Table 1: Baseline characteristics of patients who underwent surgery at The Hospital for Sick Children for supracondylar humerus fracture.
| Characteristic | Year; no. (%) of patients* (n = 945) | p value for trend | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 2008/09 (n = 108) |
2009/10 (n = 113) |
2010/11 (n = 101) |
2011/12 (n = 158) |
2012/13 (n = 150) |
2013/14 (n = 146) |
2014/15 (n = 169) |
Missing | ||
| Demographic | |||||||||
| Age, mean ± SD, yr | 5.44 ± 2.47 | 5.20 ± 2.54 | 5.66 ± 2.78 | 5.35 ± 2.42 | 5.53 ± 2.55 | 5.51 ± 2.50 | 5.43 ± 2.47 | 0 (0) | 0.7 |
| Female sex | 56 (51.9) | 64 (56.6) | 39 (39.4) | 68 (43.6) | 63 (42.0) | 70 (48.0) | 86 (50.9) | 4 (0.4) | 0.6 |
| American Society of Anesthesiologists score | 30 (3.2) | 0.3 | |||||||
| -1 | 86 (86.9) | 96 (90.6) | 85 (87.6) | 136 (88.3) | 129 (87.8) | 128 (87.7) | 154 (92.8) | ||
| -2 | 11 (11.1) | 9 (8.5) | 11 (11.3) | 16 (10.4) | 17 (11.6) | 16 (11.0) | 10 (6.0) | ||
| -3 | 2 (2.0) | 1 (0.9) | 1 (1.0) | 2 (1.3) | 1 (0.7) | 2 (1.4) | 2 (1.2) | ||
| Presence of any comorbidity | 0 (0) | 0 (0) | 2 (2.0) | 3 (1.9) | 0 | 7 (4.8) | 5 (3.0) | 0 (0) | 0.007 |
| Injury | |||||||||
| Gartland type III/IV | 73 (71.6) | 67 (60.4) | 58 (57.4) | 100 (64.1) | 89 (59.3) | 96 (65.8) | 105 (62.5) | 11 (1.2) | 0.6 |
| Open fracture | 3 (2.8) | 1 (0.9) | 1 (1.0) | 4 (2.6) | 2 (1.4) | 0 (0) | 2 (1.2) | 13 (1.4) | 0.2 |
| Associated injury | 3 (2.8) | 5 (4.4) | 8 (7.9) | 4 (2.5) | 6 (4.0) | 3 (2.0) | 4 (2.4) | 0 (0) | 0.2 |
| Preoperative nerve palsy | 24 (22.2) | 21 (19.4) | 17 (17.4) | 22 (14.5) | 19 (12.8) | 18 (12.4) | 34 (21.0) | 23 (2.4) | 0.3 |
| Compartment syndrome | 1 (0.9) | 0 (0) | 1 (1.02) | 0 (0) | 0 (0) | 0 (0) | 2 (1.2) | 14 (1.5) | 0.8 |
| Vascular compromise | 0 (0) | 0 (0) | 2 (2.0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 13 (1.4) | 0.3 |
| Reoperation (any reason) | 3 (2.8) | 0 (0) | 4 (4.0) | 2 (1.3) | 4 (2.7) | 1 (0.7) | 4 (2.4) | 10 (1.0) | 1.0 |
| Admission | |||||||||
| Transferred from outside hospital | 89 (82.4) | 88 (77.9) | 72 (71.3) | 120 (75.9) | 116 (77.3) | 118 (80.8) | 127 (75.1) | 0 (0) | 0.6 |
| Surgery in summer | 74 (68.5) | 89 (78.8) | 75 (74.2) | 113 (71.5) | 112 (74.7) | 102 (69.9) | 120 (71.0) | 0 (0) | 0.6 |
| Surgery after hours | 52 (48.1) | 59 (52.2) | 50 (49.5) | 100 (63.3) | 86 (57.3) | 74 (50.7) | 98 (58.0) | 0 (0) | 0.2 |
| Delay to fixation, mean ± SD, h | 13.73 ±18.44 | 12.74 ± 5.99 | 11.53 ± 6.54 | 13.49 ± 7.54 | 12.39 ± 7.34 | 12.54 ± 6.71 | 11.27 ± 6.28 | 31 (3.3) | 0.1 |
| Surgical duration, mean ± SD, min | 81.40 ± 21.51 | 81.60 ± 30.95 | 86.43 ± 59.75 | 85.13 ± 42.77 | 81.23 ± 32.35 | 78.42 ± 29.91 | 69.98 ± 32.87 | 4 (0.4) | 0.003 |
| Length of stay, mean ± SD, d | 1.25 ± 1.08 | 1.22 ± 0.41 | 1.28 ± 0.70 | 1.20 ± 0.40 | 1.23 ± 0.43 | 1.22 ± 0.47 | 1.14 ± 0.48 | 4 (0.4) | 0.2 |
| Cost of index admission, mean ± SD, $ | 2560 ± 1190 | 2306 ± 507 | 2685 ± 951 | 2512 ± 673 | 2529 ± 599 | 2457 ± 586 | 2353 ± 767 | 4 (0.4) | 0.2 |
Note: SD = standard deviation.
*Except where noted otherwise.