Complications From Postmastectomy Radiation Therapy in Patients Undergoing Immediate Breast Reconstruction: A Population-Based Study by Chris Doherty, MD, MPH, J. Andrew McClure, MSc, Nancy N. Baxter, MD, PhD, Muriel Brackstone, MD, PhD

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Quality of End-of-Life Cancer Care in Canada: A 12-Year Retrospective Analysis of Three Provinces’ Administrative Health Care Data Evaluating Changes over Time by Amanda Farah Khan, Hsien Seow, Rinku Sutradhar, Stuart Peacock, Kelvin Kar-Wing Chan, Fred Burge, Kim McGrail, Adam Raymakers, Beverley Lawson, Lisa Barbera

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Rates of primary and secondary treatments for patients on active surveillance for localized prostate cancer—A population‐based cohort study by Rano Matta, Amanda E. Hird, Erind Dvorani, Refik Saskin, Gregory J. Nason, Girish Kulkarni, Ronald T. Kodama, Sender Herschorn, Robert K. Nam

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Use of Large Data Sets in Evaluating Program Outcome in Pediatric Hearing Loss by Sarah Spruin, Janet Olds, Elizabeth Fitzpatrick, Laura Rosella, Stuart Nicholls, Marie Pigeon, JoAnne Whittingham, James MacDougall, David Schramm, Eric Benchimol

“…Children with PHL, identified from a database at the Children’s Hospital of Eastern Ontario, were linked to health administrative data housed at the Institute for Clinical Evaluative Sciences. Five residents of Ottawa acted as non-PHL controls for each PHL case. …”
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Using the RECORD guidelines to improve transparent reporting of studies based on routinely collected data by Katie Harron, Eric Benchimol, Sinead Langan

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Appropriateness of Outpatient Antibiotic Use in Seniors across Two Canadian Provinces by Ariana Saatchi, Jennifer N. Reid, Marcus Povitz, Salimah Z. Shariff, Michael Silverman, Andrew M. Morris, Romina C. Reyes, David M. Patrick, Fawziah Marra

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Characteristics of patients attached to near-retirement family physicians: a population-based serial cross-sectional study in Ontario, Canada by Bridget L Ryan, Richard H Glazier, Susan E Schultz, Maria Mathews, Shahriar Khan, Kamila Premji, Michael E Green, Steve Nastos, Eliot Frymire

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Ethnic disparities in COVID-19 outcomes: a multinational cohort study of 20 million individuals from England and Canada by Francesco Zaccardi, Pui San Tan, Baiju R. Shah, Karl Everett, Ash Kieran Clift, Martina Patone, Defne Saatci, Carol Coupland, Simon J. Griffin, Kamlesh Khunti, Hajira Dambha-Miller, Julia Hippisley-Cox

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Life expectancy and health-adjusted life expectancy are decreased in people living with inflammatory bowel disease: a population-based matched cohort study by Ellen Kuenzig, Doug Manuel, Jessy Donelle, Eric Benchimol

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Population Study of Sex-Based Outcomes After Surgical Aortic Valve Replacement by Fraser D. Rubens, MD, MSc, Anna E. Clarke, BSc, MSc, Douglas S. Lee, MD, PhD, George A. Wells, PhD, Louise Y. Sun, MD, SM

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Characteristics and Outcomes of ICU Patients Without COVID-19 Infection—Pandemic Versus Nonpandemic Times: A Population-Based Cohort Study by Cameron W. Leafloor, MD, Haris Imsirovic, MSc, Danial Qureshi, MSc, PhD(c), Christina Milani, MSc, Kwadjo Nyarko, Sarah E. Dickson, Laura Thompson, PhD, Peter Tanuseputro, MD, MHSc, Kwadwo Kyeremanteng, MD, MHA

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Primary health care engagement among marginalized people who use drugs in Ottawa, Canada by Jessy Donelle, Ahmed Bayoumi, Lisa Boucher, Alana Martin, Dave Pineau, Nicola Diliso, Brad Renaud, Rob Boyd, Pam Oickle, Zack Marshall, Sean LeBlanc, Mark Tyndall, Claire Kendall

“…Objectives and Approach We investigated which socio-structural factors were related to primary care engagement among PWUD using rich survey data from the Participatory Research in Ottawa: Understanding Drugs cohort study; these data were deterministically linked to several robust provincial-level health administrative databases held at the Institute for Clinical Evaluative Sciences. We defined primary care engagement over the 2 years prior to survey completion (March-December 2013) as: not engaged (<3 outpatient visits to the same family physician) versus engaged in care (3+ outpatient visits to the same family physician). …”
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Perspectives on Linkage Involving Indigenous data by Jennifer Walker, Bonnie Healy, Chyloe Healy, Tina Apsassin, William Wadsworth, Carmen Jones, Jeff Reading, Laurel Lemchuk-Favel, Raymond Lovett, Donna Cormack, Stephanie Rainie, Desi Rodriguez-Lonebear, Robyn Rowe

“…Canada Research Chair in Indigenous Health, Laurentian University and Indigenous Lead, Institute for Clinical Evaluative Sciences. Collaborators: • Alberta: Bonnie Healy, Tina Apsassin, Chyloe Healy and William Wadsworth (Alberta First Nations Information Governance Centre) • Ontario: Carmen R. …”
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Effect of the incremental protection of previous infection against Omicron infection among individuals with a hybrid of infection- and vaccine-induced immunity: a population-based... by Shishi Wu, Yanhong Li, Sharmistha Mishra, Korryn Bodner, Stefan Baral, Jeffrey C. Kwong, Xiaolin Wei

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Validation of the Use of Discharge Diagnostic Codes for the Verification of Secondary Atrial Fibrillation in Administrative Databases by Erika Nakajima, BSc, Bisan ShweikiAlrefaee, MD, Peter C. Austin, PhD, Dennis T. Ko, MD, MSc, Husam Abdel-Qadir, MD, PhD

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Melanin levels in relation to vitamin D among first-generation immigrants from different ethnic groups and origins: A comparative national Canadian cross-sectional study by Said Yousef, Said Yousef, Manny Papadimitropoulos, Manny Papadimitropoulos, MoezAlIslam Faris, Hayder Hasan, Alomgir Hossain, Alomgir Hossain, Ian Colman, Douglas Manuel, Douglas Manuel, Douglas Manuel, George A. Wells, George A. Wells

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First Nations Data Governance, Privacy, and the Importance of the OCAP® principles by Graham Mecredy, Roseanne Sutherland, Carmen Jones

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Cost and cost‐effectiveness of immunotherapy in childhood ALL: A systematic review by Yolanda Scoleri‐Longo, Petros Pechlivanoglou, Sumit Gupta

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The International Population Data Linkage Network – Banff and Beyond by William A Ghali, Michael J Schull

“…Over the last 18 months, our co-directorship teams from the Institute for Clinical Evaluative Sciences in Ontario and the O’Brien Institute for Public Health at the University of Calgary have built on the foundation established by prior directors to update/enhance the IPDLN website and membership database. …”
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Case Mix, Patterns of Care, and Inpatient Outcomes Among Ontario Kidney Transplant Centers: A Population-Based Study by Anne Tsampalieros, Greg A. Knoll, Stephanie Dixon, Shane English, Douglas Manuel, Carl Van Walraven, Monica Taljaard, Dean Fergusson

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