Table 4 Summary of sound data for bedspaces 1, 2, and 3. dBA; A-weighted decibel, Range; minimum–maximum, SD; standard deviation
From: Evaluation of the sensory environment in a large tertiary ICU
| Â | Bedspace 1 | Bedspace 2 | Bedspace 3 |
|---|---|---|---|
Mean sound levels [SD, range] (dBA) | 63.75 [3.67, 56.40–86.40] | 56.80 [6.16, 41.70–83.80] | 59.71 [6.07, 40.30–81.30] |
Mean sound levels—daytime [SD, range] (dBA) | 64.33 [3.61, 56.40–86.40] | 59.52 [4.98, 42.50–83.80] | 62.48 [4.26, 43.50–81.30] |
Mean sound levels—night-time [SD, range] (dBA) | 62.58 [3.50, 57.10–79.60] | 51.35 [4.46, 41.70–76.40] | 54.17 [5.28, 40.30–77.30] |
Highest recorded peak max sound level (dBA) | 104.0 | 105.6 | 102.6 |
Mean hourly acoustic interruptions > 17 dBA [SD, range] (count) | 1.28 [1.72, 0–11] | 3.65 [2.66, 0–17] | 4.25 [3.19, 0–24] |
Mean hourly acoustic interruptions > 17 dBA—daytime [SD, range] (count) | 1.53 [1.83, 0–11] | 3.41 [2.52, 0–17] | 3.45 [2.57, 0–16] |
Mean hourly acoustic interruptions > 17 dBA—night [SD, range] (count) | 0.77 [1.37, 0–9] | 4.13 [2.84, 0–14] | 5.85 [3.67, 0–24] |
Mean hourly peak counts > 80 dBA [SD, range] (count) | 7.74 [8.62, 0–47] | 3.30 [4.24, 0–26] | 6.29 [6.10, 0–36] |
Mean hourly peak counts > 80 dBA—daytime [SD, range] (count) | 9.48 [8.39, 0–37] | 4.56 [4.58, 0–26] | 8.37 [6.07, 0–36] |
Mean hourly peak counts > 80 dBA—night-time [SD, range] (count) | 4.24 [7.98, 0–47] | 0.76 [1.48, 0–11] | 2.11 [3.44, 0–24] |