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Table 4 Multinomial logistic regression between sleep stage and sound (dBC)

From: Sound level intensity severely disrupts sleep in ventilated ICU patients throughout a 24-h period: a preliminary 24-h study of sleep stages and associated sound levels

 

Night (22h00–08h00)

Day (08h00–22h00)

OR (95% CI)

OR (95% CI)

Awakenings

1.0 (–)

1.0 (–)

N1

0.93 (0.93–0.94)***

0.97 (0.96–0.97)***

N2

0.95 (0.94–0.96)***

0.97 (0.96–0.97)***

N3

1.01 (1.00–1.02)

1.00 (0.99–1.01)

REM

0.91 (0.88–0.91)***

0.96 (0.95–0.97)***

  1. OR (95% CI) odds ratio and 95% confidence interval
  2. p < 0.05; *** p < 0.001