Observational Study
Copyright ©The Author(s) 2024.
World J Clin Pediatr. Sep 9, 2024; 13(3): 96018
Published online Sep 9, 2024. doi: 10.5409/wjcp.v13.i3.96018
Figure 1
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Figure 1 Key driver diagram. NICU: Neonatal intensive care unit; PDSA: Plan-Do-Study-Act.
Figure 2
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Figure 2 Hourly average noise level during the day and at night.
Figure 3
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Figure 3 Control chart of the daily average ambient noise level. Avg: Average; dB: Decibel; LCL: Lower control limit; LWL: Lower warning limit; PDSA: Plan-Do-Study-Act; UCL: Upper control limit; UWL: Upper warning limit.
Figure 4
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Figure 4 Control chart of the daily average ambient noise level. A: Plan-Do-Study-Act (PDSA) cycle 1; B: PDSA cycle 2; C: PDSA cycle 3. Avg: Average; dB: Decibel; LCL: Lower control limit; LWL: Lower warning limit; UCL: Upper control limit; UWL: Upper warning limit.
Figure 5
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Figure 5 Run chart of weekly average peak noise level.