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Association between Physician Intensity of Antibiotic Prescribing and the Prescription of Benzodiazepines, Opioids and Proton-Pump Inhibitors to Nursing Home Residents: a Population-Based Observational Study.

Quinn KL, Campitelli MA, Diong C, Daneman N, Stall NM, Morris AM, Detsky AS, Jeffs L, Maxwell CJ, Bell CM, Bronskill SE.

J Gen Intern Med. 2019 Dec;34(12):2763-2771. doi: 10.1007/s11606-019-05333-8. Epub 2019 Oct 1.


Time trends in opioid prescribing among Ontario long-term care residents: a repeated cross-sectional study.

Iaboni A, Campitelli MA, Bronskill SE, Diong C, Kumar M, Maclagan LC, Gomes T, Tadrous M, Maxwell CJ.

CMAJ Open. 2019 Sep 23;7(3):E582-E589. doi: 10.9778/cmajo.20190052. Print 2019 Jul-Sep.


Influenza Vaccine Effectiveness in Preventing Hospitalizations in Older Patients With Chronic Obstructive Pulmonary Disease.

Gershon AS, Chung H, Porter J, Campitelli MA, Buchan SA, Schwartz KL, Crowcroft NS, Campigotto A, Gubbay JB, Karnauchow T, Katz K, McGeer AJ, McNally JD, Richardson DC, Richardson SE, Rosella LC, Simor AE, Smieja M, Zahariadis G, Kwong JC.

J Infect Dis. 2019 Sep 24. pii: jiz419. doi: 10.1093/infdis/jiz419. [Epub ahead of print]


Influenza Vaccine Effectiveness Among Patients With Cancer: A Population-Based Study Using Health Administrative and Laboratory Testing Data From Ontario, Canada.

Blanchette PS, Chung H, Pritchard KI, Earle CC, Campitelli MA, Buchan SA, Schwartz KL, Crowcroft NS, Gubbay JB, Karnauchow T, Katz K, McGeer AJ, McNally JD, Richardson DC, Richardson SE, Rosella LC, Simor A, Smieja M, Zahariadis G, Campigotto A, Kwong JC.

J Clin Oncol. 2019 Oct 20;37(30):2795-2804. doi: 10.1200/JCO.19.00354. Epub 2019 Aug 29.


Sodium glucose cotransporter 2 inhibitors and risk of genital mycotic and urinary tract infection: A population-based study of older women and men with diabetes.

Lega IC, Bronskill SE, Campitelli MA, Guan J, Stall NM, Lam K, McCarthy LM, Gruneir A, Rochon PA.

Diabetes Obes Metab. 2019 Nov;21(11):2394-2404. doi: 10.1111/dom.13820. Epub 2019 Jul 21.


Joint impact of dementia and frailty on healthcare utilisation and outcomes: a retrospective cohort study of long-stay home care recipients.

Maxwell CJ, Mondor L, Hogan DB, Campitelli MA, Bronskill SE, Seitz DP, Wodchis WP.

BMJ Open. 2019 Jun 21;9(6):e029523. doi: 10.1136/bmjopen-2019-029523.


Characteristics of patients vaccinated against influenza in physician offices versus pharmacies and predictors of vaccination location: a cross-sectional study.

Waite NM, Cadarette SM, Campitelli MA, Consiglio GP, Houle SKD, Kwong JC.

CMAJ Open. 2019 Jun 21;7(2):E421-E429. doi: 10.9778/cmajo.20180189. Print 2019 Apr-Jun.


Can routinely collected laboratory and health administrative data be used to assess influenza vaccine effectiveness? Assessing the validity of the Flu and Other Respiratory Viruses Research (FOREVER) Cohort.

Kwong JC, Buchan SA, Chung H, Campitelli MA, Schwartz KL, Crowcroft NS, Jackson ML, Karnauchow T, Katz K, McGeer AJ, McNally JD, Richardson DC, Richardson SE, Rosella LC, Simor A, Smieja M, Zahariadis G, Campigotto A, Gubbay JB.

Vaccine. 2019 Jul 18;37(31):4392-4400. doi: 10.1016/j.vaccine.2019.06.011. Epub 2019 Jun 17.


Prescribing Patterns for Treatment of Mycobacterium avium Complex and M. xenopi Pulmonary Disease in Ontario, Canada, 2001-2013.

Brode SK, Chung H, Campitelli MA, Kwong JC, Marchand-Austin A, Winthrop KL, Jamieson FB, Marras TK.

Emerg Infect Dis. 2019 Jul;25(7). doi: 10.3201/eid2507.181817.


The Incremental Health Care Costs of Frailty Among Home Care Recipients With and Without Dementia in Ontario, Canada: A Cohort Study.

Mondor L, Maxwell CJ, Hogan DB, Bronskill SE, Campitelli MA, Seitz DP, Wodchis WP.

Med Care. 2019 Jul;57(7):512-520. doi: 10.1097/MLR.0000000000001139.


Characteristics and Outcomes of Young Children Hospitalized With Laboratory-confirmed Influenza or Respiratory Syncytial Virus in Ontario, Canada, 2009-2014.

Buchan SA, Chung H, Karnauchow T, McNally JD, Campitelli MA, Gubbay JB, Katz K, McGeer AJ, Richardson DC, Richardson SE, Simor A, Smieja M, Zahariadis G, Tran D, Crowcroft NS, Rosella LC, Kwong JC.

Pediatr Infect Dis J. 2019 Apr;38(4):362-369. doi: 10.1097/INF.0000000000002164.


The Association of Resident Communication Abilities and Antibiotic Use in Long-Term Care.

Saxena FE, Bronskill SE, Brown KA, Campitelli MA, Garber G, Langford B, Maxwell CJ, McCormack D, Schwartz KL, Daneman N.

J Am Geriatr Soc. 2019 Jun;67(6):1164-1173. doi: 10.1111/jgs.15771. Epub 2019 Jan 28.


One-year survival and admission to hospital for cardiovascular events among older residents of long-term care facilities who were prescribed intensive- and moderate-dose statins.

Campitelli MA, Maxwell CJ, Maclagan LC, Ko DT, Bell CM, Jeffs L, Morris AM, Lapane KL, Daneman N, Bronskill SE.

CMAJ. 2019 Jan 14;191(2):E32-E39. doi: 10.1503/cmaj.180853.


Integrating Population-Wide Laboratory Testing Data with Audit and Feedback Reports for Ontario Physicians.

Campitelli MA, Kumar M, Greenberg A; ICES/HQO Ontario Laboratory Information System Working Group.

Healthc Q. 2018 Jul;21(2):6-9. doi: 10.12927/hcq.2018.25630.


Predictors of Cholinesterase Discontinuation during the First Year after Nursing Home Admission.

Maclagan LC, Bronskill SE, Guan J, Campitelli MA, Herrmann N, Lapane KL, Hogan DB, Amuah JE, Seitz DP, Gill SS, Maxwell CJ.

J Am Med Dir Assoc. 2018 Nov;19(11):959-966.e4. doi: 10.1016/j.jamda.2018.07.020. Epub 2018 Sep 24.


Low-Dose Trazodone, Benzodiazepines, and Fall-Related Injuries in Nursing Homes: A Matched-Cohort Study.

Bronskill SE, Campitelli MA, Iaboni A, Herrmann N, Guan J, Maclagan LC, Watt J, Rochon PA, Morris AM, Jeffs L, Bell CM, Maxwell CJ.

J Am Geriatr Soc. 2018 Oct;66(10):1963-1971. doi: 10.1111/jgs.15519. Epub 2018 Sep 24.


Variation in the health outcomes associated with frailty among home care clients: relevance of caregiver distress and client sex.

Maxwell CJ, Campitelli MA, Diong C, Mondor L, Hogan DB, Amuah JE, Leslie S, Seitz D, Gill S, Thavorn K, Wodchis WP, Gruneir A, Teare G, Bronskill SE.

BMC Geriatr. 2018 Sep 12;18(1):211. doi: 10.1186/s12877-018-0899-8.


Acute Myocardial Infarction after Laboratory-Confirmed Influenza Infection.

Kwong JC, Schwartz KL, Campitelli MA.

N Engl J Med. 2018 Jun 28;378(26):2540-2541. doi: 10.1056/NEJMc1805679. No abstract available.


The association between home care visits and same-day emergency department use: a case-crossover study.

Jones A, Schumacher C, Bronskill SE, Campitelli MA, Poss JW, Seow H, Costa AP.

CMAJ. 2018 Apr 30;190(17):E525-E531. doi: 10.1503/cmaj.170892.


Reply to Goulden et al.: Risk of Bias in Study of Varenicline and Cardiovascular Outcomes.

Gershon AS, Campitelli MA, Hawken S, Sproule BA, Selby P.

Am J Respir Crit Care Med. 2018 Sep 1;198(5):691-692. doi: 10.1164/rccm.201804-0639LE. No abstract available.


Acute Myocardial Infarction after Laboratory-Confirmed Influenza Infection.

Kwong JC, Schwartz KL, Campitelli MA, Chung H, Crowcroft NS, Karnauchow T, Katz K, Ko DT, McGeer AJ, McNally D, Richardson DC, Rosella LC, Simor A, Smieja M, Zahariadis G, Gubbay JB.

N Engl J Med. 2018 Jan 25;378(4):345-353. doi: 10.1056/NEJMoa1702090.


Relevance of frailty to mortality associated with the use of antipsychotics among community-residing older adults with impaired cognition.

Maxwell CJ, Campitelli MA, Hogan DB, Diong C, Austin PC, Amuah JE, Lapane K, Seitz DP, Gill SS, Gruneir A, Wodchis WP, Bronskill SE.

Pharmacoepidemiol Drug Saf. 2018 Mar;27(3):289-298. doi: 10.1002/pds.4385. Epub 2018 Jan 10.


Cardiovascular and Neuropsychiatric Events after Varenicline Use for Smoking Cessation.

Gershon AS, Campitelli MA, Hawken S, Victor C, Sproule BA, Kurdyak P, Selby P.

Am J Respir Crit Care Med. 2018 Apr 1;197(7):913-922. doi: 10.1164/rccm.201706-1204OC.


Vaccine effectiveness against laboratory-confirmed influenza hospitalizations among young children during the 2010-11 to 2013-14 influenza seasons in Ontario, Canada.

Buchan SA, Chung H, Campitelli MA, Crowcroft NS, Gubbay JB, Karnauchow T, Katz K, McGeer AJ, McNally JD, Richardson D, Richardson SE, Rosella LC, Simor A, Smieja M, Tran D, Zahariadis G, Kwong JC.

PLoS One. 2017 Nov 17;12(11):e0187834. doi: 10.1371/journal.pone.0187834. eCollection 2017.


The risk of mycobacterial infections associated with inhaled corticosteroid use.

Brode SK, Campitelli MA, Kwong JC, Lu H, Marchand-Austin A, Gershon AS, Jamieson FB, Marras TK.

Eur Respir J. 2017 Sep 20;50(3). pii: 1700037. doi: 10.1183/13993003.00037-2017. Print 2017 Sep.


The Variation of Statin Use Among Nursing Home Residents and Physicians: A Cross-Sectional Analysis.

Campitelli MA, Maxwell CJ, Giannakeas V, Bell CM, Daneman N, Jeffs L, Morris AM, Austin PC, Hogan DB, Ko DT, Lapane KL, Maclagan LC, Seitz DP, Bronskill SE.

J Am Geriatr Soc. 2017 Sep;65(9):2044-2051. doi: 10.1111/jgs.15013. Epub 2017 Aug 9.


Frailty and Potentially Inappropriate Medication Use at Nursing Home Transition.

Maclagan LC, Maxwell CJ, Gandhi S, Guan J, Bell CM, Hogan DB, Daneman N, Gill SS, Morris AM, Jeffs L, Campitelli MA, Seitz DP, Bronskill SE.

J Am Geriatr Soc. 2017 Oct;65(10):2205-2212. doi: 10.1111/jgs.15016. Epub 2017 Jul 28.


The Effect of Changes in Cervical Cancer Screening Guidelines on Chlamydia Testing.

Naimer MS, Kwong JC, Bhatia D, Moineddin R, Whelan M, Campitelli MA, Macdonald L, Lofters A, Tuite A, Bogler T, Permaul JA, McIsaac WJ.

Ann Fam Med. 2017 Jul;15(4):329-334. doi: 10.1370/afm.2097.


Influences on the start, selection and duration of treatment with antibiotics in long-term care facilities.

Daneman N, Campitelli MA, Giannakeas V, Morris AM, Bell CM, Maxwell CJ, Jeffs L, Austin PC, Bronskill SE.

CMAJ. 2017 Jun 26;189(25):E851-E860. doi: 10.1503/cmaj.161437.


Pulmonary Nontuberculous Mycobacteria-Associated Deaths, Ontario, Canada, 2001-2013.

Marras TK, Campitelli MA, Lu H, Chung H, Brode SK, Marchand-Austin A, Winthrop KL, Gershon AS, Kwong JC, Jamieson FB.

Emerg Infect Dis. 2017 Mar;23(3):468-476. doi: 10.3201/eid2303.161927.


Effectiveness of pertussis vaccination and duration of immunity.

Schwartz KL, Kwong JC, Deeks SL, Campitelli MA, Jamieson FB, Marchand-Austin A, Stukel TA, Rosella L, Daneman N, Bolotin S, Drews SJ, Rilkoff H, Crowcroft NS.

CMAJ. 2016 Nov 1;188(16):E399-E406. doi: 10.1503/cmaj.160193. Epub 2016 Sep 26.


Using physician billing claims from the Ontario Health Insurance Plan to determine individual influenza vaccination status: an updated validation study.

Schwartz KL, Jembere N, Campitelli MA, Buchan SA, Chung H, Kwong JC.

CMAJ Open. 2016 Aug 22;4(3):E463-E470. eCollection 2016 Jul-Sep.


The prevalence and health consequences of frailty in a population-based older home care cohort: a comparison of different measures.

Campitelli MA, Bronskill SE, Hogan DB, Diong C, Amuah JE, Gill S, Seitz D, Thavorn K, Wodchis WP, Maxwell CJ.

BMC Geriatr. 2016 Jul 7;16:133. doi: 10.1186/s12877-016-0309-z.


Risk of nontuberculous mycobacterial pulmonary disease with obstructive lung disease.

Marras TK, Campitelli MA, Kwong JC, Lu H, Brode SK, Marchand-Austin A, Gershon AS, Jamieson FB.

Eur Respir J. 2016 Sep;48(3):928-31. doi: 10.1183/13993003.00033-2016. Epub 2016 Jun 10. No abstract available.


Relation between primary care physician supply and diabetes care and outcomes: a cross-sectional study.

Kiran T, Glazier RH, Campitelli MA, Calzavara A, Stukel TA.

CMAJ Open. 2016 Feb 23;4(1):E80-7. doi: 10.9778/cmajo.20150065. eCollection 2016 Jan-Mar.


Improved Survival in Patients with Viral Hepatitis-Induced Hepatocellular Carcinoma Undergoing Recommended Abdominal Ultrasound Surveillance in Ontario: A Population-Based Retrospective Cohort Study.

Thein HH, Campitelli MA, Yeung LT, Zaheen A, Yoshida EM, Earle CC.

PLoS One. 2015 Sep 23;10(9):e0138907. doi: 10.1371/journal.pone.0138907. eCollection 2015.


Trends in relative survival in patients with a diagnosis of hepatocellular carcinoma in Ontario: a population-based retrospective cohort study.

Thein HH, Khoo E, Campitelli MA, Zaheen A, Yi Q, De P, Earle CC.

CMAJ Open. 2015 Apr 2;3(2):E208-16. doi: 10.9778/cmajo.20140118. eCollection 2015 Apr-Jun. Erratum in: CMAJ Open. 2015 Oct-Dec;3(4):E359.


Socioeconomic Status, Sex, Age and Access to Medications for COPD in Ontario, Canada.

Gershon A, Campitelli MA, Hwee J, Croxford R, To T, Stanbrook MB, Upshur R, Stephenson A, Stukel TA.

COPD. 2015;12(6):668-79. doi: 10.3109/15412555.2015.1020148.


Validation of infant immunization billing codes in administrative data.

Schwartz KL, Tu K, Wing L, Campitelli MA, Crowcroft NS, Deeks SL, Wilson SE, Wilson K, Gemmill I, Kwong JC.

Hum Vaccin Immunother. 2015;11(7):1840-7. doi: 10.1080/21645515.2015.1043499.


Increased risk of mycobacterial infections associated with anti-rheumatic medications.

Brode SK, Jamieson FB, Ng R, Campitelli MA, Kwong JC, Paterson JM, Li P, Marchand-Austin A, Bombardier C, Marras TK.

Thorax. 2015 Jul;70(7):677-82. doi: 10.1136/thoraxjnl-2014-206470. Epub 2015 Apr 24.


Simulation study of the effect of influenza and influenza vaccination on risk of acquiring Guillain-Barré syndrome.

Hawken S, Kwong JC, Deeks SL, Crowcroft NS, McGeer AJ, Ducharme R, Campitelli MA, Coyle D, Wilson K.

Emerg Infect Dis. 2015 Feb;21(2):224-31. doi: 10.3201/eid2102.131879.


Long-acting β-agonists with vs without inhaled corticosteroids for COPD--reply.

Gershon AS, Campitelli MA, Stanbrook MB.

JAMA. 2015 Jan 20;313(3):305-6. doi: 10.1001/jama.2014.16479. No abstract available.


Combination long-acting β-agonists and inhaled corticosteroids compared with long-acting β-agonists alone in older adults with chronic obstructive pulmonary disease.

Gershon AS, Campitelli MA, Croxford R, Stanbrook MB, To T, Upshur R, Stephenson AL, Stukel TA.

JAMA. 2014 Sep 17;312(11):1114-21. doi: 10.1001/jama.2014.11432.


Risk of mycobacterial infections associated with rheumatoid arthritis in Ontario, Canada.

Brode SK, Jamieson FB, Ng R, Campitelli MA, Kwong JC, Paterson JM, Li P, Marchand-Austin A, Bombardier C, Marras TK.

Chest. 2014 Sep;146(3):563-572. doi: 10.1378/chest.13-2058.


Influenza and seasonal patterns of hospital use by older adults in long-term care and community settings in Ontario, Canada.

Gruneir A, Kwong JC, Campitelli MA, Newman A, Anderson GM, Rochon PA, Mor V.

Am J Public Health. 2014 Feb;104(2):e141-7. doi: 10.2105/AJPH.2013.301519. Epub 2013 Dec 12.


Effectiveness of inactivated influenza vaccines in preventing influenza-associated deaths and hospitalizations among Ontario residents aged ≥ 65 years: estimates with generalized linear models accounting for healthy vaccinee effects.

Ridenhour BJ, Campitelli MA, Kwong JC, Rosella LC, Armstrong BG, Mangtani P, Calzavara AJ, Shay DK.

PLoS One. 2013 Oct 16;8(10):e76318. doi: 10.1371/journal.pone.0076318. eCollection 2013.


Risk of Guillain-Barré syndrome after seasonal influenza vaccination and influenza health-care encounters: a self-controlled study.

Kwong JC, Vasa PP, Campitelli MA, Hawken S, Wilson K, Rosella LC, Stukel TA, Crowcroft NS, McGeer AJ, Zinman L, Deeks SL.

Lancet Infect Dis. 2013 Sep;13(9):769-76. doi: 10.1016/S1473-3099(13)70104-X. Epub 2013 Jun 28.


Vaccine effectiveness against laboratory-confirmed influenza hospitalizations among elderly adults during the 2010-2011 season.

Kwong JC, Campitelli MA, Gubbay JB, Peci A, Winter AL, Olsha R, Turner R, Rosella LC, Crowcroft NS.

Clin Infect Dis. 2013 Sep;57(6):820-7. doi: 10.1093/cid/cit404. Epub 2013 Jun 20.


Seasonal influenza vaccine effectiveness in pre- and full-term children aged 6-23 months over multiple seasons.

Shen S, Campitelli MA, Calzavara A, Guttmann A, Kwong JC.

Vaccine. 2013 Jun 24;31(29):2974-8. doi: 10.1016/j.vaccine.2013.05.011. Epub 2013 May 18.


The association between obesity and outpatient visits for acute respiratory infections in Ontario, Canada.

Campitelli MA, Rosella LC, Kwong JC.

Int J Obes (Lond). 2014 Jan;38(1):113-9. doi: 10.1038/ijo.2013.57. Epub 2013 Apr 22.

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