Developing an Inpatient Electronic Medical Record Phenotype for Hospital-Acquired Pressure Injuries: Case Study Using Natural Language Processing Models

Elvira Nurmambetova   ^{1 *} , BHSc ;   Jie Pan   ^{1, 2 *} , PhD ;   Zilong Zhang   ^{1 *} , MSc ;   Guosong Wu   ^{1, 2} , PhD ;   Seungwon Lee   ^{1, 2, 3} , MPH, PhD ;   Danielle A Southern   ^{1, 2} , MSc ;   Elliot A Martin   ^{1, 3} , PhD ;   Chester Ho   ⁴ , MD ;   Yuan Xu   ^{1, 2, 5, 6} , MD, PhD ;   Cathy A Eastwood   ^{1, 2} , RN, PhD

¹ Centre for Health Informatics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada

² Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada

³ Alberta Health Services, Edmonton, AB, Canada

⁴ Department of Medicine, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, Canada

⁵ Department of Oncology, University of Calgary, Tom Baker Cancer Centre, Calgary, AB, Canada

⁶ Department of Surgery, Foothills Medical Centre, University of Calgary, Calgary, AB, Canada

*these authors contributed equally