Journal Articles
 

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

 

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. 

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.

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.

Fralick, M; Goldberg, N; Rohailla, S et al. (2019). Value of routine echocardiography in the management of stroke. CMAJ. 191(31): E853-E859.

Lapointe-Shaw, L; Bell, CM. (2019). Who elects the weekend?. PLoS Medicine. 16(1): e1002732.

Lapointe-Shaw, L; Bell, CM. (2019). Measuring the cost of adverse events in hospital. CMAJ. 191(32): E877-E878.

Lapointe-Shaw, L; Austin, PC; Chung, H; Sander, B; Kwong, JC; Feld, JJ. (2019). Pitfalls in measuring temporal trends for late diagnosis of viral hepatitis. Journal of Hepatology. 71(6): 1251.

Verma, AA; Guo, Y; Kwan, JL; Lapointe-Shaw, L; Rawal, S; Tang, T; Weinerman, A; Razak, F. (2019). Characteristics of short general internal medicine hospital stays: A multicentre cross-sectional study. CMAJ Open. 7(1): E47-E54.

Wettstein, MS; Palmer, KS; Kulkarni, GS; Paterson, JM; Ling, V; Lapointe-Shaw, L; Li, AH; Brown, A; Taljaard, M; Ivers, N. (2019). Management strategies and patient selection after a hospital funding reform for prostate cancer surgery in Canada. JAMA Network Open. 2(8): e1910505.

Lapointe-Shaw, L; Bouck, Z; Howell, NA; Lange, T; Orchanian-Cheff, A; Austin, PC; Ivers, NM; Redelmeier, DA; Bell, CM. (2018). Mediation analysis with a time-to-event outcome: A review of use and reporting in healthcare research. BMC Medical Research Methodology. 18(1): 118.

Lapointe-Shaw, L; Georgie, F; Carlone, D; Cerocchi, O; Chung, H; Dewit, Y; Feld, JJ; Holder, L; Kwong, JC; Sander, B; Flemming, JA. (2018). Identifying Cirrhosis, decompensated Cirrhosis and Hepatocellular Carcinoma in health administrative data: A validation study. PLoS One. 13(8): e0201120.

Rawal, S; Kwan, J; Razak, F et al. (2018). Association between the 'trauma of hospitalization' and 30-day readmission or emergency department visit. JAMA Internal Medicine. 179(1): 38-45.

Lapointe-Shaw, L; Austin, PC; Ivers, NM; Luo, J; Redelmeier, DA; Bell, CM. (2018). Death and readmissions after hospital discharge during the December holiday: The home for the holidays cohort study. BMJ. 363: K4481.

Verma, AA; Guo, Y; Kwan, JL; Lapointe-Shaw, L; Rawal, S; Tang, T; Weinerman, A; Razak, F. (2018). Prevalence and costs of discharge diagnoses in inpatient general medicine: A multi-center cross-sectional study. Journal of General Internal Medicine. 33(11): 1899-1904.

Verma, AA; Masoom, H; Rawal, S; Guo, Y; Razak, F; GEMINI Investigators (a part of group). (2017). Pulmonary embolism and deep venous thrombosis in patients hospitalized with syncope: A multicenter cross-sectional study in Toronto, Ontario, Canada. JAMA Internal Medicine. 177(7): 1046-1048.

Sharma, A; Lo, V; Lapointe-Shaw, L; Soong, C; Wu, PE; Wu, RC. (2017). A time-motion study of residents and medical students performing patient discharges from general internal medicine wards: A disjointed, interrupted process. Internal and Emergency Medicine. 12(6): 789-798.

Verma, AA; Guo, Y; Kwan, JL; Lapointe-Shaw, L et al. (2017). Patient characteristics, resource use and outcomes associated with general internal medicine hospital care: The General Medicine Inpatient Initiative (GEMINI) retrospective cohort study. CMAJ Open. 5(4): E842-E849.

Downar, J; McNaughton, N; Abdelhalim, T et al. (2017). Standardized patient simulation versus didactic teaching alone for improving residents' communication skills when discussing goals of care and resuscitation: A randomized controlled trial. Palliative Medicine. 31(2): 130-139.

Lapointe-Shaw, L; Voruganti, T; Kohler, P; Thein, HH; Sander, B; McGeer, A. (2017). Cost-effectiveness analysis of universal screening for Carbapenemase-producing Enterobacteriaceae in hospital inpatients. European Journal of Clinical Microbiology and Infectious Diseases. 36(6): 1047-1055.

Lapointe-Shaw, L; Mamdani, M; Luo, J; Austin, P; Ivers, N; Redelmeier, D; Bell, C. (2017). Effectiveness of a financial incentive to physicians for timely follow-up after hospital discharge: A population-based time series analysis. CMAJ. 189(39): E1224-E1229.

Chartier, LB; Bosco, L; Lapointe-Shaw, L; Chenkin, J. (2017). Use of point-of-care ultrasound in long bone fractures: A systematic review and meta-analysis. Canadian Journal of Emergency Medicine. 19(2): 131-142.

Cheung, A; Lapointe-Shaw, L; Kowgier, M et al. (2016). Combined ursodeoxycholic acid (UDCA) and fenofibrate in primary biliary cholangitis (PBC) patients with incomplete UDCA response may improve outcomes. Alimentary Pharmacology and Therapeutics. 43(2): 283-93.

Lapointe-Shaw, L; Abushomar, H; Chen, XK; Gapanenko, K; Taylor, C; Krzyzanowska, M; Bell, C. (2016). Care and outcomes of patients with cancer admitted to hospital on weekends and holidays. Journal of the National Comprehensive Cancer Network. 14(7): 867-874.

Lapointe-Shaw, L; Tran, KL; Coyte, PC; Hancock-Howard, RL; Powis, J; Poutanen, SM; Hota, S. (2016). Cost-effectiveness analysis of five strategies to treat recurrent Clostridium difficile infection. PLoS One. 11(2): e0149521.

Reports
1. Stall, NM; Nakamachi, Y; Chang, M; Isaacksz, S; Niedra, CL; Brown, KA; Costa, AP; Hodges, B; Huynh,T; Ikura, S; Jones, A; Lapointe-Shaw, L et al. (2021). Mobile In-Home COVID-19 Vaccination of Ontario Homebound Older Adults by Neighbourhood Risk.9. Science Table.

2. Lapointe-Shaw L. (2020). Forum & Mainstreet Research. COVID-19 Study Ontario - Wave 2. 2020 Apr 22.49. Mainstreet Research.

3. Lapointe-Shaw L. (2020). Forum & Mainstreet Research. COVID-19 Symptom Study- Ontario. 2020 Apr 15.107. Mainstreet Research.

Clinical Care Guidelines
1. Co-Lead. Choosing Wisely Canada- General Internal Medicine. (2018).
Contributors: Leads: Adina Weinerman, Lauren Lapointe-Shaw Contributors: Canadian Society of Internal Medicine membership and CWC committee Description / Contribution Value: Addition of 5 more recommendations
 

Conference Publications
1. Lapointe-Shaw, L. Late diagnosis of Hepatitis C infection: Risk factors and trends over time. University of Toronto, Toronto, Ontario, Canada, Toronto, Canada

2. Lapointe-Shaw, L; Bouck, Z; Howell, NA et al. Mediation analysis with a time-to-event outcome: A review of use and reporting in healthcare research. American College of Physicians Annual Meeting

3. Verma, AA; Kwan, J; Lapointe-Shaw, L; Rawal, S; Tang, T; Weinerman, A; Pablo, L; Razak, F. Designing and implementing a General Medicine Inpatient Clinical Registry (GEMINI). University of Toronto General Internal Medicine Research Day, Toronto, Canada

4. Juan, J; Hicks, LK; Lapointe-Shaw, L; Truong, J; Zurawska, U; Chan, K; Feld, JJ. Preventing HBV reactivation: An automated prompt to remind oncologists to screen was only partially successful. Viral Hepatitis Congress

5. Cheung, AC; Lapointe-Shaw, L; Kowgier, M; Meza-Cardona, J; Janssen, HL; Feld, JJ. Fenofibratetherapy in patients with primary biliary cirrhosis and incomplete response to UDCA is associated with improved alkaline phosphatase/trend towards decompensation/transplant-free survival. American Association for the Study of Liver Diseases

6. Lapointe-Shaw, L; Austin, PC; Ivers, NM; Luo, J; Redelmeier, DA; Bell, CM. Death and readmissions after hospital discharge during the December holiday. Canadian Association of Health Services and Policy Research, Virtual, Montreal, Canada
Conference Date: 2021/5

7. *Bartsch, E; Shin, S; Verma, AA; Razak, F; Lapointe-Shaw, L. Delays for medical imaging and radiology procedures among medical inpatients: A cohort study. Canadian Association for Health Services and Policy Research (CAHSPR) Annual Meeting, Virtual
Conference Date: 2021/5

8. *Maharaj, A; Parker, J; Hopkins, J et al. Anticipating the curve: Can online symptom-based data reflect COVID-19 case activity in Ontario, Canada?. Undergraduate Medicine Research Day, Toronto, Canada
Conference Date: 2021/2

9. Lapointe-Shaw, L. Community pharmacy medication review, death and readmission after hospital discharge. Department of Medicine Annual Day, Toronto, Canada
Conference Date: 2019/6

10. Lapointe-Shaw, L; Bell, CM; Austin, PC et al. Community pharmacy medication review, death and readmission after hospital discharge. Society of General Internal Medicine (SGIM) Annual Meeting, Washington, United States
Conference Date: 2019/5

11. Lapointe-Shaw, L; Chung, H; Holder, L; Cerocchi, O; Kwong, J; Sander, B; Feld, JJ. Very late diagnosis of chronic Hepatitis B infection in Ontario, Canada. Global Hepatitis Summit, Toronto, Canada
Conference Date: 2018/6

12. Lapointe-Shaw, L; Chung, H; Holder, L; Cerocchi, O; Kwong, J; Sander, B; Feld, JJ. Very late diagnosis of chronic Hepatitis C infection in Ontario, Canada. Global Hepatitis Summit, Toronto, Canada
Conference Date: 2018/6