Table 2.
GEE analysis of the relationship between cognitive impairment and 1-year death
| Variable | Unadjusted | Adjusted* | ||||
|---|---|---|---|---|---|---|
| OR | 95%CI | P | OR | 95%CI | P | |
| Total | ||||||
| Normal cognition | 1(Ref.) | 1(Ref.) | – | 1(Ref.) | 1(Ref.) | – |
| Cognitive impairment | 1.503 | 1.327–1.702 | < 0.001 | 1.216 | 1.076–1.375 | 0.002 |
| 65–74 years old | ||||||
| Normal cognition | 1(Ref.) | 1(Ref.) | – | 1(Ref.) | 1(Ref.) | – |
| Cognitive impairment | 1.367 | 1.144–1.633 | 0.001 | 1.196 | 1.001–1.430 | 0.049 |
| ≥75 years old | ||||||
| Normal cognition | 1(Ref.) | 1(Ref.) | – | 1(Ref.) | 1(Ref.) | – |
| Cognitive impairment | 1.531 | 1.261–1.860 | < 0.001 | 1.229 | 1.009–1.495 | 0.040 |
*Adjusted: age, gender, surgery, frailty, depression, and handgrip strength
GEE Generalized Estimating Equation