1. Development and validation of a pulmonary function test data extraction tool for the US department of veterans affairs electronic health record
- Author
-
Alexander S. Rabin, Julien B. Weinstein, Sarah M. Seelye, Taylor N. Whittington, Cainnear K. Hogan, and Hallie C. Prescott
- Subjects
Pulmonary function test ,Electronic health record ,Veterans ,Forced expiratory volume ,Forced vital capacity ,Obstruction ,Medicine ,Biology (General) ,QH301-705.5 ,Science (General) ,Q1-390 - Abstract
Abstract Objective Pulmonary function test (PFT) results are recorded variably across hospitals in the Department of Veterans Affairs (VA) electronic health record (EHR), using both unstructured and semi-structured notes. We developed and validated a hospital-specific code to extract pre-bronchodilator measures of obstruction (ratio of forced expiratory volume in one second [FEV1] to forced vital capacity [FVC]) and severity of obstruction (percent predicted of FEV1). Results Among 36 VA facilities with the most PFTs completed between 2018 and 2022 from a parent cohort of veterans receiving long-acting controller inhalers, 12 had a consistent syntactical convention or template for reporting PFT data in the EHR. Of the 42,718 PFTs identified from these 12 facilities, the hospital-specific text processing pipeline yielded 24,860 values for the FEV1:FVC ratio and 23,729 values for FEV1. A ratio of FEV1:FVC less than 0.7 was identified in 17,615 of 24,922 studies (70.7%); 8864 of 24,922 (35.6%) had a severe or very severe reduction in FEV1 (
- Published
- 2024
- Full Text
- View/download PDF