Table 2: Noise data.

Max. dB Min. dB Mean dB % Time > 80 dB % Time > 70 dB % peak > 100 dB Highest Peak (dB)
Mean 84.5 55.5 62.7 0.08 1.2 6.3 133.3
SD 5.8 4.4 2.1 0.08 1 4 11.1
Min. 70.3 46.7 59.3 0 0.1 2.5 115.4
Max. 90.5 61.8 67.2 0.25 3.7 17.5 145.3
Max.: Maximum; Min.: Minimum.
% Time > 80 dB: The percentage of time the noise level at the bedside was > 80 dB; Highest peak: The highest noise level recorded instantaneously at any time at the bedside.