Table 5.6Sensitivity analysis

Healthcare settingNo. of studiesPrevalence % (median, Range)Incidence % (median, Range)Occurrence Rate % (median, Range)Total delirium % (median, range)
General Medicine1621.4 (18 – 32.6)15.2 (12.5 – 17.9)22 (5.742)
4 removed
25 (1542)
1 removed
Stroke Medicine212No data available24.324.3
HIV/AIDS Medicine2No data availableNo data available12 (1 removed)12 (1 removed_
Medical ICU736.624.480 (4883.3)
1 removed
70.9 (4883.3)
Surgical ICU4No data availableNo data available44 (29.870)
1 removed
36.9 (29.844)
1 removed
Trauma ICU1No data availableNo data available59 (low quality)No data available
General ICU3No data availableNo data available31.8(19 – 45)38.4 (31.8 – 45)
Emergency Department49.8 (9.6 – 11.1)No data availableNo data available9.8 (9.6 – 11.1)
General Surgery5No data availableNo data available9 (911.4)
2 removed
No data available
Orthopaedics (Acute Hip Fracture)1023.1 (16.529.7)
1 removed
1 removed
28.3 (9.541)
4 removed
35 (2941)
2 removed
Orthopaedics (Elective)3No data availableNo data available13.6 (12.5 – 14.7)
1 removed
No data available
Orthopaedics (Spinal Surgery)1No data availableNo data available3.8No data available
Cardiac Surgery5No data availableNo data available21 (13.533.6)
2 removed
No data available
Vascular Surgery2No data availableNo data available29.1 (1 removed)No data available
Neurosurgery1No data availableNo data available14.914.9
Hepatobiliary1No data availableNo data available17No data available
Urology1No data availableNo data available7No data available
Gynaecology1No data availableNo data available17.5 (low quality)No data available
Psychiatry1No data availableNo data available2.8No data available
Long-term care115.9 (low quality)No data available15.9 (low quality)No data available

(low quality studies removed, amended data highlighted in bold with number of low quality studies removed)

From: 5, Epidemiology

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Delirium: Diagnosis, Prevention and Management [Internet].
NICE Clinical Guidelines, No. 103.
National Clinical Guideline Centre (UK).
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