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Evaluation of a Critical Care Outreach Service in a Middle-Income Country: A Stepped Wedge Cluster Randomized Trial and Nested Qualitative Study Publisher Pubmed



Jeddian A1 ; Hemming K2 ; Lindenmeyer A2 ; Rashidian A3 ; Sayadi L1 ; Jafari N1 ; Malekzadeh R1 ; Marshall T2
Authors
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Authors Affiliations
  1. 1. Digestive Disease Research Institute, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Institute of Applied Health Research, University of Birmingham, Birmingham, B15 2TT, United Kingdom
  3. 3. School of Public Health, Tehran University of Medical Sciences, Tehran, Iran

Source: Journal of Critical Care Published:2016


Abstract

Purpose This trial evaluates implementation of critical care outreach in a middle-income country. Materials and methods Critical care outreach delivered by a team of intensive care nurses was implemented across general hospital wards in an Iranian university hospital. The order of implementation was randomized with wards stratified by predicted mortality rates. Effectiveness was evaluated using a stepped wedge cluster randomized controlled trial design, comparing outcomes between patients admitted before and after implementation. The primary outcomes were inhospital mortality and cardiopulmonary resuscitation. A nested qualitative study explored challenges to implementation and contextualized the trial outcomes. Results Between July 2010 and December 2011, 13 wards were sequentially randomized to implement the critical care outreach: 7802 patients were admitted before implementation and 10 880 after implementation. There were 370 deaths (4.74%) among patients admitted before implementation and 384 deaths (3.53%) after implementation. Adjusting for clustering and temporal trends, the odds ratio for mortality was 1.03 (95% confidence interval, 0.68-1.53). Results for other outcomes were broadly similar. Focus groups revealed a lack of endorsement of the intervention by management and ward nurses. Conclusions This pragmatic evaluation of critical care outreach in a middle-income country did not show a reduction in mortality or other outcomes. © 2016 Elsevier Inc.