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Index
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Methodological Constraints and ConcernsAlthough the science of EMS has advanced, many concerns remain. Most of the problems are not very different than issues with which other fields of medicine have struggled. For example, there are not enough controlled clinical trials of new treatments for patient problems encountered by EMS professionals. One methodological concern in EMS research is that the best outcome measures for various study questions are not clear.55 While survival may be an appropriate outcome measurement for sudden cardiac arrest, it would not be a meaningful outcome measurement for studies of minor trauma or respiratory distress because almost all patients will survive independent of any EMS intervention. Further, appropriate measurements of pediatric patient outcomes are sometimes different from those that are commonly used for adults.33 |