Table 1.
Patient demographics [16].
| Demographics | AIS (N = 199) | NMS (N = 81) | p Value |
|---|---|---|---|
| Age | 15.6 ± 2.1 | 15.2 ± 3.4 | p = 0.201 |
| Sex (M/F) | 56/143 | 44/37 | p < 0.001 |
| Major curve, degrees Preoperatively Postoperatively |
52 ± 8 12 ± 5 |
72 ± 18 20 ± 12 |
p < 0.001 p < 0.001 |
| Pelvic instrumentation, n (%) | 0/0 | 63 (77) % | |
| Operative time (h) | 3.1 ± 0.07 | 4.2 ± 0.13 | p < 0.001 |
| Intraoperative bleeding (mL) | 554 ± 349 | 1085 ± 1049 | p < 0.001 |
| Drain output (mL) | 489 ± 188 | 566 ± 208 | p = 0.0147 |
| Hidden blood loss (mL) | 398 ± 411 | 566 ± 533 | p = 0.0332 |
| Total bleeding (mL) | 1358 ± 544 | 1914 ± 1006 | p < 0.001 |