Canadian Medical Association Journal

Article	Citations
The impact of COVID-19 on pregnancy outcomes: a systematic review and meta-analysis	552
Shifts in office and virtual primary care during the early COVID-19 pandemic in Ontario, Canada	267
Evaluation of the relative virulence of novel SARS-CoV-2 variants: a retrospective cohort study in Ontario, Canada	207
Projected estimates of cancer in Canada in 2022	150
Alpha, Beta, Delta, Gamma: What’s important to know about SARS-CoV-2 variants of concern?	126
Remdesivir for the treatment of patients in hospital with COVID-19 in Canada: a randomized controlled trial	113
Medical experimentation and the roots of COVID-19 vaccine hesitancy among Indigenous Peoples in Canada	81
Symptoms associated with a positive result for a swab for SARS-CoV-2 infection among children in Alberta	67
Diagnosis and management of endometriosis	67
COVID-19 in patients undergoing long-term dialysis in Ontario	67
Implementing machine learning in medicine	67
Time to dismantle systemic anti-Black racism in medicine in Canada	66
Characteristics and outcomes of hospital admissions for COVID-19 and influenza in the Toronto area	65
Advancing gender equity in medicine	63
The efficacy and safety of sunscreen use for the prevention of skin cancer	58
Individual and social determinants of SARS-CoV-2 testing and positivity in Ontario, Canada: a population-wide study	58
Canadian best practice recommendations for the management of amyotrophic lateral sclerosis	53
The case for relaxing no-visitor policies in hospitals during the ongoing COVID-19 pandemic	53
Canada’s response to the initial 2 years of the COVID-19 pandemic: a comparison with peer countries	45
Diagnosis-wide analysis of COVID-19 complications: an exposure-crossover study	45
Characteristics of children admitted to hospital with acute SARS-CoV-2 infection in Canada in 2020	44
Infectivity of severe acute respiratory syndrome coronavirus 2 in children compared with adults	44
Short-term antibody response after 1 dose of BNT162b2 vaccine in patients receiving hemodialysis	43
Preterm birth and stillbirth rates during the COVID-19 pandemic: a population-based cohort study	42
Antiviral drug treatment for nonsevere COVID-19: a systematic review and network meta-analysis	42

Prone positioning for patients with hypoxic respiratory failure related to COVID-19	38
Reasons for cannabis use during pregnancy and lactation: a qualitative study	38
Population-based evaluation of the effectiveness of nirmatrelvir–ritonavir for reducing hospital admissions and mortality from COVID-19	37
Clinical outcomes and health care costs among people entering a safer opioid supply program in Ontario	35
Life expectancy and health-adjusted life expectancy in people with inflammatory bowel disease	34
Geographic concentration of SARS-CoV-2 cases by social determinants of health in metropolitan areas in Canada: a cross-sectional study	34
Diagnosis and management of postural orthostatic tachycardia syndrome	33
What’s important to know about the new COVID-19 variants?	33
Serial cross-sectional estimation of vaccine-and infection-induced SARS-CoV-2 seroprevalence in British Columbia, Canada	33
Impact of population mixing between vaccinated and unvaccinated subpopulations on infectious disease dynamics: implications for SARS-CoV-2 transmission	32
Increasing SARS-CoV-2 vaccination rates among Black people in Canada	32
Sex differences in mortality: results from a population-based study of 12 longitudinal cohorts	31
Trends in prevalence of chronic disease and multimorbidity in Ontario, Canada	31
Effectiveness of intrapartum fetal surveillance to improve maternal and neonatal outcomes: a systematic review and network meta-analysis	31
Problems in the deployment of machine-learned models in health care	30
Virtual care for patients with Alzheimer disease and related dementias during the COVID-19 era and beyond	29
Maternal and neonatal trauma following operative vaginal delivery	29
The challenges of managing diabetes while homeless: a qualitative study using photovoice methodology	28
Mortality among patients with frequent emergency department use for alcohol-related reasons in Ontario: a population-based cohort study	28
Postpartum mental illness during the COVID-19 pandemic: a population-based, repeated cross-sectional study	28
Post-acute health care burden after SARS-CoV-2 infection: a retrospective cohort study	27
Managing conflicts of interest in the development of health guidelines	27
Postoperative outcomes for Indigenous Peoples in Canada: a systematic review	27
Patient–physician language concordance and quality and safety outcomes among frail home care recipients admitted to hospital in Ontario, Canada	27
The use and impact of monoclonal antibody biologics during pregnancy	27
Association between long-term exposure to ambient air pollution and COVID-19 severity: a prospective cohort study	27
Making sense of monkeypox death rates	27
Key populations for early COVID-19 immunization: preliminary guidance for policy	26
Observed versus expected rates of myocarditis after SARS-CoV-2 vaccination: a population-based cohort study	26
Clinical practice guideline for management of osteoporosis and fracture prevention in Canada: 2023 update	26
Differences in mRNA-1273 (Moderna) and BNT162b2 (Pfizer-BioNTech) SARS-CoV-2 vaccine immunogenicity among patients undergoing dialysis	26
Diagnosis and management of acute respiratory distress syndrome	26
Virtual overdose monitoring services: a novel adjunctive harm reduction approach for addressing the overdose crisis	26
A population-based analysis of the impact of the COVID-19 pandemic on common abdominal and gynecological emergency department visits	26
Keeping the front door open: ensuring access to primary care for all in Canada	25
Integrating research into clinical practice: challenges and solutions for Canada	25
Total knee replacement after high tibial osteotomy: time-to-event analysis and predictors	25
Evaluation of machine learning solutions in medicine	24
Predictors of severe illness in children with multisystem inflammatory syndrome after SARS-CoV-2 infection: a multicentre cohort study	24
First Nations status and emergency department triage scores in Alberta: a retrospective cohort study	23
Potential resurgence of respiratory syncytial virus in Canada	23
A case of human monkeypox in Canada	23
The case for a Canadian standard for 2SLGBTQIA+ medical education	23
Systemic capillary leak syndrome after ChAdOx1 nCOV-19 (Oxford–AstraZeneca) vaccination	23
Bradycardia associated with remdesivir therapy for COVID-19 in a 59-year-old man	23
Genome sequencing as a diagnostic test	22
Risk factors for outbreaks of SARS-CoV-2 infection at retirement homes in Ontario, Canada: a population-level cohort study	22
Recent cannabis use and myocardial infarction in young adults: a cross-sectional study	22
How should we move for health? The case for the 24-hour movement paradigm	21
Suicidality among sexual minority and transgender adolescents: a nationally representative population-based study of youth in Canada	21

Inappropriate use of clinical practices in Canada: a systematic review	21
CMAJ’s new guidance on the reporting of race and ethnicity in research articles	20
Rapid antigen screening of asymptomatic people as a public health tool to combat COVID-19	20
Severity of COVID-19 among solid organ transplant recipients in Canada, 2020–2021: a prospective, multicentre cohort study	20
Association between antihypertensive medications and risk of skin cancer in people older than 65 years: a population-based study	20
A low-barrier, flexible safe supply program to prevent deaths from overdose	19
Implementing social interventions in primary care	19
XE, XD & XF: what to know about the Omicron hybrid variants	19
Burden of noninfluenza respiratory viral infections in adults admitted to hospital: analysis of a multiyear Canadian surveillance cohort from 2 centres	19
The inconvenience of motherhood during a medical career	18
Pregnancy, breastfeeding and the SARS-CoV-2 vaccine: an ethics-based framework for shared decision-making	18
Lung transplantation for acute COVID-19: the Toronto Lung Transplant Program experience	18
Excess mortality, COVID-19 and health care systems in Canada	18
Limb ischemia and pulmonary artery thrombosis after the ChAdOx1 nCoV-19 (Oxford–AstraZeneca) vaccine: a case of vaccine-induced immune thrombotic thrombocytopenia	18
Not neutral: reimagining antiracism as a professional competence	18
Statin initiation and risk of incident kidney disease in patients with diabetes	18
Transforming race-based health research in Canada	17
Nirmatrelvir-ritonavir for COVID-19	17
Outcomes in patients with and without disability admitted to hospital with COVID-19: a retrospective cohort study	17
The war in Ukraine and refugee health care: considerations for health care providers in Canada	17
Physician choices in pulmonary embolism testing	17
Managing postoperative pain in adult outpatients: a systematic review and meta-analysis comparing codeine with NSAIDs	17
National survey highlights worsening primary care access	17
Achieving and sustaining herd immunity to SARS-CoV-2	16
Who is Black? The urgency of accurately defining the Black population when conducting health research in Canada	15
Predicting death in home care users: derivation and validation of the Risk Evaluation for Support: Predictions for Elder-Life in the Community Tool (RESPECT)	15
Cost-effectiveness of pharmacogenomic-guided treatment for major depression	15
Fat acceptance as social justice	15
Guillain–Barré syndrome after SARS-CoV-2 vaccination in a patient with previous vaccine-associated Guillain–Barré syndrome	15
Emergency departments are in crisis now and for the foreseeable future	15
The past, present and future of race and colonialism in medicine	15
The evolution of SARS-CoV-2 seroprevalence in Canada: a time-series study, 2020–2023	15
Impact of the COVID-19 pandemic on cancer diagnoses, stage and survival in Alberta	15
What to know about Omicron XBB.1.5	15
Caring for people who inject drugs when they are admitted to hospital	15
Long-distance travel for birthing among Indigenous and non-Indigenous pregnant people in Canada	15
Recommendation on instrument-based screening for depression during pregnancy and the postpartum period	15
Uncovering SARS-COV-2 vaccine uptake and COVID-19 impacts among First Nations, Inuit and Métis Peoples living in Toronto and London, Ontario	14
Impact of cancer surgery slowdowns on patient survival during the COVID-19 pandemic: a microsimulation modelling study	14
Incidence and mortality rates of keratinocyte carcinoma from 1998–2017: a population-based study of sex differences in Ontario, Canada	14
Canadian Cardiovascular Harmonized National Guideline Endeavour (C-CHANGE) guideline for the prevention and management of cardiovascular disease in primary care: 2022 update	14
The risk of death or unplanned readmission after discharge from a COVID-19 hospitalization in Alberta and Ontario	14
Managing drug shortages during a pandemic: tocilizumab and COVID-19	14
Catheter-directed thrombolysis compared with systemic thrombolysis and anticoagulation in patients with intermediate- or high-risk pulmonary embolism: systematic review and network meta-analysis	14
Investigation of a severe SARS-CoV-2 outbreak in a long-term care home early in the pandemic	14
Mandatory vaccination for health care workers: an analysis of law and policy	14
Implementing digital passports for SARS-CoV-2 immunization in Canada	14
Experiences of First Nations adolescents living with type 2 diabetes: a focus group study	14
The mobility gap: estimating mobility thresholds required to control SARS-CoV-2 in Canada	14
Changes in ischemic stroke presentations, management and outcomes during the first year of the COVID-19 pandemic in Alberta: a population study	13
Prescribing cascades in older adults	13
Management of patients after coronary artery bypass grafting surgery: a guide for primary care practitioners	13
COVID-19 and the prevalence of drug shortages in Canada: a cross-sectional time-series analysis from April 2017 to April 2022	13
Birth outcomes following cesarean delivery on maternal request: a population-based cohort study	13
The association of sensitivity and specificity with disease prevalence: analysis of 6909 studies of diagnostic test accuracy	13
Bodychecking experience and rates of injury among ice hockey players aged 15–17 years	13
Housing conditions and respiratory morbidity in Indigenous children in remote communities in Northwestern Ontario, Canada	12
Rates of rebleeding, thrombosis and mortality associated with resumption of anticoagulant therapy after anticoagulant-related bleeding	12
Optimizing care for critically ill older adults	12
Recommendation on screening for chlamydia and gonorrhea in primary care for individuals not known to be at high risk	12
Advances in the management of pancreatic ductal adenocarcinoma	12
Regional collaborative home-based palliative care and health care outcomes among adults with heart failure	12
Illuminating and mitigating the evolving impacts of COVID-19 on ethnocultural communities: a participatory action mixed-methods study	12
Gender-based differences in physician payments within the fee-for-service system in Ontario: a retrospective, cross-sectional study	12
Recommendations for equitable COVID-19 pandemic recovery in Canada	12
Iron deficiency and iron deficiency anemia in pregnancy	12
Diversity among health care leaders in Canada: a cross-sectional study of perceived gender and race	11
Critical race theory in medicine	11
The trauma-informed genital and gynecologic examination	11
Aligning continuing professional development with quality improvement	11
Diagnosis and management of depression in adolescents	11
Factors associated with consent for organ donation: a retrospective population-based study	11
Overworked health workers are “past the point of exhaustion”	11
Drug-induced liver injury	10
Prescribed opioid analgesics in early pregnancy and the risk of congenital anomalies: a population-based cohort study	10
Shoulder injury related to SARS-CoV-2 vaccine administration	10
Safer opioid supply via a biometric dispensing machine: a qualitative study of barriers, facilitators and associated outcomes	10
COVID-19 and patient engagement in health research: What have we learned?	10
Unpacking “long COVID”	10
Cost–utility analysis of apixaban compared with usual care for primary thromboprophylaxis in ambulatory patients with cancer	10

Establishing irremediable psychiatric suffering in the context of medical assistance in dying in the Netherlands: a qualitative study	10
Pressurized metered-dose inhalers and their impact on climate change	10
Innovations in genomics for undiagnosed diseases: vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic (VEXAS) syndrome	10
Effects of air pollution and habitual exercise on the risk of death: a longitudinal cohort study	10
The clinical course of acute, subacute and persistent low back pain: a systematic review and meta-analysis	10
Maternal cardiovascular disease after twin pregnancies complicated by hypertensive disorders of pregnancy: a population-based cohort study	10
Canadian federal–provincial/territorial funding of universal health care: fraught history, uncertain future	10
Booster vaccination with inactivated whole-virus or mRNA vaccines and COVID-19–related deaths among people with multimorbidity: a cohort study	10
Improving the regulation of medical cannabis in Canada to better serve pediatric patients	10
SARS-CoV-2 seroprevalence in health care workers from 10 hospitals in Quebec, Canada: a cross-sectional study	10
Changes over time in patient visits and continuity of care among graduating cohorts of family physicians in 4 Canadian provinces	10
Pregnancy in transgender men	9
Risks of leukemia, intracranial tumours and lymphomas in childhood and early adulthood after pediatric radiation exposure from computed tomography	9
Changes over time in means of suicide in Canada: an analysis of mortality data from 1981 to 2018	9
Canadian guideline for the clinical management of high-risk drinking and alcohol use disorder	9
“This shouldn’t be our job to help you do this”: exploring the responses of medical schools across Canada to address anti-Black racism in 2020	9
Characteristics of patients with mental illness and persistent high-cost status: a population-based analysis	9
Performance of a universal prenatal screening program incorporating cell-free fetal DNA analysis in Ontario, Canada	9
Primary care is facing a capacity crisis — can pandemic lessons help chart a path forward?	9
Survival and health care costs after inpatient elective surgery: comparison of patients with and without chronic obstructive pulmonary disease	9
Methemoglobinemia caused by sodium nitrite overdose	9
Endometrial cancer	9
Venlafaxine overdose treated with extracorporeal life support	9
A virtual care innovation for home mechanical ventilation	8
Intracranial hemorrhage after head injury among older patients on anticoagulation seen in the emergency department: a population-based cohort study	8
Effect of influenza vaccination in patients with asthma	8
Trends in hospital admissions for chronic obstructive pulmonary disease over 16 years in Canada	8
Derivation and validation of a clinical model to predict death or cardiac hospitalizations while on the cardiac surgery waitlist	8
Antiracism as a foundational competency: reimagining CanMEDS through an antiracist lens	8
Impact of acetaminophen product labelling changes in Canada on hospital admissions for accidental acetaminophen overdose: a population-based study	8
Transitioning to outpatient arthroplasty during COVID-19: time to pivot	8
Rupioid psoriasis on the hands	8
Possible association between rhabdomyolysis and mRNA SARS-CoV-2 vaccination in a patient with RYR1 gene mutation	8
Outcomes associated with nonmedical cannabis legalization policy in Canada: taking stock at the 5-year mark	8
Maximizing the impact of limited vaccine supply under different early epidemic conditions: a 2-city modelling analysis of monkeypox virus transmission among men who have sex with men	8
Informing COVID-19 vaccination priorities based on the prevalence of risk factors among adults in Canada	8
Transient ischemic attack and minor stroke: diagnosis, risk stratification and management	8
Recognizing, managing and reporting vaccine-induced immune thrombotic thrombocytopenia	8
Acute care related to cannabis use during pregnancy after the legalization of nonmedical cannabis in Ontario	7
Emergency department visits and hospital admissions for suicidal ideation, self-poisoning and self-harm among adolescents in Canada during the COVID-19 pandemic	7
The effect of changing screening practices and demographics on the incidence of gestational diabetes in British Columbia, 2005–2019	7
Physician workforce planning in Canada: the importance of accounting for population aging and changing physician hours of work	7
Prevention and management of hyperkalemia in patients treated with renin–angiotensin–aldosterone system inhibitors	7
Rates of health services use among residents of retirement homes in Ontario: a population-based cohort study	7
Impaired driving and legalization of recreational cannabis	7
Diagnosis and acute management of migraine	7
Ensuring equitable access to cancer care for Black patients in Canada	7
Diagnosis and management of toxicity associated with the recreational use of nitrous oxide	7
Intrahepatic cholestasis of pregnancy	7
African Nova Scotian nurses’ perceptions and experiences of leadership: a qualitative study informed by Black feminist theory	7
Perinatal outcomes of midwife-led care, stratified by medical risk: a retrospective cohort study from British Columbia (2008–2018)	7
Derivation of the Falls Decision Rule to exclude intracranial bleeding without head CT in older adults who have fallen	7
Derivation and validation of predictive indices for 30-day mortality after coronary and valvular surgery in Ontario, Canada	7
Endocarditis due to Bartonella quintana, the etiological agent of trench fever	7
Why are emergency departments closing?	7
Refocusing on hypertension control in Canada	7
Why is WHO pushing back on a Health Canada–approved Medicago SARS-CoV-2 vaccine?	7
Factors that contribute to the mental health of Black youth	7
Association between virtual primary care and emergency department use during the first year of the COVID-19 pandemic in Ontario, Canada	7
Diagnosis and treatment of adenomyosis	6
What problems in health care quality should we target as the world burns around us?	6
Rethinking the “discovery” of insulin	6
Elimination of race in estimates of kidney function to provide unbiased clinical management in Canada	6
Alcohol consumption and risk of cardiovascular outcomes and bleeding in patients with established atrial fibrillation	6
Considerations for assessing frail older adults requesting medical assistance in dying	6
William Osler: saint in a “White man’s dominion”	6
Pharmacologic prevention of migraine	6
Escalating violence against health workers prompts calls for action	6
Recommendations on screening for primary prevention of fragility fractures	6
Preventive care recommendations to promote health equity	6
Policy in focus: Is psilocybin the next cannabis?	6
Changes in emergency department use in British Columbia, Canada, during the first 3 years of the COVID-19 pandemic	6
Deemed consent for deceased organ donation	6
The experiences of family members of deceased organ donors and suggestions to improve the donation process: a qualitative study	6
Prosthetic joint infection after total hip arthroplasty caused by Lactobacillus paracasei	6
Troubling rise in suicides linked with common food preservative	6
Mass poisoning in Markham highlights wolfsbane risk	6
Shifting from cytology to HPV testing for cervical cancer screening in Canada	6
Possible association between myocardial infarction with nonobstructed coronary arteries and SARS-CoV-2 infection	6
Characterizing the cascade of care for hepatitis C virus infection among Status First Nations peoples in Ontario: a retrospective cohort study	6
Disease-modifying drugs for Alzheimer disease: implications for people in Canada	6
Measures to support a safer drug supply	6
Preoperative levels of natriuretic peptides and the incidence of postoperative atrial fibrillation after noncardiac surgery: a prospective cohort study	6
Hospitals grappling with nurse exodus	6
Metformin use and associated risk of total joint replacement in patients with type 2 diabetes: a population-based matched cohort study	6
Physician, heal thyself	6
Hourly air pollution exposure and the onset of symptomatic arrhythmia: an individual-level case–crossover study in 322 Chinese cities	6
Hyoscine butylbromide versus acetaminophen for nonspecific colicky abdominal pain in children: a randomized controlled trial	6
Revisiting the concept of urgency in surgical prioritization and addressing backlogs in elective surgery provision	5
Ukraine crisis highlights inequities in refugee care	5
Ketamine for the treatment of acute pain	5
Metronidazole-induced neurotoxicity	5
What drives requests for MAiD?	5
A false-positive troponin assay leading to the misdiagnosis of myopericarditis	5
Multisystem inflammatory syndrome in an adult after SARS-CoV-2 infection	5