Supplementing Systematic Review Findings with Healthcare System Data: Final Results from the US AHRQ Evidence-based Practice Center Program Pilot Projects

Article type
Authors
Holmer H1, Iyer S2, Fiordalisi C1, Kuhn E1, Forte M3, Murad M4, Wang Z4, Tsou A5, Michel J5, Umscheid C2
1Scientific Resource Center for the AHRQ EPC Program, Portland, OR, USA
2Center for Evidence and Practice Improvement, Agency for Healthcare Research and Quality, Rockville, MD, USA
3University of Minnesota Evidence-based Practice Center, Minneapolis, MN, USA
4Evidence-based Practice Center, Mayo Clinic, Rochester, MN, USA
5ECRI Institute Evidence-Based Practice Center, Plymouth Meeting, PA, USA
Abstract
Background: The US Agency for Healthcare Research and Quality (AHRQ), through the Evidence-based Practice Center (EPC) Program, aims to provide health system decision makers with the highest-quality evidence to inform clinical decisions. However, limitations in the literature may lead to inconclusive findings in EPC systematic reviews (SRs).

Objectives: The EPC Program conducted pilot projects to understand the feasibility, benefits, and challenges of utilizing health system data to augment SR findings to support confidence in healthcare decision-making based on real-world experiences.

Methods: Three contractors (each an EPC located at a different health system) selected a recently completed systematic review conducted by their center and identified an evidence gap that electronic health record (EHR) data might address. All pilot project topics addressed clinical questions as opposed to care delivery, care organization, or care disparities topics that are common in AHRQ EPC reports. Topic areas addressed by each EPC included infantile epilepsy, migraine, and hip fracture. EPCs also tracked additional resources needed to conduct supplemental analyses. The workgroup met monthly to discuss challenges and lessons learned.

Results: Two supplemental data analyses filled evidence gaps identified in the systematic reviews (raised certainty of evidence, improved applicability) and the third filled a health system knowledge gap. Project challenges fell under three themes: regulatory and logistical issues, data collection and analysis, and interpretation and presentation of findings. Limited ability to capture key clinical variables given inconsistent or missing data within the EHR was a major limitation. The workgroup found that conducting supplemental data analysis alongside an SR was feasible but requires specific expertise and would add considerable time and resources to the systematic review process (Table). The total hours varied by EPC due to the scope of each topic and whether established institutional processes existed to readily access EHR data, among other reasons.

Conclusion: Supplementing existing systematic reviews with analyses of EHR data is resource intensive and requires specialized skillsets throughout the process. While using EHR data for research has immense potential to generate real-world evidence and fill knowledge gaps, these data may not yet be ready for routine use alongside systematic reviews.