Table 2.
Resident characteristics associated with 1-year mortality. Values are adjusted for calendar year.
| Basic Statistics | Univariate Cox Model | Multivariate Cox Model | |||||
|---|---|---|---|---|---|---|---|
| Variable Name | Observed N (%) | Event # (%) | P value | HR & 95% CI | P value | HR & 95% CI | P value |
| Total N (%) | 36405 (100.0) | 18019 (49.5) | |||||
| Age Group | |||||||
| 65 to 74 | 7331 (20.1) | 2967 (40.5) | <.0001 | Ref. | Ref. | ||
| 75 to 84 | 15619 (42.9) | 7440 (47.6) | 1.25 (1.20 – 1.31) | <.0001 | 1.26 (1.21 – 1.32) | <.0001 | |
| 85 over | 13455 (37.0) | 7612 (56.6) | 1.62 (1.55 – 1.69) | <.0001 | 1.65 (1.58 – 1.72) | <.0001 | |
| Gender | |||||||
| Male | 23089 (63.4) | 11567 (50.1) | 0.0025 | Ref. | Ref. | ||
| Female | 13316 (36.6) | 6452 (48.5) | 0.95 (0.92 – 0.98) | 0.0014 | 0.88 (0.85 – 0.91) | <.0001 | |
| Race | |||||||
| White | 29547 (81.2) | 14686 (49.7) | 0.0200 | Ref. | Ref. | ||
| Black | 5913 (16.2) | 2906 (49.1) | 0.98 (0.94 – 1.02) | 0.3583 | 0.94 (0.90 – 0.98) | 0.0034 | |
| Others | 945 (2.6) | 427 (45.2) | 0.86 (0.79 – 0.95) | 0.0031 | 0.83 (0.76 – 0.92) | 0.0002 | |
| Admission Status | |||||||
| Elective | 7753 (21.3) | 3069 (39.6) | <.0001 | Ref. | Ref. | ||
| Emergent | 28652 (78.7) | 14950 (52.2) | 1.49 (1.43 – 1.55) | <.0001 | 1.41 (1.36 – 1.47) | <.0001 | |
| ADL decline at baseline | |||||||
| No | 25741 (70.7) | 12076 (46.9) | <.0001 | Ref. | Ref. | ||
| Yes | 10664 (29.3) | 5943 (55.7) | 1.32 (1.27 – 1.36) | <.0001 | 1.23 (1.19 – 1.26) | <.0001 | |
| ADL groups at baseline | |||||||
| 0 to 12 | 8393 (23.1) | 3504 (41.7) | <.0001 | Ref. | Ref. | ||
| 13 to 17 | 7204 (19.8) | 3370 (46.8) | 1.18 (1.12 – 1.23) | <.0001 | 1.09 (1.04 – 1.15) | 0.0003 | |
| 18 to 21 | 10059 (27.6) | 5096 (50.7) | 1.33 (1.27 – 1.38) | <.0001 | 1.19 (1.14 – 1.24) | <.0001 | |
| 22 to 28 | 10749 (29.5) | 6049 (56.3) | 1.54 (1.48 – 1.61) | <.0001 | 1.41 (1.35 – 1.47) | <.0001 | |
| Cognitive impairment at baseline | |||||||
| 0 | 14220 (39.1) | 6605 (46.4) | <.0001 | Ref. | Ref. | ||
| 1 | 22185 (60.9) | 11414 (51.4) | 1.15 (1.12 – 1.19) | <.0001 | 1.02 (0.98 – 1.05) | 0.3320 | |
| Charlson score groups | |||||||
| 0 | 4408 (12.1) | 1884 (42.7) | <.0001 | Ref. | Ref. | ||
| 1 | 7137 (19.6) | 3322 (46.5) | 1.12 (1.06 – 1.19) | <.0001 | 1.12 (1.06 – 1.19) | <.0001 | |
| 2 | 7504 (20.6) | 3685 (49.1) | 1.23 (1.16 – 1.30) | <.0001 | 1.22 (1.16 – 1.29) | <.0001 | |
| 3,4 | 11446 (31.4) | 5889 (51.5) | 1.31 (1.24 – 1.38) | <.0001 | 1.30 (1.23 – 1.37) | <.0001 | |
| >=5 | 5910 (16.2) | 3239 (54.8) | 1.44 (1.36 – 1.52) | <.0001 | 1.42 (1.34 – 1.50) | <.0001 | |