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Table 1 Nocturnal noise levels within the ICU

From: The nocturnal acoustical intensity of the intensive care environment: an observational study

Location Mean (dB (A))(SD) Min (dB (A)) Peak (dB (A))
Intensive care unit (overall) 52.9 (5.9) 40.2 98.3
Nursing station 54.8 (5.8) 42 98.3
Isolation rooms 53.5 (4.1) 47.7 96.3
Two-bedded bay 53 (6.8) 41.6 86.1
Four-bedded bay 52 (6.1) 40.2 85.5