• Nicholas A Moore, Natasha Wiggins, and Joe Adams.
• The Royal London Hospital, London, UK nickyamoore@googlemail.com.
• Palliat Med. 2015 Apr 1;29(4):380-5.

BackgroundThe European Resuscitation Council Guidelines recognise that there is a lack of direct evidence for the effect of age on outcome following cardiopulmonary resuscitation.AimTo determine the role that advancing age plays in the decision by clinicians to complete a do not attempt cardiopulmonary resuscitation order based on perceived futility.DesignA questionnaire-based trial. Clinicians were randomly assigned to receive one of two versions of a patient case, varying in age but otherwise identical (90 years vs 60 years). Participants were asked to decide whether a do not attempt cardiopulmonary resuscitation form should be completed based on perceived futility for a single patient case. Rates of do not attempt cardiopulmonary resuscitation order were compared between groups.ParticipantsConsultant physicians, surgeons and anaesthetists from 12 district general hospitals in England.ResultsIn total, 291 questionnaires were returned. Overall, clinicians were significantly more likely to complete a do not attempt cardiopulmonary resuscitation form for a 90-year-old patient than a 60-year-old patient, when all other factors are equal (67.7% vs 7.4%, p < 0.001). This finding was consistent across speciality and experience level of the consultant. Surgeons were found to be significantly less likely to complete a do not attempt cardiopulmonary resuscitation order in the 90-year-old patient compared to other consultants (46.4% vs 74.1%, p < 0.001). Anaesthetists were more likely than other consultants to complete a do not attempt cardiopulmonary resuscitation order in the 60-year-old patient (17.8% vs 4.3%, p < 0.05).ConclusionAge is a highly significant independent factor in a clinicians' decision to withhold cardiopulmonary resuscitation. We highlight a potential gap between current practice and supporting evidence base.© The Author(s) 2015.

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