Table 3.
COX proportional hazard survival analysis for risk of revision.
| 60–65 (n = 13,895) | Under 60 (n = 41,112) | Over 65 (n = 6138) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Crude | Adjusted | Crude | Adjusted | |||||||||||
| HR | 95% CI | P-value | HR | 95% CI | P-value | HR | 95% CI | P-value | HR | 95% CI | P-value | |||
| Revision | Reference | 0.50 | (0.46,0.54) | < 0.0001 | 0.57 | (0.53,0.62) | < 0.0001 | 1.02 | (0.91,1.14) | 0.78 | 0.96 | (0.86,1.08) | 0.53 | |
| Revision(5 year) | Reference | 0.46 | (0.41,0.50) | < 0.0001 | 0.53 | (0.48,0.58) | < 0.0001 | 1.14 | (0.99,1.29) | 0.051 | 1.07 | (0.94,1.21) | 0.33 | |
| Revision(10 year) | Reference | 0.49 | (0.46,0.54) | < 0.0001 | 0.57 | (0.52,0.62) | < 0.0001 | 1.03 | (0.92,1.15) | 0.61 | 0.98 | (0.87,1.09) | 0.68 | |
HR hazard ratio, CI confidence interval, reference: age of 60–65.
*Adjusted variable: age, sex, comorbidities, type of insurance, type of hospital, region of residence, CCI.