Current Research Projects

There is always something new happening at the Person Centered Methods Lab. Keep reading to learn about some of our current projects!

IMPROVE CV Care Catalyst Grant

Person-centered care is fundamental to high-quality health systems because it improves experiences people have with care, better aligns health services delivery with individual needs, reduces inappropriate use of services influencing the cost of care, improves health outcomes, and fosters greater satisfaction of the professionals who provide care. This is achieved by integrating clinical data with both objectively collected patient reported outcomes (PROMs) and patient reported experiences (PREMs), which quantify the subjective aspects of a person’s health status and their experience with processes of care.

The purpose of this study is to develop and implement an electronic PROM/PREM measurement and reporting system (e-PROM) that optimizes information delivery to heart disease patients and their care providers to improve CVD management. We want to improve how physicians relate with their patients. This study aims to develop an electronic platform to collect and report contextualized results directly to patients and their clinicians. 

Machine Learning Methods for PROMs

Unsupervised learning approaches to improve patient-reported outcome measures.

Team: T. Sajobi (PI), L. Lix, V. Sebille, J. Liu, L. Kongsgaard Nielsen, N. Mayo, E. Bohm, C. Norris

Funding Agency: Canadian Institutes of Health Research

Amount: $367,200


Project Summary

Patient-reported outcome measures (PROMs) are designed to be used by patients to describe their health, including their quality of life, pain, fatigue, and functional abilities. PROMs can also be used by clinicians, health professionals, and healthcare decision makers to describe the outcomes of care from the patient’s point of view. In order to contribute to improving patient care, PROMs must be valid (i.e., measure what they are supposed to measure) and reliable (i.e., measure the same thing over time and for patients with different characteristics). Sometimes, patient responses on PROMs are not consistent with what was expected. These inconsistencies may occur because patients with different characteristics may not understand or interpret questions about their health in the same way (differential item functioning), or their interpretations may change over time (response shift). While these differential interpretations and response shifts in PROMs data could be a result of positive adaptations to health challenges, such as a chronic illness or a healthcare treatment, they are often difficult to detect and, if ignored, could lead to incorrect conclusions about the outcomes of care. Our research focuses on data-driven machine-learning methods to efficiently cluster (i.e., group) patients with similar patterns of differential item functioning or response shifts. We will develop and apply machine-learning item response methods and compare them to model- based item response methods using computer simulation. We will apply the proposed machine-based methods to existing data for patients with specific health conditions to predict healthcare use. The research will be shared with healthcare providers, PROMs developers, and researchers. The overall goal of our study is to improve the ability to accurately interpret patient-reported information when measuring the effectiveness and responsiveness of the healthcare system.


Project Investigators

Dr. Tolu Sajobi, Principal Investigator

Dr Lisa Lix (University of Manitoba, Canada)

Dr Veronique Sebille (Universite de Nantes, France)

Dr Lene Nielsen Konsgaard (University of Southern Denmark, Denmark)

Dr. Eric Bohm (University of Manitoba, Canada)

Dr. Juxin Liu (University of Saskatchewan, Canada)

Dr. Nancy Mayo (McGill University, Canada)

Dr Colleen Norris (University of Alberta, Edmonton, Canada)

Dr Rick Sawatzky (Trinity Western University, Canada)



Dr Ridwan Sanusi (Postdoctoral Fellow, University of Manitoba)

Muditha Gedara  (PhD student, University of Manitoba)

Olayinka Arimoro (MSc Student, University of Calgary)

For a look at the clinical trials our team is involved with: Click here