | 11.0 | 16.4 | 1.32 (1.25–1.39) |
| Sex (women) | 60.4 | 60.4 | 1.01 (1.01-1.01) | Age (year) | | | | 20–39 | 8.8 | 8.8 | Reference | 40–49 | 12.4 | 12.4 | 2.00 (1.72–2.32) | 50–59 | 19.5 | 19.5 | 2.83 (2.47–3.25) | 60–69 | 26.0 | 26.0 | 2.96 (2.59–3.39) | 70–79 | 23.6 | 23.6 | 2.50 (2.17–2.87) | 80+ | 9.8 | 9.8 | 1.76 (1.45–2.14) | Socioeconomic status | | | | 1 (low) | 23.1 | 23.5 | 1.40 (1.28–1.53) | 2 | 21.5 | 21.8 | 1.36 (1.24–1.49) | 3 | 18.4 | 18.9 | 1.28 (1.17–1.40) | 4 | 18.3 | 18.4 | 1.13 (1.03–1.24) | 5 (high) | 18.8 | 17.4 | Reference | Obesity | 5.4 | 11.8 | 2.00 (1.86–2.16) | COPD | 16.0 | 24.4 | 1.28 (1.20–1.37) | Hypertension | 31.5 | 40.2 | 1.92 (1.82–2.03) | Hyperlipidemia | 9.3 | 11.4 | 1.44 (1.33–1.55) | Charlson score mean (SD) | 0.94 (1.83) | 1.07 (1.58) | 1.06 (1.04–1.08) |
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The numbers are percent unless otherwise mentioned. OA: osteoarthritis; COPD: chronic obstructive pulmonary disease.
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