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Bias in Epidemiological Studies01:29

Bias in Epidemiological Studies

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Biases can arise at various stages of research, from study design and data collection to analysis and interpretation. Recognizing and addressing these biases is essential to ensure the validity and reliability of epidemiological findings.Broadly speaking, biases in epidemiology fall into three main categories: selection bias, information bias, and confounding. A more detailed description of possible biases is:  
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Racial Differences and Injury Pattern Variation: Impact of COVID-19 on a Bronx Trauma Center.

Risa N Kiernan1, Madison S Salvitti1, Gerard Baltazar2

  • 1Department of Clinical Specialties, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, USA.

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Summary

During COVID-19, trauma centers in the Bronx saw shifts in patient demographics and injury types, with increases in Black patients and penetrating injuries. These findings aid trauma center pandemic planning and community outreach.

Keywords:
COVID-19mechanism of injurytrauma demographicstrauma outcomes

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Area of Science:

  • Public Health
  • Trauma Surgery
  • Epidemiology

Background:

  • New York City (NYC) was the epicenter of the COVID-19 pandemic in 2020.
  • The Bronx, facing socioeconomic challenges and a large minority population, was at higher risk for COVID-19 impacts.
  • Understanding trauma trends during the pandemic is crucial for vulnerable populations.

Purpose of the Study:

  • To examine temporal associations between COVID-19 and trauma admissions in the Bronx.
  • To analyze changes in patient demographics and mechanisms of injury (MOI) during the pandemic.
  • To inform future public health and trauma care strategies.

Main Methods:

  • Retrospective review of prospectively collected data from a Bronx Level II trauma center.
  • Comparison of trauma admissions from January 1st-September 30th, 2019 (Pre-COVID) and 2020 (COVID).
  • Subgroup analysis of EARLY (March-May) and LATE (June-September) COVID periods.

Main Results:

  • Trauma admission volumes remained similar, but patient demographics shifted during COVID-19.
  • Increased proportion of Black patients (Hispanic and Non-Hispanic), younger patients, and out-of-pocket payors were observed.
  • A rise in penetrating injuries, motor vehicle collisions (MVCs), and firearm injuries occurred during COVID-19, with a resurgence in late 2020.

Conclusions:

  • Significant variations in MOI and racial demographics of trauma admissions were noted in the Bronx during the COVID-19 pandemic.
  • Findings highlight the need for targeted interventions and resource allocation in vulnerable communities.
  • Results can guide trauma centers in pandemic preparedness and foster community-level collaborations post-disaster.