Table 4 Averages (SD) for five selected noise level parameters for each hospital individually (nighttime) and averages for all hospitals during 24 h, day time (7am - 11pm), and night (11pm - 7am)
Auditory parameter | Site 1 | Site 2 | Site 3 | Site 4 | Site 5 | Site 6 | Average | ||
|---|---|---|---|---|---|---|---|---|---|
24 h | Day | Night | |||||||
LAeq (dBA, SD) | 46.3 (3.9) | 47.1 (5.8) | 51.7 (3.2) | 51.5 (2.2) | 49.8 (2.7) | 50.7 (1.5) | 54.0 (2.4) | 55.1 (2.3) | 49.2 (4.0) |
L90 (dBA, SD) | 35.9 (4.2) | 37.8 (1.9) | 42.0 (3.6) | 43.6 (1.9) | 36.2 (4.0) | 40.0 (2.7) | 38.1 (4.0) | 39.1 (3.9) | 38.4 (4.7) |
Peaks10S (count, SD) | 2.5 (3.3) | 4.1 (4.3) | 8.4 (7.0) | 8.8 (6.2) | 7.2 (6.6) | 7.2 (4.1) | 17.5 (8.0) | 23.1 (10.1) | 6.0 (6.1) |
Average number of restorative periods (count, SD) | 20.5 (5.9) | 15.9 (8.6) | 19.5 (4.8) | 18.4 (5.4) | 17.9 (7.7) | 19.6 (6.2) | 38.3 (12.5) | 19.4 (9.5) | 19.1 (6.4) |
Average durations of restorative periods (min, SD) | 12.6 (5.5) | 11.6 (5.5) | 17.6 (7.9) | 10.6 (2.1) | 15.1 (10.5) | 13.8 (5.5) | 12.9 (7.7) | 11.4 (9.4) | 14.1 (7.7) |