Operating room noise levels on weekdays
| Weekday | Mean±SD, dB(A) | Range, dB(A) | Number of measurements | F | p Value |
| Monday | 63.7±2.0 | 59.8–68.4 | 45 | 1.404 | 0.234 |
| Tuesday | 64.4±2.0 | 60.6–69.5 | 47 | ||
| Wednesday | 64.7±1.5 | 61.4–68.8 | 43 | ||
| Thursday | 64.0±1.8 | 59.9–68.9 | 40 | ||
| Friday | 64.2±2.7 | 59.2–72.3 | 50 | ||
| Total | 64.2±2.1 | 59.2–72.3 | 225 |