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[Preprint]. 2024 Feb 6:2024.02.04.24302242. [Version 2] doi: 10.1101/2024.02.04.24302242

Table 3 -.

SDoH-driven Translational Research: Deriving and Translating Actionable Knowledge into Clinical Care

SDoH Screening Tools SDoH Data Collection and Documentation NLP in SDoH SDoH and Health outcomes SDoH Interventions

SDoH Domains Assessed
 • Most common elements screened were housing instability/insecurity, food insecurity, transportation needs, utility needs, financial resource strain, interpersonal safety issues.
 • Other factors included social isolation, health literacy, education level, employment status.
 • Tools targeted a range of personal and structural determinants.
Screening Approaches
 • Majority utilized home-grown, customized questionnaires rather than standardized validated instruments.
 • Most common existing tools referenced were PRAPARE, CMS Accountable Health Communities, and NAM recommendations.
 • Both active screening by staff and passive self-report methods used.
Settings
 • Implemented across varied clinical settings - primary care, EDs, inpatient units, community health centers.
 • Some population-based screening at schools or by telephone.
Effectiveness
 • Broad feasibility shown across populations and settings to identify unmet social needs.
 • More evidence needed regarding interventions to address identified needs.
Key Next Steps
 • Expanding regular screening with validated tools tied to follow-up resources.
 • Increasing structural screening and community-clinical linkages.
 • Integrating social needs data with EHRs and longitudinal outcomes.
Data Sources
 • The most common external SDoH data sources linked to EHRs were census and community survey data (at both patient/individual and area/neighborhood levels), administrative data like claims records, and disease registries.
 • Other sources included geospatial data, crime statistics, built environment data, education data, and proprietary population health databases.
 • Some studies used qualitative interviews or surveys to gather additional patient SDoH information not found in the EHR.
SDoH Elements
 • External data provided various socioeconomic factors (income, education, employment, poverty level), neighborhood variables (segregation, safety, walkability), and health behaviors (diet, exercise, smoking).
 • These complemented and expanded the individual-level SDoH data (food/housing security, transportation, interpersonal violence, etc.) captured directly in EHRs.
Linkage Approaches
 • Technical approaches to integrate external SDoH data with EHRs included geocoding patient addresses, aggregating community variables to patients, and direct linkage using unique identifiers.
 • Integration enabled richer patient- and population-level SDoH data for risk stratification, outcomes research, social care coordination, and addressing health disparities.
Gaps & Challenges
 • More work is still needed to systematically collect, link, analyze, and act upon SDoH data from external sources together with EHR data.
Methods Used
 • Most common NLP approaches were rule-based systems using regular expressions or lexicons and supervised machine learning models like CNNs, LSTMs, SVMs, and ensembles.
 • Recent studies utilized pretrained contextual models like BERT which showed promising performance.
 • Both generic NLP libraries (spaCy) and custom systems tailored to SDoH were tested.
Performance
 • Accuracy ranged widely based on model type and SDoH category but precision and recall generally over 80% for housing, occupation, and some social risks.
 • Simple models had high precision but lower sensitivity in identifying key SDoH entities. Advanced neural networks improved recall.
 • Overall, NLP could identify more SDoH data than structured EHR fields alone.
Applications
 • Inferring patients’ social risks, socioeconomic status, and exposures to guide interventions.
 • Predicting outcomes like hospital readmissions, suicide risk, and future healthcare utilization.
 • Enriching datasets for disparities research and population health surveillance.
Limitations & Next
Steps
 • Better standardized corpora for model development and testing are needed.
 • Methods to efficiently integrate NLP pipelines into clinical workflows rather than one-off analyses.
 • Domain ontologies and shareable custom systems for SDoH extraction from notes.
Outcomes Assessed
 • Most common outcomes examined were healthcare utilization (ED visits, hospitalizations, readmissions), chronic disease control (diabetes, hypertension, CVD), and COVID-19 severity.
 • Other outcomes included cancer screening/treatment, obesity/BMI, mortality, mental health, substance use disorders, and patient-reported metrics.
SDoH Factors
 • Frequently measured SDoH elements were neighborhood disadvantage, food/housing insecurity, access to care/insurance, education, income, and social support.
 • Race/ethnicity, immigrant status, and geographic factors were also analyzed as social determinants.
Analytical Approaches
 • Regression models evaluated associations between SDoH factors and outcomes. Some prediction models incorporated both clinical and social variables.
 • Studies linked area-level SDoH data from census and surveys to individual-level EHR data.
Key Findings
 • Multiple studies found socioeconomic deprivation, insecure housing, lack of social support, and similar factors increased risk for adverse outcomes.
 • But overall evidence was mixed, highlighting context-specific impacts. More research is needed on mechanisms.
Types of Interventions
 • Most common interventions were social programs like community health initiatives, resource referrals/patient navigation services, integrated care management, and group education sessions.
 • Some studies allocated additional resources like medical staff or equipment.
 • A few tested policy changes or system-level practice transformations.
Implementation Levels
 • Interventions operated at the community, hospital/clinic, or health system level.
 • Community programs enabled broader reach and incorporation of public health principles.
 • Clinic-based initiatives allowed better integration with healthcare delivery.
Components
 • Roughly half emphasized family/peer support and social connections as part of the intervention.
Outcomes
 • Knowledge, self-efficacy, and resource utilization were commonly measured process outcomes.
 • Clinical outcomes like chronic disease control, medication adherence, and health behaviors were assessed in some studies.
 • Cost savings and healthcare utilization were less frequently examined.
Effectiveness
 • Most interventions showed some benefits but had limited generalizability due to small samples or single health systems.
 • Overall evidence was mixed and highlighted implementation barriers regarding sustainability, adoption, and cost.