Table 1. Patients’ Characteristics and Vital Signs.
| Variables | Morphine Group, n = 150 | Ketamine Group, n = 150 | P Value |
|---|---|---|---|
| Age, mean (SD), y | 34.1 ± 7.3 | 34.4 ± 7.6 | 0.93 |
| Sex, male (%) | 123 (82) | 126 (84) | 0.79 |
| Weight, kg | 68.4 ± 12.9 | 75.1 ± 14.6 | 0.018* |
| Final diagnosis, n (%) | |||
| Fracture | 36 (24) | 42 (28) | 0.64 |
| Soft tissue injury | 114 (76) | 108 (72) | 0.68 |
| Initial vital signs | |||
| SBP, mean (SD), (mm/Hg) | 124.7 ± 12.3 | 123.2 ± 16.4 | 0.60 |
| DBP, mean (SD), (mm/Hg) | 82.2 ± 10.6 | 78.9 ± 13.7 | 0.17 |
| Heart rate, mean (SD), (beats/min) | 81 ± 9.5 | 79.2 ± 12.6 | 0.42 |
| Oxygen saturation, mean (SD), (%) | 97.1 ± 1.4 | 96.6 ± 2.3 | 0.17 |
| Rescue analgesic, n (%) | 15 (10) | 51 (34) | 0.001* |
| Patient satisfaction | |||
| T60, n (%), excellent or good | 114 (76) | 66 (44) | 0.001* |
Abbreviations: NS, non-significant; SD, standard deviation; T60, 60 minutes after drug injection.