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A multi-loci time-series descriptive study on noise levels in a pediatric emergency care department

Current Research in Public Health | Vol 5, Issue 1

Table 1. Sound Level and Over-standard Rate

time	loci	N	Mean (dB (A))	t	p	Rate(%)
daytime	1	8364713	72.1±8.6	5726.981	<0.01	95.5
	2	8431530	72.9±8.5	6164.885	<0.01	95.9
	3	8110336	72.8±9.6	5293.539	<0.01	95.5
	subtotal	24906579	72.6±8.9	9873.708	<0.01	95.6
nighttime	1	4182547	55.4±9.8	2170.123	<0.01	86.3
	2	4220908	56.6±9.2	2583.953	<0.01	95.4
	3	4000424	54.8±7.4	2654.917	<0.01	97.1
	subtotal	12403879	55.6±8.9	4191.907	<0.01	92.9