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Comparison of the effectiveness of noise reduction strategies in intensive care units
| Intervention | ||||
| Outcome | Earplugs | Behavioural modification | Sound masking | Acoustic absorption |
| Average noise level reduction | NA | 2.7dBA | NA | 3.6 dBA |
| Average sleep improvement | 25.3% | 16.1% | 42.7% | NA |
NA, not applicable.
