Challenges to Behavioral Health and Injury Surveillance During the COVID-19 Pandemic | Psychiatry and Behavioral Health | JAMA Psychiatry | JAMA Network
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Comment & Response
June 9, 2021

Challenges to Behavioral Health and Injury Surveillance During the COVID-19 Pandemic

Author Affiliations
  • 1National Institute of Mental Health, Bethesda, Maryland
JAMA Psychiatry. 2021;78(8):924-925. doi:10.1001/jamapsychiatry.2021.1201

To the Editor The study by Holland et al1 reports trends in emergency department (ED) visits involving mental health and substance use, including deliberate self-harm, unintentional overdose and other injuries, and assault, before and during the COVID-19 pandemic. The authors report 2 metrics for each time period, using data from the National Syndromic Surveillance Program (NSSP) at the US Centers for Disease Control and Prevention (CDC): the absolute number of ED visits of a given type and the rate of ED visits of a given type per 100 000 ED visits of all types.

We share the authors’ interest in assessing the possible effects of the pandemic on behavioral health and injury outcomes. But we find it difficult to draw clear inferences from the present findings for 2 main reasons. First, as the authors mention briefly, the number of hospitals reporting to the NSSP rose across the study period. The study did not adjust for this by restricting to a common set of hospitals, as the authors suggest future research should do, or by standardizing for or at least reporting for readers the number of hospitals participating each month. This makes it difficult to interpret trends in absolute visit counts, particularly for outcomes such as deliberate self-harm, for which absolute counts remained below prepandemic levels for most or all of the study period (despite the number of hospitals reporting to NSSP rising).

Second, we see no clear way to draw inferences between the type of rate the study reports—for example, ED visits for self-harm per 100 000 total ED visits—and the rates of most immediate public health interest, that is, ED visits and events associated with self-harm per unit population. In particular, while it might have been plausible before March 2020 to assume that general patterns of ED care-seeking were mainly consistent over time, this has definitely not been the case during the COVID-19 pandemic—not for ED visits overall, as the study by Holland et al1 documents, nor for even highly emergent issues, such as myocardial infarction, stroke, and appendicitis.2,3

The COVID-19 pandemic has simultaneously increased the importance of timely public health surveillance of behavioral health and made it more challenging. Retrospective surveys may ultimately help fill gaps in our understanding of outcomes in 2020. Additional innovation may be needed to enhance relevant surveillance approaches during future emergencies.

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Article Information

Corresponding Author: Michael Schoenbaum, PhD, Division of Services and Intervention Research, National Institute of Mental Health, 6001 Executive Blvd, Bethesda, MD 20892 (schoenbaumm@mail.nih.gov).

Published Online: June 9, 2021. doi:10.1001/jamapsychiatry.2021.1201

Conflict of Interest Disclosures: None reported.

Disclaimer: The views expressed here are those of the authors, and not necessarily of the National Institutes of Health, the Department of Health and Human Services, or the US government.

References
1.
Holland  KM, Jones  C, Vivolo-Kantor  AM,  et al.  Trends in US emergency department visits for mental health, overdose, and violence outcomes before and during the COVID-19 pandemic.   JAMA Psychiatry. 2021;78(4):372-379. doi:10.1001/jamapsychiatry.2020.4402PubMedGoogle ScholarCrossref
2.
Lange  SJ, Ritchey  MD, Goodman  AB,  et al.  Potential indirect effects of the COVID-19 pandemic on use of emergency departments for acute life-threatening conditions—United States, January-May 2020.   MMWR Morb Mortal Wkly Rep. 2020;69(25):795-800. doi:10.15585/mmwr.mm6925e2PubMedGoogle ScholarCrossref
3.
Bhambhvani  HP, Rodrigues  AJ, Yu  JS, Carr  JB  II, Hayden Gephart  M.  Hospital volumes of 5 medical emergencies in the COVID-19 pandemic in 2 US medical centers.   JAMA Intern Med. 2021;181(2):272-274. doi:10.1001/jamainternmed.2020.3982PubMedGoogle ScholarCrossref
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