Table 1.
Rates of primary and revision TKAs
| Age group (years) |
Rates of diabetic cohort having surgery | Rates of nondiabetic cohort having surgery | Odds ratio | 95% CI of odds ratio | p value | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Primary TKA | Revision TKA | Primary TKA | Revision TKA | Primary TKA | Revision TKA | Primary TKA | Revision TKA | Primary TKA | Revision TKA | |
| 46–55 | 0.14 | 0.03 | 0.05 | 0.01 | 2.8 | 2.9 | 2.1–3.7 | 1.5–5.8 | < 0.0001 | 0.004 |
| 56–65 | 0.21 | 0.02 | 0.08 | 0.01 | 2.5 | 1.6 | 2.1–3.0 | 0.9–2.8 | < 0.0001 | NS |
| 66+ | 0.11 | 0.02 | 0.09 | 0.01 | 1.2 | 1.5 | 1.1–1.4 | 1.1–1.2 | 0.0004 | 0.0037 |
Total number of patients in the diabetic cohort age groups were 34,949 (46–55 years), 70,156 (56–65 years), and 342,933 (66+ years); total number of patients in the nondiabetic cohorts were 800,660 (46–55 years), 603,918 (56–65 years), and 1,614,757 (66+ years); NS = not significant (p > 0.05).