Table 2.
Primary outcome
| Passive warming (n = 22) |
Active warming (n = 26) |
|
|---|---|---|
| Body core temperature (°C) * | ||
| 1st measurement | 35.1 (34.7 - 35.5) | 35.6 (35.2 - 36.0) |
| 2nd measurement | 36.0 (35.7 - 36.3) † | 36.4 (36.1 - 36.7) † |
| Cold discomfort ** | ||
| 1st measurement | 5 (4 - 7) | 7 (5 - 8) |
| 2nd measurement | 3 (0 - 5) † | 2 (1 - 3) † |
| ↳ increased | 1 | 0 |
| ↳ unchanged | 5 | 0 |
| ↳ decreased | 15 | 26 ‡ |
| Vital signs * | ||
| Heart rate | ||
| 1st measurement | 83 (77 - 90) | 84 (78 - 90) |
| 2nd measurement | 82 (76 - 87) | 80 (75 - 86) † |
| Systolic blood pressure | ||
| 1st measurement | 138 (129 - 147) | 136 (127 - 145) |
| 2nd measurement | 134 (124 - 143) | 131 (124 - 139) |
| Respiratory rate | ||
| 1st measurement | 17 (16 - 19) | 18 (16 - 20) |
| 2nd measurement | 17 (15 - 18) | 16 (14 - 18) † |
| Revised Trauma Score | 7.84 (7.84 - 7.84) | 7.83 (7.80 - 7.84) |
Values are * mean (95% confidence interval) or ** median (interquartile range) and number of patients. The internal drop-out of any variable was ≤ 2 patients.
† Significant difference within the same group (Mann-Whitney U-test, p < 0.05)
‡ Significant difference between groups (Fisher's exact test, p < 0.05)