Clinical Epidemiology & Biostatistics

John You

BSc (McMaster), MD (Toronto), MSc (Toronto), FRCPC

Assistant Professor, Department of Medicine

Joint Member, Department of Clinical Epidemiology & Biostatistics

Adjunct Scientist, Institute for Clinical Evaluative Sciences

Attending Staff, Hamilton Health Sciences Corporation

Member, CLARITY (Clinical Advances through Research and Information Translation)

  905-525-9140, ext: 21858

Postal address: McMaster University Medical Centre
1280 Main Street West, Room HSC-2C8
Hamilton, Ontario, Canada  L8S 4K1

Office location:  HSC-2C8

Administrative Assistant:
Linda Moore, HSC-3V51
 905-521-2100, ext: 76401

Academic Interests

Dr. You's research aims to improve the quality of communication, decision-making, and care at the end-of-life, with a particular emphasis on the seriously ill hospitalized patient. Dr. You also has an interest in systematic reviews and clinical trials methodology.

Selected Publications

  1. You JJ, Purdy I, Rothwell D, Przybysz R, Fang J, Laupacis A. Indications for and results of outpatient computed tomography and magnetic resonance imaging: a population-based study. Can Assoc Radiol J 2008;59:135-43.
  2. You JJ, Yun L, Tu JV. Impact of picture archiving communication systems on rates of duplicate imaging: a before-after study. BMC Health Serv Res 2008;8:234.
  3. You JJ, Venkatesh V, Laupacis A. Better access to outpatient magnetic resonance imaging in Ontario: but for whom? Open Medicine 2009;3:22-5.
  4. You JJ, Levinson W, Laupacis A. Attitudes of family physicians, specialists, and radiologists about the use of computed tomography and magnetic resonance imaging in Ontario. Healthcare Policy 2009;15:54-65.
  5. You JJ, Alter DA, Stukel T, McDonald S, Laupacis A, Liu Y, Ray JG. Proliferation of prenatal ultrasonography. CMAJ 2010;182:143-51.
  6. Bassler D, Briel M, Montori VM, Lane M, Glasziou P, Zhou Q, Heels-Ansdell D, Walter SD, Guyatt GH; STOPIT-2 Study Group, Flynn DN, Elamin MB, Murad MH, Abu Elnour NO, Lampropulos JF, Sood A, Mullan RJ, Erwin PJ, Bankhead CR, Perera R, Ruiz Culebro C, You JJ, Mulla SM, Kaur J, Nerenberg KA, Schünemann H, Cook DJ, Lutz K, Ribic CM, Vale N, Malaga G, Akl EA, Ferreira-Gonzalez I, Alonso-Coello P, Urrutia G, Kunz R, Bucher HC, Nordmann AJ, Raatz H, da Silva SA, Tuche F, Strahm B, Djulbegovic B, Adhikari NK, Mills EJ, Gwadry-Sridhar F, Kirpalani H, Soares HP, Karanicolas PJ, Burns KE, Vandvik PO, Coto-Yglesias F, Chrispim PP, Ramsay T. Stopping randomized trials early for benefit and estimation of treatment effects: systematic review and meta-regression analysis. JAMA 2010;303:1180-7.
  7. You JJ, Laupacis A, Newman A, Bell CM. Non-adherence to recommendations for further testing after outpatient computed tomography and magnetic resonance imaging. Am J Med 2010;123:557.e1-557.e8.
  8. Ray JG, Schull MJ, Urquia ML, You JJ, Guttmann A, Vermeulen MJ. Major radiodiagnostic imaging in pregnancy and the risk of childhood malignancy: a population-based cohort study in Ontario. PLoS Med 2010;7:e1000337.
  9. You JJ, Gladstone J, Symons S, Rotstein D, Laupacis A, Bell CM. Patterns of care and health outcomes after outpatient computed tomography scans for headache. [in press, Am J Med]
  10. Cheng FHT, You JJ, Rampersaud YR. Relationship between spinal MRI findings and candidacy for spinal surgery. [in press, Can Fam Phys]

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