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Intensive Care Medicine Experimental

Table 1 Summary of pairwise comparison between the three experimental groups

From: An experimental model to measure the ability of headphones with active noise control to reduce patient’s exposure to noise in an intensive care unit

Group comparison

Mean noise difference (standard error)

95% confidence interval for difference

p value

Control vs NCHoff

2.67 (.66)

1.00–4.34

.001

Control vs NCHon

6.80 (.66)

5.12–8.47

< .001

NCHoff vs NCHon

4.13 (.66)

2.45–5.80

< .001

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