Noise quantification in the intensive care unit of a tertiary care hospital

doi:10.5492/wjccm.v15.i2.114240

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World Journal of Critical Care Medicine

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2220-3141

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World J Crit Care Med. Jun 9, 2026; 15(2): 114240
Published online Jun 9, 2026. doi: 10.5492/wjccm.v15.i2.114240

Table 2 Sound metrics during activity hours

	Lmax	L90	L10	L50	Leq	SEL
Nurses handover (8:00-9:00 hours)	83.9 ± 4.1	59.4 ± 2.3	70.0 ± 2.0	64.7 ± 2.1	67.3 ± 1.9	99.8 ± 1.9
Nurses handover (13:30-14:30 hours)	83.7 ± 3.8	58.1 ± 2.1	69.1 ± 1.8	63.4 ± 2.3	66.3 ± 1.9	98.8 ± 1.9
Nurses handover (20:00-21:00 hours)	83.2 ± 3.7	58.5 ± 2.2	69.7 ± 1.7	64.1 ± 2.0	66.8 ± 1.7	99.4 ± 1.7
Visiting time (12:30-13:00 hours)	83.0 ± 4.4	58.6 ± 1.8	69.5 ± 1.9	64.1 ± 2.1	66.7 ± 2.0	99.2 ± 2.0
Visiting time (17:00-17:30 hours)	83.0 ± 4.0	57.6 ± 2.2	68.6 ± 2.0	62.9 ± 2.3	65.8 ± 2.0	98.4 ± 2.0
Night time avg (22:00-6:00 hours)	81.1 ± 4.8	54.8 ± 2.7	65.9 ± 3.2	59.4 ± 3.0	63.1 ± 3.0	95.7 ± 3.0
Night time (1:00-2:00 hours)	79.6 ± 4.6	54.0 ± 2.8	64.5 ± 3.5	58.2 ± 3.0	61.8 ± 2.8	94.3 ± 2.8
Night time (2:00-3:00 hours)	79.9 ± 4.7	54.1 ± 2.7	64.8 ± 3.5	58.3 ± 2.9	62.1 ± 2.8	94.6 ± 2.8
Twilight (4:00-6:00 hours)	83.7 ± 4.3	55.9 ± 2.5	67.7 ± 2.5	60.9 ± 2.6	65.1 ± 2.4	97.6 ± 2.4

L10, L50, L90: Representing sound levels exceeding 10%, 50%, and 90% of the time, respectively; LEQ: Equivalent continuous noise level; Lmax: Maximum sound level; SEL: Sound exposure level.

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Citation: Gupta R, Chadha AS, Lakra H, Rehan R, Kalra R, Ray S. Noise quantification in the intensive care unit of a tertiary care hospital. World J Crit Care Med 2026; 15(2): 114240
URL: https://www.wjgnet.com/2220-3141/full/v15/i2/114240.htm
DOI: https://dx.doi.org/10.5492/wjccm.v15.i2.114240

Gupta R, Chadha AS, Lakra H, Rehan R, Kalra R, Ray S. Noise quantification in the intensive care unit of a tertiary care hospital. World J Crit Care Med 2026; 15(2): 114240 [PMID: 42272878 DOI: 10.5492/wjccm.v15.i2.114240]

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