Table 3 Sound characteristics (11 subjects)
Sound values | 24-h night and day sleep | Day (08h00–22h00) | Night (22h00–08h00) | Day vs. night p |
|---|---|---|---|---|
Sound level, dBC | 72.2 [65.1–80.2] | 74.2 [68.1–80.2] | 70.2 [65.1–80.3] | 0.01 |
Sound typology | ||||
Alarm, n/h | 38 [25–51] | 22 [14–24] | 18 [15–23] | NS |
Mechanical respirators, n/h | 101 [50–120] | 55 [38–57] | 49 [41–62] | NS |
Talking; staff conversations, n/h | 28 [10–53] | 26 [9–43] | 5 [4–15] | 0.02 |
Other, n/h | 15 [7–25] | 10 [3–17] | 7 [4–10] | NS |