• Michael Menchine, Stephanie Oberfoell, David Schriger, Christopher Walker, Jeff Riddell, and Sanjay Arora.
• Department of Emergency Medicine, Keck School of Medicine of USC, Los Angeles, CA, USA. menchine@usc.edu
• Acad Emerg Med. 2013 May 1;20(5):456-62.

ObjectivesReliable telephone follow-up offers physicians a timely method to notify patients of unexpected laboratory and imaging results, clarify discharge instructions, evaluate health status changes, and potentially boost patient satisfaction. This study sought to determine if verifying telephone numbers, obtaining best contact times, and informing patients that they will be contacted would increase the proportion of emergency department (ED) patients contacted at 48 to 72 hours postdischarge. Secondary outcomes included estimating successful postdischarge follow-up across demographic categories.MethodsThis was a prospective, randomized controlled trial of adult patients in an inner-city, public hospital ED. Patients were excluded for critical illness, no telephone number, non-English- or non-Spanish-speaking, or anyone admitted as an inpatient. All subjects completed a demographic questionnaire. In the intervention arm, research assistants (RAs) verified the telephone number, obtained best contact times, and informed subjects that they would be called. In the control arm, telephone numbers were obtained from registration materials and were not verified, and subjects were not informed that postdischarge telephone calls were planned. RAs made four telephone attempts to contact each subject 48 to 72 hours after discharge.ResultsThe intervention did not significantly improve postdischarge contact. Most subjects, 72.8% in the intervention group and 68.2% in the control group, were successfully contacted (difference = 4.6%, 95% confidence interval [CI] = -2.2% to 11.4%). On multivariate analysis, Hispanic ethnicity and owning a mobile phone were associated with increased odds of successful postdischarge follow-up.ConclusionsVerifying contact information, obtaining best contact times, and notifying patients of impending follow-up calls did not substantially improve postdischarge telephone contact rates.© 2013 by the Society for Academic Emergency Medicine.

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