Table 4.
Patient characteristics and clinical data over five years
| Variable | 1 (n = 442) Baseline |
2 (n = 820) Intervention |
3 (n = 806) Intervention |
4 (n = 773) Follow-up |
5 (n = 712) Follow-up |
p-value |
|---|---|---|---|---|---|---|
| Patient characteristics | ||||||
| Women (n, %) | 312 (70.6%) | 547 (66.7%) | 551 (68.4%) | 540 (69.9%) | 490 (68.8%) | 0.77 |
| Age (mean, SD) |
83.5 (8.2) 84.5 (65; 101) n = 442 |
84.5 (7.8) 85 (65; 102) n = 820 |
83.8 (8.2) 85 (65; 101) n = 806 |
83.8 (8.3) 85 (65; 102) n = 773 |
83.6 (8.3) 84 (65; 104) n = 712 |
0.19 |
| ASA classification | ||||||
| I | 20 (4.5%) | 15 (1.8%) | 14 (1.7%) | 30 (3.9%) | 17 (2.4%) | |
| II | 180 (40.7%) | 334 (40.8%) | 289 (35.9%) | 315 (40.9%) | 286 (40.5%) | |
| III | 211 (47.7%) | 410 (50.1%) | 448 (55.6%) | 382 (49.6%) | 355 (50.2%) | |
| IV | 31 (7.0%) | 60 (7.3%) | 55 (6.8%) | 43 (5.6%) | 49 (6.9%) | 0.88 |
| Diabetes | 61 (13.8%) | 126 (15.4%) | 128 (15.9%) | 133 (17.2%) | 123 (17.3%) | 0.072 |
| Cognitive failure | 125 (28.3%) | 267 (32.6%) | 352 (43.7%) | 315 (40.8%) | 258 (36.2%) | 0.0005 |
| Housing | ||||||
| Home | 370 (83.7%) | 573 (69.9%) | 568 (70.5%) | 516 (66.8%) | 504 (70.8%) | |
| Nursing home | 72 (16.3%) | 247 (30.1%) | 238 (29.5%) | 257 (33.2%) | 208 (29.2%) | < .0001 |
| Intact skin on admission | 291 (66.6%) | 525 (64.9%) | 496 (62.2%) | 514 (66.9%) | 457 (64.2%) | 0.81 |
| Clinical data | ||||||
| Time to surgery from admission (hours) | ||||||
| < 36 | 399 (90.3%) | 702 (85.7%) | 641 (79.5%) | 627 (81.1%) | 626 (88.0%) | |
| > 36 | 43 (9.7%) | 117 (14.3%) | 165 (20.5%) | 146 (18.9%) | 85 (12.0%) | 0.21 |
| Length of surgery |
75.1 (34.3) 72 (9; 226) n = 442 |
73.7 (32.4) 70 (13; 208) n = 820 |
70.2 (30.4) 69 (9; 248) n = 805 |
75.8 (34.3) 74 (11; 222) n = 773 |
71.5 (30.0) 69.5 (13; 174) n = 712 |
0.71 |
| Length of hospital stay |
14.3 (7.3) 13 (3; 60) n = 442 |
13.6 (7.6) 13 (2; 68) n = 820 |
12.4 (7.7) 11 (2; 133) n = 806 |
10.7 (5.4) 10 (3; 46) n = 772 |
9.7 (4.76) 9 (2; 44) n = 712 |
< .0001 |
| Surgical method | ||||||
| Total arthroplasty | 44 (10.0%) | 75 (9.1%) | 88 (11.1%) | 83 (10.8%) | 65 (9.1%) | |
| Hemiarthroplasty | 134 (30.3%) | 274 (33.4%) | 247 (31.1%) | 244 (31.9%) | 218 (30.6%) | |
| Internal fixation | 264 (59.7%) | 470 (57.3%) | 459 (57.8%) | 439 (57.3%) | 426 (59.8%) | 0.74 |
| Missing | 0 (0.0%) | 1 (0.1%) | 0 (0.0%) | 0 (0.0%) | 3 (0.4%) | |
| In-dwelling UTCa more than once | 24 (10.7%) | 83 (15.7%) | 101 (18.2%) | 76 (11.2%) | 82 (12.8%) | 0.22 |
For categorical variables, n (%) is presented
For continuous variables, the mean (SD)/median (range)/n = is presented
For comparisons between groups, the Mantel–Haenszel chi square test was used for ordered categorical variables and the Jonckheere-Terpstra test was used for continuous variables
aIn-dwelling Urinary Catheter (UTC)