Diagnostic images and therapeutic interventions in the JTDB and NTDB
| Variables | Unmatched patients | Matched patients | ||||
| JTDB(n=22 535) | NTDB(n=112 060) | P values | JTDB(n=14 960) | NTDB(n=14 960) | P values | |
| Diagnostic image | ||||||
| Angiography | 1647 (7.3) | 10 743 (9.6) | <0.001 | 758 (5.1) | 1053 (7.0) | <0.001 |
| CT scan | 18 444 (83.0) | 61 251 (54.7) | <0.001 | 12 243 (82.8) | 7309 (48.9) | <0.001 |
| Intervention | ||||||
| Blood transfusion* | 3237 (14.6) | 15 876 (14.2) | 0.069 | 1278 (8.7) | 2148 (14.4) | <0.001 |
| Craniotomy | 747 (3.3) | 2255 (2.0) | <0.001 | 431 (2.9) | 285 (1.9) | <0.001 |
| Thoracotomy | 202 (0.9) | 648 (0.6) | <0.001 | 33 (0.2) | 34 (0.2) | 0.902 |
| Laparotomy | 571 (2.5) | 4139 (3.7) | <0.001 | 230 (1.5) | 232 (1.6) | 0.924 |
Data are presented as number (%).
*Within 24 hours from admission.
JTDB, Japanese Trauma Data Bank; NTDB, National Trauma Data Bank.