Table 16.2other inputs used in base case analysis in the economic model

Model inputPoint Estimate (95% CI)Source
Baseline risk
Delirium in hospital (general medicine services)15.0%Inouye 1999
Delirium in hospital (hip fracture surgery)50.0%Marcantonio 2000
Unit cost
New dementia (per year)£16,302Dementia UK, The full report, 2007
Stay in long-term care (per week)£656PSSRU 2007, Netten 1998
Pressure ulcer£1,364 (£1,228 to £1,500)*Bennett 2004
Falls£1,875Iglesias 2008
Utility
New dementia0.29Ekman 2007 (reported 0.4 for moderate dementia)
New admission to institution0.18Ekman 2007 (reported 0.25 for moderate dementia, GDG suggested it should be used to estimate utility for this outcome)
Falls0.69Hendriks 2008 (reported 0.71 after 12 months)
Duration
Stay in long-term care (months)18.9Netten 2001
Extended hospital stay (days)16.83 (9.36, 25.34)Holmes & House 2000
Life with dementia (years)1.2McNamee 2001
Intervention Efficacy
MTI (general medical services)0.66 (0.46, 0.95)Inouye 1999
MTI (hip fracture surgery)0.65 (0.42, 1)Marcantonio l 2000
Intervention Cost
MTI (medical services)£377Based on study protocol in Inouye 1999
MTI (hip fracture surgery)£511Based on study protocol in Marcantonio 2000
*

Reported as mean (+ and − 10%)

From: 16, Health economic models: cost-effectiveness analyses of delirium prevention and pharmacological treatment

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