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Michael Kohn, MD, MPP

TitleAssociate Adjunct Professor
SchoolUCSF School of Medicine
DepartmentEpidemiology & Biostatistics
Address550 16th. Street
San Francisco CA 94158
Phone415-514-8142
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    Collapse Biography 
    Collapse Awards and Honors
    Clinical and Translational Sciences Institute2012CTSI Consultant of the Year
    UCSF Training in Clinical Research Program2012Hulley Award for Classroom Teaching
    Clinical and Translational Sciences Institute2011CTSI Consultant of the Year
    Clinical and Translational Sciences Institute2010CTSI Consultant of the Year

    Collapse Overview 
    Collapse Overview
    Dr. Kohn's primary research interest is in diagnostic and prognostic testing for stroke, myocardial infarction, sepsis, and other emergency conditions. However, he has also been involved in several treatment trials.

    He also provides study design consultations to clinical investigators through the CTSI Consulting Service and created the UCSF CTSI’s online sample size calculators (www.sample-size.net). He is an expert on database management for clinical research, both setting up study databases and extracting data from the electronic health record.

    Dr. Kohn has been teaching in the Training in Clinical Research (TICR) Program since 2000, including 10 years (until 2012) as co-director, lecturer, and section leader in the program's flagship "Designing Clinical Research" course. He directs the course on data management for clinical research, co-directs the clinical epidemiology course, leads one of the two second-year master’s seminars, and directs the UCSF Workshop on Evidence-Based Diagnosis. With Thomas B. Newman, he co-authored the clinical epidemiology textbook “Evidence-Based Diagnosis” and is a contributing author to Hulley et al, “Designing Clinical Research.”


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    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. Razani N, Morshed S, Kohn M, Wells NM, Thompson D, Alqassari M, Agodi A, Rutherford GW. Effect of park prescriptions with and without group visits to parks on stress reduction in low-income parents: SHINE randomized trial. PLoS One. 2018; 13(2):e0192921. PMID: 29447248.
      View in: PubMed
    2. Wen JW, Kohn M, Wong R, Somsouk M, Khalili M, Maher J, Tana MM. Hospitalizations for Autoimmune Hepatitis Disproportionately Affect Black and Latino Americans. Am J Gastroenterol. 2018 Feb; 113(2):243-253. PMID: 29380822.
      View in: PubMed
    3. Kohn M. In suspected PE, 2% of patients with a Wells score > 4 and negative CT pulmonary angiography had VTE at 3 months. Ann Intern Med. 2017 11 21; 167(10):JC59. PMID: 29159385.
      View in: PubMed
    4. Kohn M, Klok FA, van Es N. D-dimer Interval Likelihood Ratios for Pulmonary Embolism. Acad Emerg Med. 2017 Jul; 24(7):832-837. PMID: 28370759.
      View in: PubMed
    5. Rushakoff RJ, Sullivan MM, MacMaster HW, Shah AD, Rajkomar A, Glidden DV, Kohn M. Association Between a Virtual Glucose Management Service and Glycemic Control in Hospitalized Adult Patients: An Observational Study. Ann Intern Med. 2017 May 02; 166(9):621-627. PMID: 28346946.
      View in: PubMed
    6. Razani N, Kohn M, Wells NM, Thompson D, Hamilton Flores H, Rutherford GW. Design and evaluation of a park prescription program for stress reduction and health promotion in low-income families: The Stay Healthy in Nature Everyday (SHINE) study protocol. Contemp Clin Trials. 2016 11; 51:8-14. PMID: 27693759.
      View in: PubMed
    7. Wai KC, Kohn M, Ballard RA, Truog WE, Black DM, Asselin JM, Ballard PL, Rogers EE, Keller RL. Early Cumulative Supplemental Oxygen Predicts Bronchopulmonary Dysplasia in High Risk Extremely Low Gestational Age Newborns. J Pediatr. 2016 Oct; 177:97-102.e2. PMID: 27470692; PMCID: PMC5037007 [Available on 10/01/17].
      View in: PubMed, PubMed Central
    8. Kohn M, Steinhart B. Broadcasting Not Properly: Using B-type Natriuretic Peptide Interval Likelihood Ratios and the Results of Other Emergency Department Tests to Diagnose Acute Heart Failure in Dyspneic Patients. Acad Emerg Med. 2016 Mar; 23(3):347-50. PMID: 26836437.
      View in: PubMed
    9. Kohn M. Outpatient Versus Hospitalization Management for Uncomplicated Diverticulitis. Ann Surg. 2015 Aug; 262(2):e86. PMID: 24646551.
      View in: PubMed
    10. Golden NH, Katzman DK, Sawyer SM, Ornstein RM, Rome ES, Garber AK, Kohn M, Kreipe RE. Update on the medical management of eating disorders in adolescents. J Adolesc Health. 2015 Apr; 56(4):370-5. PMID: 25659201.
      View in: PubMed
    11. Tabaka ME, Quinn JV, Kohn M, Polevoi SK. Predictors of infection from dog bite wounds: which patients may benefit from prophylactic antibiotics? Emerg Med J. 2015 Nov; 32(11):860-3. PMID: 25634096.
      View in: PubMed
    12. Kohn M. HINTS to identify stroke in ED patients with dizziness. Acad Emerg Med. 2014 Mar; 21(3):347. PMID: 24524556.
      View in: PubMed
    13. Kohn M. Understanding evidence-based diagnosis. Diagnosis (Berl). 2014 Jan 01; 1(1):39-42. PMID: 29539978.
      View in: PubMed
    14. Kohn M, Carpenter CR, Newman TB. Understanding the direction of bias in studies of diagnostic test accuracy. Acad Emerg Med. 2013 Nov; 20(11):1194-206. PMID: 24238322.
      View in: PubMed
    15. Knops SP, Kohn M, Hansen EN, Matityahu A, Marmor M. Rotational malreduction of the syndesmosis: reliability and accuracy of computed tomography measurement methods. Foot Ankle Int. 2013 Oct; 34(10):1403-10. PMID: 23667049.
      View in: PubMed
    16. Quinn JV, Polevoi SK, Kohn M. Traumatic lacerations: what are the risks for infection and has the 'golden period' of laceration care disappeared? Emerg Med J. 2014 Feb; 31(2):96-100. PMID: 23314208; PMCID: PMC3797169.
      View in: PubMed, PubMed Central
    17. Haas V, Stark D, Kohn M, Müller MJ, Clarke S, Blumenthal C, Briody J, Madden S, Gaskin KJ. Evaluation of methods to assess reduced body fat in patients with anorexia nervosa. J Am Coll Nutr. 2013; 32(1):2-10. PMID: 24015694.
      View in: PubMed
    18. Gupta N, Lustig RH, Kohn M, Vittinghoff E. Determination of bone age in pediatric patients with Crohn's disease should become part of routine care. Inflamm Bowel Dis. 2013 Jan; 19(1):61-5. PMID: 22552908.
      View in: PubMed
    19. Gupta N, Lustig RH, Kohn M, Vittinghoff E. Menarche in pediatric patients with Crohn's disease. Dig Dis Sci. 2012 Nov; 57(11):2975-81. PMID: 22744430.
      View in: PubMed
    20. Kohn M. Reduced lung-cancer mortality with CT screening. N Engl J Med. 2011 Nov 24; 365(21):2036-7; author reply 2037-8. PMID: 22111731.
      View in: PubMed
    21. Gupta N, Lustig RH, Kohn M, McCracken M, Vittinghoff E. Sex differences in statural growth impairment in Crohn's disease: role of IGF-1. Inflamm Bowel Dis. 2011 Nov; 17(11):2318-25. PMID: 21287667; PMCID: PMC3136638.
      View in: PubMed, PubMed Central
    22. Humphreys J, Tsoh JY, Kohn M, Gerbert B. Increasing discussions of intimate partner violence in prenatal care using Video Doctor plus Provider Cueing: a randomized, controlled trial. Womens Health Issues. 2011 Mar-Apr; 21(2):136-44. PMID: 21185737; PMCID: PMC3053017.
      View in: PubMed, PubMed Central
    23. Stein JC, Wang R, Adler N, Boscardin J, Jacoby VL, Won G, Goldstein R, Kohn M. Emergency physician ultrasonography for evaluating patients at risk for ectopic pregnancy: a meta-analysis. Ann Emerg Med. 2010 Dec; 56(6):674-83. PMID: 20828874.
      View in: PubMed
    24. Neighbor ML, Dance TR, Hawk M, Kohn M. Heightened pain perception in illicit substance-using patients in the ED: implications for management. Am J Emerg Med. 2011 Jan; 29(1):50-6. PMID: 20825774.
      View in: PubMed
    25. Hersh AL, Kohn M, Newman TB. When is rapid testing for influenza useful? Clin Infect Dis. 2010 Mar 15; 50(6):935-6. PMID: 20166825.
      View in: PubMed
    26. Tang JY, Aszterbaum M, Athar M, Barsanti F, Cappola C, Estevez N, Hebert J, Hwang J, Khaimskiy Y, Kim A, Lu Y, So PL, Tang X, Kohn M, McCulloch CE, Kopelovich L, Bickers DR, Epstein EH. Basal cell carcinoma chemoprevention with nonsteroidal anti-inflammatory drugs in genetically predisposed PTCH1+/- humans and mice. Cancer Prev Res (Phila). 2010 Jan; 3(1):25-34. PMID: 20051370; PMCID: PMC2894531.
      View in: PubMed, PubMed Central
    27. Tsoh JY, Kohn M, Gerbert B. Promoting smoking cessation in pregnancy with Video Doctor plus provider cueing: a randomized trial. Acta Obstet Gynecol Scand. 2010; 89(4):515-23. PMID: 20196678; PMCID: PMC3312043.
      View in: PubMed, PubMed Central
    28. Kohn M, Fahimi J, Newman TB, Sostman HD, Stein PD, Hull RD. Result categories for ventilation-perfusion scintigraphy. Radiology. 2009 Nov; 253(2):575; author reply 575. PMID: 19864536.
      View in: PubMed
    29. Somsouk M, Guy J, Biggins SW, Vittinghoff E, Kohn M, Inadomi JM. Ascites improves upon [corrected] serum sodium plus [corrected] model for end-stage liver disease (MELD) for predicting mortality in patients with advanced liver disease. Aliment Pharmacol Ther. 2009 Oct; 30(7):741-8. PMID: 19604177; PMCID: PMC2742706.
      View in: PubMed, PubMed Central
    30. Newman TB, Kohn M. Universal primer polymerase chain reaction looks promising for newborns with low pretest probability of sepsis. Arch Pediatr Adolesc Med. 2009 Jul; 163(7):675-6; author reply 676. PMID: 19581557.
      View in: PubMed
    31. Kohn M, Newman TB. Arrhythmogenic right ventricular cardiomyopathy. N Engl J Med. 2009 Jun 25; 360(26):2784-5; author reply 2785-6. PMID: 19557886.
      View in: PubMed
    32. Madden S, Morris A, Zurynski YA, Kohn M, Elliot EJ. Burden of eating disorders in 5-13-year-old children in Australia. Med J Aust. 2009 Apr 20; 190(8):410-4. PMID: 19374611.
      View in: PubMed
    33. Thomas B. Newman and Michael A. Kohn. Evidence-Based Diagnosis. 2009.
    34. Krasnoff JB, Kohn M, Choy FK, Doyle J, Johansen K, Painter PL. Interunit and intraunit reliability of the RT3 triaxial accelerometer. J Phys Act Health. 2008 Jul; 5(4):527-38. PMID: 18648118.
      View in: PubMed
    35. Calderón SH, Gilbert P, Jackson R, Kohn M, Gerbert B. Cueing prenatal providers effects on discussions of intimate partner violence. Am J Prev Med. 2008 Feb; 34(2):134-7. PMID: 18201643; PMCID: PMC2242423.
      View in: PubMed, PubMed Central
    36. Pletcher MJ, Kertesz SG, Kohn M, Gonzales R. Trends in opioid prescribing by race/ethnicity for patients seeking care in US emergency departments. JAMA. 2008 Jan 02; 299(1):70-8. PMID: 18167408.
      View in: PubMed
    37. Quinn J, McDermott D, Kramer N, Yeh C, Kohn M, Stiell I, Wells G. Death after emergency department visits for syncope: how common and can it be predicted? Ann Emerg Med. 2008 May; 51(5):585-90. PMID: 17889403.
      View in: PubMed
    38. Quinn J, McDermott D, Stiell I, Kohn M, Wells G. Prospective validation of the San Francisco Syncope Rule to predict patients with serious outcomes. Ann Emerg Med. 2006 May; 47(5):448-54. PMID: 16631985.
      View in: PubMed
    39. Olney RK, Murphy J, Forshew D, Garwood E, Miller BL, Langmore S, Kohn M, Lomen-Hoerth C. The effects of executive and behavioral dysfunction on the course of ALS. Neurology. 2005 Dec 13; 65(11):1774-7. PMID: 16344521.
      View in: PubMed
    40. Neighbor ML, Baird CH, Kohn M. Changing opioid use for right lower quadrant abdominal pain in the emergency department. Acad Emerg Med. 2005 Dec; 12(12):1216-20. PMID: 16293897.
      View in: PubMed
    41. Kohn M, Kwan E, Gupta M, Tabas JA. Prevalence of acute myocardial infarction and other serious diagnoses in patients presenting to an urban emergency department with chest pain. J Emerg Med. 2005 Nov; 29(4):383-90. PMID: 16243193.
      View in: PubMed
    42. Quinn JV, Stiell IG, McDermott DA, Kohn M, Wells GA. The San Francisco Syncope Rule vs physician judgment and decision making. Am J Emerg Med. 2005 Oct; 23(6):782-6. PMID: 16182988.
      View in: PubMed
    43. Kohn M. White blood cell count intervals and likelihood ratios for appendicitis. Acad Emerg Med. 2005 May; 12(5):480; author reply 480-1. PMID: 15860704.
      View in: PubMed
    44. Kohn M, Michaels AD. Likelihood ratio reporting. Mayo Clin Proc. 2005 Apr; 80(4):563; author reply 563-4. PMID: 15819297.
      View in: PubMed
    45. Neighbor ML, Honner S, Kohn M. Factors affecting emergency department opioid administration to severely injured patients. Acad Emerg Med. 2004 Dec; 11(12):1290-6. PMID: 15576519.
      View in: PubMed
    46. Quinn JV, Stiell IG, McDermott DA, Sellers KL, Kohn M, Wells GA. Derivation of the San Francisco Syncope Rule to predict patients with short-term serious outcomes. Ann Emerg Med. 2004 Feb; 43(2):224-32. PMID: 14747812.
      View in: PubMed
    47. Kohn M, Hammel JM, Bretz SW, Stangby A. Trauma team activation criteria as predictors of patient disposition from the emergency department. Acad Emerg Med. 2004 Jan; 11(1):1-9. PMID: 14709422.
      View in: PubMed
    48. Kohn M, Kerr K, Malkevich D, O'Neil N, Kerr MJ, Kaplan BC. Beta-human chorionic gonadotropin levels and the likelihood of ectopic pregnancy in emergency department patients with abdominal pain or vaginal bleeding. Acad Emerg Med. 2003 Feb; 10(2):119-26. PMID: 12574008.
      View in: PubMed
    49. Kohn M, Booth M. The worldwide epidemic of obesity in adolescents. Adolesc Med. 2003 Feb; 14(1):1-9. PMID: 12529186.
      View in: PubMed
    50. Fuentes EF, Kohn M, Neighbor ML. Lack of association between patient ethnicity or race and fracture analgesia. Acad Emerg Med. 2002 Sep; 9(9):910-5. PMID: 12208680.
      View in: PubMed
    51. Gupta M, Tabas JA, Kohn M. Presenting complaint among patients with myocardial infarction who present to an urban, public hospital emergency department. Ann Emerg Med. 2002 Aug; 40(2):180-6. PMID: 12140497.
      View in: PubMed
    52. Kohn M, Newman MP. What white blood cell count should prompt antibiotic treatment in a febrile child? Tutorial on the importance of disease likelihood to the interpretation of diagnostic tests. Med Decis Making. 2001 Nov-Dec; 21(6):479-89. PMID: 11760105.
      View in: PubMed
    53. Kohn M, Newman TB. Indications for computed tomography after minor head injury. N Engl J Med. 2000 Nov 23; 343(21):1571. PMID: 11184748.
      View in: PubMed
    54. Kohn M. Missed diagnoses of acute cardiac ischemia. N Engl J Med. 2000 Nov 16; 343(20):1492-3; discussion 1493-4. PMID: 11184458.
      View in: PubMed
    55. Kohn M, Vosti CL, Lezotte D, Jones RH. Optimal gestational age and birth-weight cutoffs to predict neonatal morbidity. Med Decis Making. 2000 Oct-Dec; 20(4):369-76. PMID: 11059470.
      View in: PubMed
    56. Okin RL, Boccellari A, Azocar F, Shumway M, O'Brien K, Gelb A, Kohn M, Harding P, Wachsmuth C. The effects of clinical case management on hospital service use among ED frequent users. Am J Emerg Med. 2000 Sep; 18(5):603-8. PMID: 10999578.
      View in: PubMed
    57. Mandelberg JH, Kuhn RE, Kohn M. Epidemiologic analysis of an urban, public emergency department's frequent users. Acad Emerg Med. 2000 Jun; 7(6):637-46. PMID: 10905642.
      View in: PubMed
    58. Kohn M. Diagnostic accuracy of ultrasound above and below the beta-hCG discriminatory zone. Obstet Gynecol. 2000 Mar; 95(3):475-6. PMID: 10711570.
      View in: PubMed
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