Journal Articles
 

2025

Terpou BA, Lapointe-Shaw L, Wang R, et al. Designed for simplicity, used for complexity: The systemic pressures shaping walk-in clinic practices and outcomes. PLOS ONE. 2025;20(6):e0325793. doi:10.1371/journal.pone.0325793
 

Salahub C, Austin PC, Bai L, et al. Days at Home for Older Adults Receiving a Remote Monitoring Intervention Compared with Usual Home Care Recipients. Journal of the American Medical Directors Association. 2025;26(7):105611. doi:10.1016/j.jamda.2025.105611

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Rahman B, Kirkwood D, Babe G, et al. Association between primary care physicians’ practice models and referral rates to specialists: A sex-based cross-sectional study. PLOS ONE. 2025;20(4):e0322175. doi:10.1371/journal.pone.0322175

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Lavergne MR, Easley J, McDonald T, et al. Examining experiences and system impacts of publicly funded episodic virtual care: protocol for a cross-provincial mixed methods study. BMJ Open. 2025;15(3):e099098. doi:10.1136/bmjopen-2025-099098
 

2024

Jones A, Lapointe-Shaw L, Brown K, et al. Short-term mortality and palliative care use after delayed hospital discharge: a population-based retrospective cohort study. BMJ Supportive & Palliative Care. Published online January 9, 2024. doi:10.1136/spcare-2023-004647

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Reppas-Rindlisbacher C, Boblitz A, Podolsky S, et al. Language Preference, Surgical Wait Time, and Outcomes Among Older Adults With Hip Fracture. JAMA Netw Open. 2024;7(11):e2448010. doi:10.1001/jamanetworkopen.2024.48010
 

Terpou BA, Lapointe-Shaw L, Wang R, et al. A shifting terrain: Understanding the perspectives of walk-in physicians on their roles amid worsening primary care access in Ontario, Canada. PLOS ONE. 2024;19(5):e0303107. doi:10.1371/journal.pone.0303107

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Salahub C, Austin PC, Bai L, et al. Health Care Utilization After a Visit to a Within-Group Family Physician vs a Walk-In Clinic Physician. The Annals of Family Medicine. 2024;22(6):483-491. doi:10.1370/afm.3181
 

Lapointe-Shaw L, Salahub C, Austin PC, et al. Characteristics of walk-in clinic physicians and patients in Ontario: Cross-sectional study. Canadian Family Physician. 2024;70(10):e156-e168. doi:10.46747/cfp.7010e156

 

Rahman B, Babe G, Griffith LE, Price D, Lapointe-Shaw L, Costa AP. Patients report high information coordination between rostered primary care physicians and specialists: A cross-sectional study. PLOS ONE. 2024;19(8):e0307611. doi:10.1371/journal.pone.0307611

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Bartsch E, Shin S, Sheehan K, et al. Advanced imaging use and delays among inpatients with psychiatric comorbidity. Brain and Behavior. 2024;14(2):e3425. doi:10.1002/brb3.3425
 

2023
Lapointe-Shaw L, Salahub C, Austin PC, et al. Virtual visits with own family physician vs outside family physician and emergency department use. JAMA Network Open. 2023;6(12):e2349452. doi:10.1001/jamanetworkopen.2023.49452
 

Lapointe-Shaw L, Salahub C, Bird C, et al. Characteristics and Health Care Use of Patients Attending Virtual Walk-in Clinics in Ontario, Canada: Cross-sectional Analysis. Journal of Medical Internet Research. 2023;25(1):e40267. doi:10.2196/40267

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Lapointe-Shaw L, Kiran T, Salahub C, et al. Walk-in clinic patient characteristics and utilization patterns in Ontario, Canada: a cross-sectional study. Canadian Medical Association Open Access Journal. 2023;11(2):E345-E356. doi:10.9778/cmajo.20220095

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Lofters A, Salahub C, Austin PC, et al. Up-to-date on cancer screening among Ontario patients seen by walk-in clinic physicians: A retrospective cohort study. Preventive Medicine. 2023;172:107537. doi:10.1016/j.ypmed.2023.107537

 

Bartsch E, Shin S, Roberts S, et al. Imaging delays among medical inpatients in Toronto, Ontario: A cohort study. PLOS ONE. 2023;18(2):e0281327. doi:10.1371/journal.pone.0281327

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Bogler O, Kirkwood D, Austin PC, et al. Recent functional decline and outpatient follow-up after hospital discharge: a cohort study. BMC Geriatr. 2023;23(1):550. doi:10.1186/s12877-023-04192-7

Rahman B, Costa AP, Gayowsky A, et al. The association between patients’ timely access to their usual primary care physician and use of walk-in clinics in Ontario, Canada: a cross-sectional study. Canadian Medical Association Open Access Journal. 2023;11(5):E847-E858. doi:10.9778/cmajo.20220231
 

2022

Habbous, S.; Tai, X.; Beca, JM; et al. (2022). Comparison of use of neoadjuvant systemic treatment for breast cancer and short-term outcomes before vs during the COVID-19 era in Ontario, Canada. JAMA Network Open. 5(8): e2225118.

Zannella, VE; Jung, HY; Fralick, M; et al. (2022). Bedspacing and clinical outcomes in general internal medicine: A retrospective, multicenter cohort study. Journal of Hospital Medicine. 17(1): 3-10.

Lapointe-Shaw, L; Jones, A; Ivers, N; et al. (2022). Homebound status among older adult home care recipients in Ontario, Canada. Journal of the American Geriatrics Society. 70(2): 568-578.

Eskander, A; Li, Q; Yu, J; Hallet, J; Coburn, N et al. (2022). Assessing the Impact of the COVID-19 Pandemic on Emergency Department Use for Patients Undergoing Cancer-Directed Surgeries. Current Oncology. 29(3): 1877-1889.

Cheung, DC; Bremner, KE; Tsui, TCO; Croxford, R; Lapointe-Shaw, L et al. (2022). "Bring the Hoses to Where the Fire Is!": Differential Impact of Marginalization and Socioeconomic Status on COVID-19 Case Counts and Healthcare Costs. Value in Health. 25(8): 1307-1316.

Eskander, A; Li, Q; Yu, J; et al. (2022). Incident cancer detection during the COVID-19 pandemic. Journal of the National Comprehensive Cancer Network. 20(3): 276-284.

Yasseen, AS; Kwong, JC; Feld, JJ; Kustra, R; MacDonald, L et al. (2022). The viral hepatitis B care cascade: A population-based comparison of immigrant groups. Hepatology. 75(3): 673-689.

Lapointe-Shaw L.; Kiran T.; Costa A.P., et al. (2022). Physician home visits in Ontario: a cross-sectional analysis of patient characteristics and post visit use of health care services. CMAJ Open. 10(3): E732-E745.

Aryal K.; Mowbray F.; Gruneir A. et al. (2022). Nursing home resident admission characteristics and potentially preventable emergency department transfers. Journal of the American Medical Directors Association. 23(8): 1291-1296.

Maharaj, A; Parker, J; Hopkins, J; et al. (2022). Comparison of longitudinal trends in self-reported symptoms and COVID-19 case activity in Ontario, Canada. PLoS One. 17(1): e0262447.

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2021
Lapointe-Shaw, L; Feld, JJ. (2021). Peri-complication diagnosis of HCV among immigrants. Liver International. 41(2): 421.

Sergeant, A; Saha, S; Shin, S; Weinerman, A; Kwan, J; Lapointe-Shaw, L; Tang, T; Hawker, G; Rochon, PA; Verma, AA; Razak, F. (2021). Variations in processes of care and outcomes for hospitalized general medicine patients treated by female vs male physicians. JAMA Health Forum. 2(7): e211615.

Bobrowski, D; Kumar, R; Wu, P; Lapointe-Shaw, L. (2021). Prolonged ketosis and glycosuria secondary to SGLT2 inhibitor therapy. Clinical Case Reports. 9(11): e05057.

*Maharaj, AS; Parker, J; Hopkins, J; Gournis, E; Bogoch, I; Rader, B; Astley, C; Ivers, N; Hawkins, J; VanStone, N; Tuite, A; Fisman, D; Brownstein, J; Lapointe-Shaw, L. (2021). The effect of seasonal respiratory virus transmission on syndromic surveillance for COVID-19 in Ontario, Canada. The Lancet Infectious Diseases. 21(5): 593-594.

Roberts, SB; Hansen, BE; Shin, S; Abrahamyan, L; Lapointe-Shaw, L; Janssen, HLA; Razak, F; Verma, AA; Hirschfield, GM. (2021). Internal medicine hospitalisations and liver disease: A comparative disease burden analysis of a multicentre cohort. Alimentary Pharmacology & Therapeutics. 54(5): 689-698.

Lapointe-Shaw, L; Chung, H; Sander, B; Kwong, JC; Holder, L; Cerocchi, O; Austin, PC; Feld, JJ. (2021). Peri-complication diagnosis of Hepatitis C infection: Risk factors and trends over time. Liver International. 41(1): 33-47.

Fernando, E; Rawal, S; Shin, S; Bajwa, K; Kwan, J; Lapointe-Shaw, L; Tang, T; Weinerman, A; Razak, F; Verma, AA. (2021). Reliability of patient-report, physician-report, and medical record review to identify hospital-acquired complications: A prospective cohort study. American Journal of Medical Quality. 36(5): 337-344.

Choi J; Booth G; Jung HY; et al. (2021). Association of diabetes with frequency and cost of hospital admissions: a retrospective cohort study. CMAJ Open. 9(2): E406-E412.

Verma, AA; Hora, T; Jung, HY; Fralick, M; Malecki, SL; Lapointe-Shaw, L et al. (2021). Caractéristiques et issues des hospitalisations pour les cas de COVID-19 et d’influenza dans la région de Toronto. CMAJ. 193(23): E859-E869.

Yasseen AS; Kwong JC; Feld JJ; et al. (2021). Viral hepatitis C cascade of care: A population-level comparison of immigrant and long-term residents. Liver International. 41(8): 1775-1788.

Pincus, D; Widdifield, J; Palmer, KS; Paterson, JM; Li, A; Huang, A; Wasserstein, D; Lapointe-Shaw, L et al. (2021). Effects of hospital funding reform on wait times for hip fracture surgery: A population-based interrupted time-series analysis. BMC Health Services Research. 21(1): 576.

Verma, AA; Hora, T; Jung, HY; Fralick, M; Malecki, SL; Lapointe-Shaw, L et al. (2021). Characteristics and outcomes of hospital admissions for COVID-19 and influenza in the Toronto area. CMAJ. 193(12): E410-E418.

Verma, AA; Guo, Y; Jung, HY; Laupacis, A; Mamdani, M; Detsky, AS; Weinerman, A; Tang, T; Rawal, S; Lapointe-Shaw, L; Kwan, JL; Razak, F. (2021). Physician-level variation in clinical outcomes and resource use in inpatient general internal medicine: An observational study. BMJ Quality & Safety. 30(2): 123-132.

Berthelot, S; Breton, M; Guertin, JR et al. (2021). A value-based comparison of the management of ambulatory respiratory diseases in walk-in clinics, primary care practices, and emergency departments: Protocol for a multicenter prospective cohort study. JMIR Research Protocols. 10(2): e25619.

Verma, AA; Pasricha, SV; Jung, HY et al. (2021). Assessing the quality of clinical and administrative data extracted from hospitals: The General Medicine Inpatient Initiative (GEMINI) experience. Journal of the American Medical Informatics Association. 28(3): 578-587.

Verma, AA; Pai, M; Saha, S et al. (2021). Managing drug shortages during a pandemic: Tocilizumab and COVID-19. CMAJ. 193(21): E771-E776.

Kirubarajan, A; Shin, S; Fralick, M; Kwan, J; Lapointe-Shaw, L et al. (2021). Morning discharges and patient length of stay in inpatient general internal medicine. Journal of Hospital Medicine. 16(6): 333-338.

Lapointe-Shaw, L; Chung, H; Holder, L et al. (2021). Diagnosis of chronic Hepatitis B peri-complication: Risk factors and trends over time. Hepatology. 73(6): 2141-2154.

2020

Lapointe-Shaw, L; Bell, CM; Austin, PC et al. (2020). Community pharmacy medication review, death and re-admission after hospital discharge: A propensity score-matched cohort study. BMJ Quality & Safety. 29(1): 41-51.

Lapointe-Shaw, L; Rader, B; Astley, CM et al. (2020). Web and phone-based COVID-19 syndromic surveillance in Canada: A cross-sectional study. PLoS One. 15(10): e0239886.

Stall, N; Wu, W; Lapointe-Shaw, L et al. (2020). Sex – and age – specific differences in COVID-19 testing, cases and outcomes: A population-wide study in Ontario, Canada . Journal of the American Geriatrics Society. 68(10): 2188-2191.

Fisman, D; Bogoch, I; Lapointe-Shaw, L; McCready, J; Tuite, A. (2020). Risk factors associated with mortality among residents with Coronavirus Disease 2019 (COVID-19) in long-term care facilities in Ontario, Canada. JAMA Network Open. 3(7): e2015957.

Jones, A; Bronskill, SE; Seow, H; Feeny, D; Lapointe-Shaw, L; Mowbray, F; Costa, AP. (2020). Physician home visit patterns and hospital use among older adults with functional impairments. Journal of the American Geriatrics Society. 68(9): 2074-2081.

Verma, AA; Kumachev, A; Shah, S et al. (2020). Appropriateness of peripherally inserted central catheter use among general medical inpatients: An observational study using routinely collected data. BMJ Quality & Safety. 29(11): 905-911.

Li, A; Palmer, K; Taljaard, T et al. (2020). Effects of quality-based procedure hospital funding reform in Ontario, Canada: An interrupted time series study. PLoS One. 15(8): e0236480.

Razak, F; Shin, S; Pogacar, F et al. (2020). Modelling resource requirements and physician staffing for a virtual urgent medical care strategy to reduce transfer of long-term care home residents to acute care hospitals: A cross-sectional study. CMAJ Open. 8(3): E514-E521.