Table 1 Baseline characteristics of all patients over 80 years of age vs. propensity-matched patients
All patients over 80 years of age | Propensity-matched patients | |||||
|---|---|---|---|---|---|---|
Variables | Conservative | Surgical | Absolute Standardised Difference,% | Conservative | Surgical | Absolute Standardised Difference,% |
n = 2017 | n = 1241 | n = 845 | n = 845 | |||
Age, years; median [IQR] | 86.0 [83.0–89.0] | 83.0 [81.0–86.0] | 88.2 | 84.0 [81.0–87.0] | 84.0 [82.0–86.0] | 1.9 |
Gender (male), n (%) | 524 (26.0) | 315 (25.4) | 1.4 | 234 (27.7) | 227 (26.9) | 1.6 |
BMI, n(%) | ||||||
< 18.5 | 307 (15.2) | 172 (13.9) | 3.9 | 129 (15.3) | 121 (14.3) | 0.3 |
18.5–25.0 | 867 (43.0) | 786 (63.3) | 42.2 | 508 (60.1) | 525 (62.1) | 4.1 |
>25.0 | 188 (9.3) | 189 (15.2) | 16.4 | 126 (14.9) | 113 (13.4) | 4.9 |
BMI data missing | 655 (32.5) | 94 (7.6) | 94.1 | 82 (9.7) | 86 (10.2) | 1.6 |
Ambulance use, n (%) | 1640 (81.3) | 1038 (83.6) | 6.3 | 680 (80.5) | 686 (81.2) | 0.3 |
Admission pathway, n (%) | ||||||
Home | 1598 (79.2) | 975 (78.6) | 1.6 | 708 (83.8) | 697 (82.5) | 4.0 |
Other hospital or clinic | 172 (8.5) | 244 (19.7) | 28.0 | 118 (14.0) | 128 (15.1) | 4.0 |
Nursing-care facility | 247 (12.2) | 22 (1.8) | 79.3 | 19 (2.2) | 20 (2.4) | 0.8 |
Hypertension, n (%) | 867 (43.0) | 695 (56.0) | 26.2 | 476 (56.3) | 458 (54.2) | 5.0 |
Diabetes mellitus, n (%) | 88 (4.4) | 114 (9.2) | 16.7 | 67 (7.9) | 65 (7.7) | 0.9 |
COPD, n (%) | 68 (3.4) | 45 (3.6) | 1.4 | 29 (3.4) | 35 (4.1) | 3.0 |
Chronic kidney disease, n (%) | 63 (3.1) | 54 (4.4) | 6.0 | 35 (4.1) | 35 (4.1) | 1.2 |
Ischemic heart disease, n (%) | 162 (8.0) | 163 (13.1) | 15.1 | 107 (12.7) | 109 (12.9) | 0.4 |
Chronic Liver disease, n (%) | 32 (1.6) | 42 (3.4) | 9.9 | 23 (2.7) | 22 (2.6) | 0.7 |
Cancer, n (%) | 91 (4.5) | 35 (2.8) | 10.2 | 30 (3.6) | 32 (3.8) | 0.6 |
Dementia, n (%) | 191 (9.5) | 80 (6.4) | 12.3 | 70 (8.3) | 55 (6.5) | 7.2 |
JCS at admission, n (%) | ||||||
(alert) | 937 (46.5) | 890 (71.7) | 56.1 | 555 (65.7) | 562 (66.5) | 1.0 |
1–3 (delirious) | 410 (20.3) | 206 (16.6) | 10.0 | 180 (21.3) | 161 (19.1) | 4.8 |
10–30 (somnolent) | 161 (8.0) | 57 (4.6) | 16.2 | 48 (5.7) | 45 (5.3) | 0.0 |
100–300 (coma) | 509 (25.2) | 88 (7.1) | 70.7 | 62 (7.3) | 77 (9.1) | 4.9 |
Cardiopulmonary arrest on arrival,n(%) | 201 (10.0) | 5 (0.4) | 150.9 | 1 (0.1) | 5 (0.6) | 4.6 |
Cardiac tamponade, n (%) | 321 (15.9) | 178 (14.3) | 4.5 | 109 (12.9) | 124 (14.7) | 1.5 |
Shock, n (%) | 153 (7.6) | 226 (18.2) | 27.5 | 93 (11.0) | 96 (11.4) | 3.6 |
Coronary malperfusion, n (%) | 50 (2.5) | 24 (1.9) | 4.0 | 93 (11.0) | 96 (11.4) | 4.2 |
Limb ischemia, n (%) | 99 (4.9) | 71 (5.7) | 3.5 | 36 (4.3) | 46 (5.4) | 3.0 |
Aortic insufficiency, n (%) | 41 (2.0) | 143 (11.5) | 29.7 | 33 (3.9) | 50 (5.9) | 7.5 |
Hospital volume, n (%) | ||||||
Low | 1302 (64.6) | 571 (46.0) | 37.2 | 465 (55.0) | 452 (53.5) | 4.0 |
Middle | 548 (27.2) | 448 (36.1) | 18.6 | 285 (33.7) | 306 (36.2) | 5.4 |
High | 167 (8.3) | 222 (17.9) | 25.1 | 95 (11.2) | 87 (10.3) | 1.9 |