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Table 6 Influence of sound sources on sleep stages transitions and arousals. (Supplementary material)

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

 

Day (08h00–22h00) ORa (95% IC)

Night (22h00–08h00) ORa (95% IC)

Alarm, n/h

1.9 (1.5–2.4)

1.9 (1.5–2.4)

Mechanical respirators, n/h

2.6 (2.3–2.9)

1.8 (2.3–2.9)

Talking; staff conversations, n/h

2.0 (1.6–2.4)

2.0 (1.6–2.4)

Other, n/h

1.9 (1.5–2.4)

1.8 (1.8–3.2)

Arousals

 Alarm, n/h

4.9 (3.4–6.7)

9.8 (8.6–11.3)

 Mechanical respirators, n/h

7.4 (6.1–8.7)

10.9 (9.8–11.9)

 Talking, staff conversations, n/h

3.0 (2.4–3.6)

5.2 (4.5–6.1)

 Other, n/h

3.8 (2.3–6.3)

8.4 (6.9–10.1)

  1. ORa OR adjusted for subject, hour and age