CMAJ Open: 9 (4)

October 2021; Volume 9,Issue 4

Correction

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Correction: Influence of opioid prescribing standards on health outcomes among patients with long-term opioid use: a longitudinal cohort study
October 05, 2021 9 (4) E926; DOI: https://doi.org/10.9778/cmajo.20210242
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Correction: Opioid losses in terms of dosage and value, January 2012 to September 2017: a retrospective analysis of Health Canada data
October 05, 2021 9 (4) E927; DOI: https://doi.org/10.9778/cmajo.20210250
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Correction: Buprenorphine–naloxone practice and attitudes in 22 Canadian emergency physician groups: a cross-sectional survey
October 05, 2021 9 (4) E928; DOI: https://doi.org/10.9778/cmajo.20210253

Research

Open Access
SARS-CoV-2 antibodies in Ontario health care workers during and after the first wave of the pandemic: a cohort study
Michelle Science, Shelly Bolotin, Michael Silverman, Jeya Nadarajah, Bryan Maguire, Rulan S. Parekh, Allison McGeer, Kevin L. Schwartz, Laura Alexander, Upton Allen, Archchun Ariyarajah, Lucas Castellani, Ronald D. Cohn, Mark Downing, Kevin Katz, Kescha Kazmi, Jerome A. Leis, Derek Liu, Jeffrey M. Pernica, Jane E. Schneiderman, Maya Sumaida and Aaron Campigotto

October 12, 2021 9 (4) E929-E939; DOI: https://doi.org/10.9778/cmajo.20210044
Open Access
Risks associated with colonoscopy in a population-based colon screening program: an observational cohort study
Marcel Tomaszewski, David Sanders, Robert Enns, Laura Gentile, Scott Cowie, Carla Nash, Denis Petrunia, Paul Mullins, Jeremy Hamm, Nazanin Azari-Razm, Dmitriy Bykov and Jennifer Telford

October 12, 2021 9 (4) E940-E947; DOI: https://doi.org/10.9778/cmajo.20200192
Open Access
Health care costs of hospitalization of young children for respiratory syncytial virus infections: a population-based matched cohort study
Nisha Thampi, Braden D. Knight, Kednapa Thavorn, Richard J. Webster, Krista Lanctot, Steven Hawken and J. Dayre McNally

October 19, 2021 9 (4) E948-E956; DOI: https://doi.org/10.9778/cmajo.20200219
Open Access
Changes in the reach of a smoking cessation program in Ontario, Canada, during the COVID-19 pandemic: a cross-sectional study
Nadia Minian, Scott Veldhuizen, Elise Tanzini, Stephanie Duench, Wayne K. deRuiter, Megan Barker, Laurie Zawertailo, Osnat C. Melamed and Peter Selby

October 19, 2021 9 (4) E957-E965; DOI: https://doi.org/10.9778/cmajo.20210053

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