Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 2 Patient characteristics among surgically treated ankle fracture patients by admission status after propensity score matching
From: Open treatment of ankle fracture as inpatient increases risk of complication
Inpatient | Outpatient | p value | |
|---|---|---|---|
(N = 2630) | (N = 2630) | ||
Patient demographics | |||
Age (years), median (IQR) | 63 (49–74) | 63 (48–74) | 0.707 |
ASA class, median (IQR) | 2 (2–2) | 2 (2–2) | 0.430 |
Body mass index (kg/m2), median (IQR) | 29.3 (25.8–34.0) | 29.3 (25.8–34.2) | 0.957 |
Male, N (%) | 1108 (42.1) | 1090 (41.4) | 0.615 |
Smoker, N (%) | 706 (26.8) | 725 (27.6) | 0.556 |
Preoperative characteristics | |||
Weight loss >10% in last 6 months, N (%) | 0 (0.0) | 2 (0.1) | 0.157 |
Diabetic, N (%) | 238 (9.1) | 241 (9.2) | 0.886 |
Dyspnea, N (%) | 0.652 | ||
No | 2561 (97.4) | 2554 (97.1) | |
With moderate exertion | 67 (2.6) | 72 (2.7) | |
At rest | 2 (0.1) | 4 (0.2) | |
Use of steroids, N (%) | 41 (1.6) | 37 (1.4) | 0.648 |
Bleeding disorder, N (%) | 60 (2.3) | 59 (2.2) | 0.926 |
On dialysis, N (%) | 6 (0.2) | 3 (0.1) | 0.317 |
Functional status, N (%) | 0.458 | ||
Independent | 2520 (95.8) | 2535 (96.4) | |
Partially dependent | 106 (4.0) | 93 (3.5) | |
Totally dependent | 4 (0.2) | 2 (0.1) | |
History of COPD, N (%) | 56 (2.1) | 51 (1.9) | 0.625 |
History of CHF, N (%) | 7 (0.3) | 6 (0.2) | 0.781 |
Disseminated cancer, N (%) | 0 (0.0) | 2 (0.1) | 0.157 |
Operative characteristics | |||
CPT code, N (%) | 0.919 | ||
27766 | 163 (6.2) | 157 (6.0) | |
27784 | 44 (1.7) | 45 (1.7) | |
27792 | 749 (28.5) | 722 (27.5) | |
27814 | 915 (34.8) | 958 (36.4) | |
27822 | 520 (19.8) | 505 (19.2) | |
27823 | 103 (3.9) | 109 (4.1) | |
27829 | 136 (4.9) | 134 (5.1) | |
Length of surgery (min), median (IQR) | 69 (49–98) | 65 (45–88) | <0.001 |
Propensity score, median (IQR) | 0.51 (0.42–0.60) | 0.51 (0.42–0.60) | 0.9283 |