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Updated: May 28, 2026

Trajectory Data Analyses for Pedestrian Space-time Activity Study
Published on: February 25, 2013
Identifying trajectories across care modalities before and after COVID-19 using sequence analysis
Taylor Rapson1,2, Kathryn E Kemper-McIsaac3, Elizabeth B Sherwin3
1Department of Health Systems and Population Health, University of Washington, Seattle, WA, USA.
The COVID-19 pandemic accelerated virtual care, but its long-term effects on healthcare utilization are unclear. Analysis of diabetes patients shows disparities in accessing digital and in-person care, highlighting the need for equitable telehealth strategies.
Area of Science:
- Health Services Research
- Digital Health
- Health Equity
Background:
- The COVID-19 pandemic significantly increased virtual care adoption.
- Longitudinal impacts of virtual care on healthcare utilization remain understudied.
- Understanding patient stratification in digital and in-person care is crucial.
Purpose of the Study:
- To classify outpatient utilization patterns in adults with diabetes using multichannel sequence analysis.
- To examine how virtual care adoption affects different demographic and clinical groups.
- To identify populations at risk of reduced access in expanding remote care models.
Main Methods:
- Multichannel sequence analysis applied to outpatient utilization data.
- Classification of 10,671 adult patients with diabetes.
- Analysis of primary and diabetes care visits (remote and in-person) from April 2019 to March 2023.
- Stratification by race, ethnicity, language preference, insurance, comorbidity, and portal engagement.
Main Results:
- Patients transitioning to digital care were disproportionately Black or White, Medicare beneficiaries, with higher comorbidity.
- Individuals increasing combined in-person and remote utilization were disproportionately Hispanic, Spanish-preferring, with greater disease burden.
- Patients decreasing utilization were predominantly Asian, preferred Chinese, and had low patient portal engagement.
Conclusions:
- Technology-enabled care models can improve access but may exacerbate disparities.
- Certain populations face risks of reduced healthcare access with expanding telehealth.
- Health systems need targeted interventions for equitable telehealth access, addressing digital exclusion.
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