Characteristic or outcome | Continuous risk score median (IQR) | No. (%) of patients*† | |||||||
---|---|---|---|---|---|---|---|---|---|
Risk group 1 | Risk group 2 | Risk group 3 | Risk group 4 | Risk group 5 | Risk group 6 | Risk group 7 | Risk group 8 | ||
Characteristic | |||||||||
Age group, yr | |||||||||
65–74 | 0.08 (0.06–0.14) | 77 776 (23.4) | 107 947 (32.5) | 67 590 (20.3) | 37 343 (11.2) | 20 012 (6.0) | 14 626 (4.4) | 5221 (1.6) | 1877 (0.6) |
75–84 | 0.11 (0.06–0.19) | 37 308 (13.6) | 72 208 (26.3) | 62 391 (22.8) | 42 898 (15.6) | 27 099 (9.9) | 21 353 (7.8) | 8025 (2.9) | 2989 (1.1) |
≥ 85 | 0.17 (0.08–0.25) | 12 115 (6.7) | 34 076 (18.7) | 40 290 (22.1) | 35 310 (19.4) | 25 666 (14.1) | 22 512 (12.4) | 8896 (4.9) | 3173 (1.7) |
Sex | |||||||||
Female | 0.11 (0.06–0.19) | 63 741 (15.6) | 106 646 (26.0) | 87 059 (21.2) | 61 503 (15.0) | 39 894 (9.7) | 33 007 (8.1) | 13 017 (3.2) | 4932 (1.2) |
Male | 0.11 (0.06–0.17) | 63 458 (16.8) | 107 585 (28.4) | 83 212 (22.0) | 54 048 (14.3) | 32 883 (8.7) | 25 484 (6.7) | 9125 (2.4) | 3107 (0.8) |
Charlson comorbidity group‡ | |||||||||
1 | 0.08 (0.06–0.17) | 119 949 (21.6) | 174 126 (31.3) | 116 341 (20.9) | 68 080 (12.2) | 38 284 (6.9) | 27 339 (4.9) | 9070 (1.6) | 2808 (0.5) |
2 | 0.17 (0.11–0.25) | 4728 (2.6) | 31 745 (17.5) | 42 982 (23.7) | 37 234 (20.5) | 26 866 (14.8) | 24 153 (13.3) | 10 022 (5.5) | 3874 (2.1) |
3 | 0.17 (0.11–0.25) | 2522 (4.9) | 8360 (16.4) | 10 948 (21.4) | 10 237 (20.0) | 7627 (14.9) | 6999 (13.7) | 3050 (6.0) | 1357 (2.7) |
Outcome | |||||||||
In-hospital death (1 yr) | |||||||||
Yes | 0.17 (0.11–0.25) | 1393 (4.6) | 4769 (15.8) | 6294 (20.8) | 5915 (19.6) | 4620 (15.3) | 4389 (14.5) | 2011 (6.7) | 842 (2.8) |
No | 0.11 (0.06–0.19) | 125 806 (16.6) | 209 462 (27.6) | 163 997 (21.6) | 109 636 (14.5) | 68 157 (9.0) | 54 102 (7.1) | 20 131 (2.7) | 7197 (1.0) |
Hospital readmission (30 d) | |||||||||
Yes | 0.17 (0.11–0.25) | 803 (6.6) | 2113 (17.2) | 2461 (20.1) | 2243 (18.3) | 1718 (14.0) | 1708 (13.9) | 798 (6.5) | 420 (3.4) |
No | 0.11 (0.06–0.19) | 126 396 (16.3) | 212 118 (27.3) | 167 810 (21.6) | 113 308 (14.6) | 71 059 (9.2) | 56 783 (7.3) | 21 344 (2.8) | 7619 (1.0) |
Hospital readmission (1 yr)§ | |||||||||
Yes | 0.14 (0.08–0.22) | 15 510 (9.1) | 34 805 (20.4) | 36 611 (21.5) | 30 460 (17.9) | 21 842 (12.8) | 19 574 (11.5) | 8450 (5.0) | 3376 (2.0) |
No | 0.11 (0.06–0.17) | 111 689 (18.1) | 179 426 (29.0) | 133 660 (21.6) | 85 091 (13.8) | 50 935 (8.2) | 38 917 (6.3) | 13 692 (2.2) | 4663 (0.8) |
Long LOS (1 yr)¶ | |||||||||
Yes | 0.19 (0.11–0.28) | 1263 (4.8) | 3913 (14.8) | 5006 (18.9) | 4975 (18.8) | 4064 (15.4) | 4200 (15.9) | 2040 (7.7) | 992 (3.8) |
No | 0.11 (0.06–0.19) | 125 936 (16.5) | 210 318 (27.6) | 165 265 (21.7) | 110 576 (14.5) | 68 713 (9.0) | 54 291 (7.1) | 20 102 (2.6) | 7047 (0.9) |
High users of hospital beds (1 yr)** | |||||||||
Yes | 0.19 (0.11–0.28) | 547 (4.1) | 1768 (13.3) | 2429 (18.1) | 2560 (19.1) | 2053 (15.3) | 2285 (17.0) | 1161 (8.7) | 603 (4.5) |
No | 0.11 (0.06–0.19) | 126 652 (16.3) | 212 463 (27.4) | 167 842 (21.7) | 112 991 (14.6) | 70 724 (9.1) | 56 206 (7.3) | 20 981 (2.7) | 7436 (1.0) |
New admission to LTC (90 d) | |||||||||
Yes | 0.19 (0.14–0.28) | 173 (1.0) | 1623 (9.0) | 3441 (19.2) | 4166 (23.2) | 3650 (20.3) | 3249 (18.1) | 1215 (6.8) | 429 (2.4) |
No | 0.11 (0.06–0.17) | 81 553 (18.9) | 128 649 (29.8) | 96 188 (22.3) | 59 556 (13.8) | 33 667 (7.8) | 23 466 (5.4) | 7296 (1.7) | 1997 (0.5) |
New admission to LTC (1 yr)¶ | |||||||||
Yes | 0.19 (0.14–0.28) | 496 (1.8) | 2908 (10.6) | 5495 (20.1) | 6271 (22.9) | 5186 (19.0) | 4630 (16.9) | 1768 (6.5) | 614 (2.2) |
No | 0.11 (0.06–0.17) | 81 230 (19.2) | 127 364 (30.1) | 94 134 (22.3) | 57 451 (13.6) | 32 131 (7.6) | 22 085 (5.2) | 6743 (1.6) | 1812 (0.4) |
Note: IQR = interquartile range, LOS = length of stay, LTC = long-term care.
↵* Row percentage.
↵† Risk groups correspond to continuous risk scores as follows: risk group 1 (0–0.028), risk group 2 (0.056–0.083), risk group 3 (0.111–0.139), risk group 4 (0.167–0.194), risk group 5 (0.222–0.250), risk group 6 (0.278–0.333), risk group 7 (0.361–0.417) and risk group 8 (≥ 0.444).
↵‡ Based on the Charlson Comorbidiy Index, grouped as 0–1 for Charlson group 1; 2–4 for Charlson group 2; and ≥ 5 for Charlson group 3.42
↵§ All-cause in-hospital death within 1 year of the index hospital discharge.
↵¶ Defined as cumulative in-hospital LOS ≥ 30 days within 1 year of the index hospital discharge.
↵** Defined as 3 or more hospitalizations with a cumulative LOS > 30 days within 1 year of the index hospital discharge.
†† Includes a subset of patients newly admitted to LTC (either within 90 d or 1 yr of index hospital discharge) discharged alive from hospitals in Alberta, British Columbia, Newfoundland and Labrador, Ontario and Yukon, who had no previous LTC admissions (within 5 yr of the most recent hospital index discharge).