A national survey of observation units in the United States.

@article{Mace2003ANS,
  title={A national survey of observation units in the United States.},
  author={Sharon Elizabeth Mace and Louis Graff and Michael Mikhail and Michael I Ross},
  journal={The American journal of emergency medicine},
  year={2003},
  volume={21 7},
  pages={529-33}
}
The objective of this study was to survey the use of observation units (OUs) in the United States. A written survey was mailed to every third hospital (sequential by zip code) in the United States. There was a 32.9% response to the survey (522 of 1588 hospitals). A total of 18.8% of hospitals had an OU with another 11.6% planning to open an OU. Those hospitals that had OUs had a higher overall ED census, higher rate of diversion of ambulances, and were more likely to be in metropolitan areas (P… CONTINUE READING

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