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Table 2 Sound levels averaged over 24 hoursa

From: An investigation of sound levels on intensive care units with reference to the WHO guidelines

Location and day Central station Adjacent to patient
John Radcliffe Hospital Adult ICU weekday 58.4 dB 59.7 dB
John Radcliffe Hospital Adult ICU weekend 59.1 dB 59.5 dB
Royal Berkshire Hospital ICU weekday 58.7 dB 59.9 dB
Royal Berkshire Hospital ICU weekend 57.7 dB 58.5 dB
Wycombe General Hospital ICU weekday 52.4 dB 55.4 dB
Wycombe General Hospital ICU weekend 51.3 dB 54.1 dB
John Radcliffe Neurosciences ICU weekday 58.0 dB 58.8 dB
Churchill Hospital Adult ICU weekend 55.7 dB 55.4 dB
  1. adB, decibel. Sound levels averaged over 24 hours for each site. At the John Radcliffe Hospital, the Royal Berkshire Hospital and Wycombe General Hospital, two recordings were measured: on a weekday day and night and on a weekend day and night. Only one recording was taken at the Neurosciences ICU and the Churchill Hospital ICU in Oxford.