• Magnolia Cardona-Morrell, Amanda Chapman, Robin M Turner, Ebony Lewis, Blanca Gallego-Luxan, Michael Parr, and Ken Hillman.
• The Simpson Centre for Health Services Research, South Western Sydney Clinical School, The University of New South Wales, P.O. Box 6087 UNSW, Sydney, NSW 1466, Australia. Electronic address: m.cardonamorrell@unsw.edu.au.
• Resuscitation. 2016 Dec 1; 109: 76-80.

AimTo investigate associations between clinical parameters - beyond the evident physiological deterioration and limitations of medical treatment - with in-hospital death for patients receiving Rapid Response System (RRS) attendances.MethodsRetrospective case-control analysis of clinical parameters for 328 patients aged 60 years and above at their last RRS call during admission to a single teaching hospital in the 2012-2013 calendar years. Generalised estimating equation modelling was used to compare the deceased with a randomly selected sample of those who had RRS calls and survived admission (controls), matched by age group, sex, and hospital ward.ResultsIn addition to a pre-existing order for limitation of treatment or cardiac arrest (OR 6.92; 95%CI 4.61-10.27), nursing home residence, proteinuria, advanced malignancy, acute myocardial infarction, chronic kidney disease, cognitive impairment and frailty were associated with high risk of death. After adjusting for all the clinical indicators investigated, the strongest risk factors for in-hospital death for patients with a RRS call were advanced malignancy (OR 3.95; 95%CI 2.16-7.21) and new myocardial infarction (OR 2.79; 95%CI 1.86-4.20). Patients with cognitive impairment, frailty indicator or chronic kidney disease were twice as likely to die as patients without those risk factors.ConclusionIn a sample of older deteriorated patients requiring a RRS attendance, multiple indicators of chronic illness, cognitive impairment and frailty were significantly associated with high risk of death. These clinical features beyond the evident orders for limitation of medical treatment should signal the need for clinicians to initiate end-of-life discussions that may prevent futile interventions.Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

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