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Description of parameters analyzed according to each unit.
| Parameter | Site |
||
|---|---|---|---|
| First ICU | CCU | Second ICU | |
| Mean - dB (A) | 64.1 | 58.9 | 64.0 |
| Low - dB (A) | 57.0 | 51.9 | 55.9 |
| High - dB (A) | 80.4 | 73.3 | 82.4 |
| Standard deviation | 3.4 | 2.9 | 3.1 |
| Mean staff number on site | 13 | 8 | 14 |
| Number of patients | 8 | 7 | 13 |
CCU: Coronary Care Unit, ICU: Intensive Care Unit.
