Pre-intubation and post-intubation oropharyngeal pH, and patient characteristics
| Elective patients | Emergency patients | ||
|---|---|---|---|
| Number | 48 | 8 | |
| Age | Mean (SD) | 66 (10.67) | 57.75 (27.09) |
| min–max | 30–84 | ||
| Sex (number (%)) | Male | 36 (75) | 3 (38) |
| Female | 12 (25) | 5 (62) | |
| Mean pH pre-intubation mean (SD) | 6.6 (0.57) | 6.9 (0.83) | |
| min–max | 5.8–8.0 | 6.0–8.0 | |
| Mean pH post-intubation mean (SD) | 7.0 (0.70) | 6.8 (1.17) | |
| min–max | 6.0–8.0 | 4.7–8.0 | |
| Mean pH difference | Increase 0.4 | Decrease 0.3 | |
| 95% Confidence intervals | 0.1 increase to 0.6 increase | 1.5 decrease to 0.9 increase | |