Evidence map›Paper›PMID 34403865›Full record

ArticleThe International journal on drug policy2021

Using a "Big Events" framework to understand emergency department use among women experiencing homelessness or housing instability in San Francisco during the COVID-19 pandemic.

Elise D Riley, Maria C Raven, Samantha E Dilworth, Carl Braun, Elizabeth Imbert, Kelly M Doran

Open access · greenAbstract read
In one paragraph

Article in The International journal on drug policy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.6field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 11 citations in OpenAlex.

  1. Socioenvironmental disasters and the dialectics of overdose mortality.The International journal on drug policy · 2026
    Article
  2. Article
  3. Historical and theoretical roots of the big events framework.The International journal on drug policy · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Elise D RileyUniversity of California, San Francisco, Department of Medicine, Division of HIV, Infectious Diseases and Global Medicine, San Francisco, CA, USA. Electronic address: Elise.Riley@UCSF.edu.
Maria C RavenUniversity of California, San Francisco, Department of Emergency Medicine and UCSF Philip R. Lee Institute for Health Policy Studies, San Francisco, CA, USA.
Samantha E DilworthUniversity of California, San Francisco, Department of Medicine, Center for AIDS Prevention Studies, San Francisco, CA, USA.
Carl BraunUniversity of California, San Francisco, Department of Medicine, Division of HIV, Infectious Diseases and Global Medicine, San Francisco, CA, USA.
Elizabeth ImbertUniversity of California, San Francisco, Department of Medicine, Division of HIV, Infectious Diseases and Global Medicine, San Francisco, CA, USA.
Kelly M DoranNew York University School of Medicine, Ronald O. Perelman Department of Emergency Medicine and Department of Population Health, New York, NY, USA.
University of California, San Francisco · USNew York University · USSan Francisco AIDS Foundation · US

Funding

Impact of Cocaine and Polydrug Use on Cranial Small Vessel DiseaseR01DA037012 · NIDA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI RILEY, ELISE D. · 2014 to 2018
$4.1M
Cocaine use, viral suppression and precursors of stroke in HIV infectionR01DA049648 · NIDA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI RILEY, ELISE D. · 2020 to 2024
$4.0M
Mentoring patient-oriented research on the health consequences of polydrug useK24DA039780 · NIDA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI RILEY, ELISE D. · 2015 to 2025
$1.9M
NIDA NIH HHS K24 DA039780NIDA NIH HHS R01 DA037012NIDA NIH HHS R01 DA049648
6 · The paper itself

Abstract

backgroundThe COVID-19 pandemic created a major public health crisis that disrupted economic systems, social networks and individual behaviors, which led to changes in patterns of health care use. Factors associated with emergency department (ED) visits during the pandemic among especially high-risk individuals are unknown. We used a "Big Events" approach, which considers major disruptions that create social instability, to investigate ED use in people experiencing homelessness or housing instability, many of whom use drugs.

methodsBetween July and December 2020, we conducted a community-based San Francisco study to compare homeless and unstably housed (HUH) women who did and did not use an ED during the first 10 months of the pandemic.

resultsAmong 128 study participants, 34% had ≥1 ED visit during the pandemic. In adjusted analysis, factors significantly associated with ED use included experiencing homelessness, cocaine use and increased difficulties receiving drug use treatment during the pandemic.

conclusionThese findings build on the "Big Events" approach to considering risk pathways among people who use drugs. They suggest the importance of ensuring access to housing and low-barrier non-COVID health services, including drug treatment, alongside crisis management activities, to reduce the health impacts of public health crises.

Indexed as

COVID-19Ill-Housed PersonsEmergency Service, HospitalFemaleHousingHumansPandemicsSan FranciscoSARS-CoV-2COVID-19Emergency departmentHomelessUnshelteredWomen

Identifiers

PMID34403865
PMCPMC8581479
OpenAlexW3188826708

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.