Author Contributions: Dr Nichol had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Nichol, Aufderheide, Davis, Idris.
Acquisition of data: Callaway, Hedges, Aufderheide, Brown, Dreyer, Idris, Lowe, Stiell.
Analysis and interpretation of data: Nichol, Thomas, Callaway, Hedges, Aufderheide, Rea, Lowe, Davis, Stiell.
Drafting of the manuscript: Nichol, Thomas.
Critical revision of the manuscript for important intellectual content: Callaway, Hedges, Aufderheide, Rea, Lowe, Brown.
Statistical analysis: Nichol, Thomas.
Obtained funding: Nichol.
Administrative, technical, or material support: Callaway, Hedges, Aufderheide, Brown, Dreyer, Idris, Lowe, Stiell.
Study supervision: Nichol.
Financial Disclosures: Dr Nichol reported that he is a member of the American Heart Association ACLS Subcommittee and the Medic One Foundation board of directors; has received research grants from the National Institutes of Health (NIH); has received equipment donations to support overseas medical missions from Laerdal Inc and Medtronic Physio-Control Inc; has received travel expenses payments from INNERcool Inc and Radiant Medical Inc; and has served as a consultant to Northfield Laboratories Inc and Paracor Medical Inc. Dr Callaway reported that he is a member of the American Heart Association ACLS Subcommittee; has received research grants from the NIH and the American Heart Association; has received equipment donations to support laboratory research from Medivance Inc; and is named as a coinventor on patents related to ventricular fibrillation waveform analysis. Dr Aufderheide reported that he is a member of the American Heart Association BLS Subcommittee; has received research grants from the NIH; and has served as a consultant to Take Heart America, JoLife, and Medtronic. Dr Brown reported that he has received research grants from the NIH, the Alabama Department of Public Health, and the Centers for Disease Control and Prevention; has received salary from the South Central Center for Public Health Preparedness to teach the “Blast Injuries” course throughout Alabama; and has received an equipment loan from Medtronic Physio-Control Inc for ROC. Dr Rea reports that he is a member of the American Heart Association BLS Subcommittee and has received research grants from the NIH. Dr Davis reports that he has received research grants from the NIH, ZOLL, and Cardinal Health. No other disclosures were reported.
Funding/Support: This study was supported by a cooperative agreement (grants 5U01 HL077863, HL077881, HL077871, HL077873, HL077872, HL077866, HL077908, HL077867, HL077885, and HL077885) with the National Heart, Lung, and Blood Institute in partnership with the National Institute of Neurological Disorders and Stroke, the Canadian Institutes of Health Research Institute of Circulatory and Respiratory Health, Defence Research and Development Canada, the American Heart Association, and the Heart and Stroke Foundation of Canada. Medtronic Physio-Control Inc loaned equipment to several EMS agencies participating in the Alabama ROC site. These devices were used routinely in the course of the EMS duties and were not exclusively for ROC, but they were also used with ROC patients.
Role of the Sponsor: The funding organizations had no role in the collection, management, analysis, and interpretation of the data or the preparation of the manuscript. A representative of the NIH reviewed and approved the manuscript.