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Figure 2a: Mean noise levels per hour (with 95% confidence intervals) in a pediatric hospital room.
Figure 2b: Frequency of noise spikes in a pediatric hospital room that are above thresholds previously associated with night wakings (>80 dB and SLCs >17.5 dB) per week.
Figure 2c: Mean light levels per hour (with 95% confidence intervals) in a pediatric hospital room.
Figure 2d: Average percent of time hospitalized patients spent in inappropriate light conditions across the 24-hour day.
