Table 1. Demographics of patients undergoing release of tethered cord.
| Demographics | Male [1,768 (48.0)] | Female [1,914 (52.0)] | P value | Total (N=3,682) |
|---|---|---|---|---|
| Case type, n (%) | 0.9038 | |||
| Elective | 1,715 (97.0) | 1,860 (97.2) | 3,575 (97.1) | |
| Urgent | 8 (0.5) | 7 (0.4) | 15 (0.4) | |
| Emergent | 45 (2.5) | 47 (2.5) | 92 (2.5) | |
| Race, n (%) | 0.9987 | |||
| White | 1,390 (78.6) | 1,505 (78.6) | 2,895 (78.6) | |
| Black or African American | 143 (8.1) | 154 (8.1) | 297 (8.1) | |
| Asian | 67 (3.8) | 71 (3.7) | 138 (3.7) | |
| Other/unknown | 168 (9.5) | 184 (9.6) | 352 (9.6) | |
| Hispanic ethnicity*, n (%) | 0.0575 | |||
| Yes | 290 (16.8) | 268 (14.5) | 558 (15.6) | |
| No | 1,436 (83.2) | 1,581 (85.5) | 3,017 (84.4) | |
| Age (years), n (%) | 0.0015 | |||
| Mean age | 5.6 (±4.6) | 6.1 (±4.9) | 5.8 (±4.8) | |
| 0–5 | 1,056 (59.7) | 1,067 (55.8) | 2,123 (57.7) | |
| 6–10 | 443 (25.1) | 498 (26.0) | 941 (25.6) | |
| 11–15 | 228 (12.9) | 269 (14.1) | 497 (13.5) | |
| 16–18 | 41 (2.3) | 80 (4.1) | 121 (3.3) | |
| BMI, n (%) | 0.3971 | |||
| Mean BMI | 18.4 (±7.2) | 18.6 (±6.9) | 18.5 (±7.1) | |
| <18.5 | 1,227 (69.4) | 1,261 (65.9) | 2,488 (67.6) | |
| 18.5–25 | 426 (24.1) | 500 (26.1) | 926 (25.1) | |
| 25–30 | 74 (4.2) | 95 (5.0) | 169 (4.6) | |
| 30–35 | 13 (0.7) | 31 (1.6) | 44 (1.2) | |
| 35–40 | 15 (0.9) | 14 (0.7) | 29 (0.8) | |
| >40 | 12 (0.7) | 13 (0.7) | 26 (0.7) | |
| ASA classification, n (%) | 0.0002 | |||
| 1–2 | 1,171 (66.2) | 1,375 (71.8) | 2,546 (69.2) | |
| 3–4 | 597 (33.8) | 539 (28.2) | 1,136 (30.9) |
*Of available data n=3,575.