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In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis:
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The vertical distance between the actual value of y and the estimated value of y. In other words, it measures the vertical distance between the actual data point and the predicted point on the line
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A contingency table provides a way of portraying data that can facilitate calculating probabilities. It is a method of displaying a frequency distribution as a table with rows and columns to show how two variables may be dependent (contingent) upon each other; The table helps determine conditional probabilities quite quickly and can help systematically organize, analyze and quantify data. The table displays sample values concerning two variables that may be dependent or contingent on one...
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Causality or causation is a fundamental concept in epidemiology, vital for understanding the relationships between various factors and health outcomes. Despite its importance, there's no single, universally accepted definition of causality within the discipline. Drawing from a systematic review, causality in epidemiology encompasses several definitions, including production, necessary and sufficient, sufficient-component, counterfactual, and probabilistic models. Each has its strengths and...
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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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Homelessness, Politics, and Policy: Predicting Spatial Variation in COVID-19 Cases and Deaths.

Hilary Silver1, Rebecca Morris2

  • 1Department of Sociology, Columbian College of Arts & Sciences, George Washington University, Washington, DC 20052, USA.

International Journal of Environmental Research and Public Health
|February 25, 2023
PubMed
Summary

Homelessness and COVID-19 outcomes varied. While some factors increased COVID-19 cases and deaths, areas with more unsheltered homelessness surprisingly saw fewer COVID-19 deaths, suggesting complex policy and community influences.

Keywords:
COVID-19Continuum of Carehomelesshousing

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Area of Science:

  • Public Health
  • Epidemiology
  • Sociology

Background:

  • COVID-19 public health orders disproportionately affected individuals experiencing homelessness, particularly those unsheltered.
  • The spatial relationship between homelessness and COVID-19 transmission and mortality requires investigation.

Purpose of the Study:

  • To examine the association between spatial variations in unsheltered homelessness and cumulative COVID-19 cases and deaths.
  • To explore the influence of socioeconomic factors and local policies on pandemic outcomes within Continuums of Care (CoCs).

Main Methods:

  • Analysis of COVID-19 case and death data in relation to homelessness metrics across U.S. Continuums of Care (CoCs).
  • Statistical examination of the correlation between unsheltered homelessness rates and COVID-19 outcomes.
  • Inclusion of variables such as welfare households, internet access, disability status, volunteering, political affiliation, and housing/transportation policies.

Main Results:

  • CoCs with higher rates of households receiving welfare, lacking internet, and having more disabled residents showed increased COVID-19 cases and deaths.
  • Counterintuitively, CoCs with greater unsheltered homelessness exhibited fewer COVID-19-related deaths.
  • Increased volunteering and a higher share of votes for the 2020 Democratic presidential candidate were associated with fewer COVID-19 cases and deaths.

Conclusions:

  • Local political and social factors, including community sentiment and compliance, may influence COVID-19 outcomes among homeless populations.
  • The bicoastal pattern of homelessness and policy responses may explain the unexpected inverse relationship between unsheltered homelessness and COVID-19 mortality.
  • Factors like shelter beds, public housing, group quarters, and public transit use did not independently correlate with pandemic outcomes.