Nicholas Vozoris


Associate Scientist, Li Ka Shing Knowledge Institute



Dr. Vozoris is an Assistant Professor and Clinician Investigator within the Division of Respirology, Department of Medicine, at the University of Toronto. He is also a Staff Respirologist at St. Michael’s Hospital with expertise in sleep medicine, HHT and tuberculosis. He completed a Masters of Health Sciences degree in the Department of Community Health at the University of Toronto prior to his medical training. He also undertook research training at the Institute of Clinical Evaluative Sciences prior to coming on faculty at the University of Toronto. His main research interest is areas of overlap between sleep medicine and obstructive lung disease, such as the pharmacoepidemiology and health outcomes of sedative medication use in chronic respiratory disease populations. He also has research interests in the health effects of insomnia.  He uses observational study designs and techniques, and different types of pre-existing, population-based databases, such as Ontario provincial health administrative databases that are housed at the Institute of Clinical Evaluative Sciences and United States national health survey data that are available through the Centers for Disease Control and Prevention. He is a member of the Ontario COPD Population Health Network (COPD OPHN), which is a group of academic respirologists from various universities across Ontario who are working collaboratively on health services and health outcomes research relating to COPD.

Recent Publications

  1. Vozoris, NT, O'Donnell, DE. The need to address increasing opioid use in elderly COPD patients. Expert Rev Respir Med. 2016;10 (3):245-8. doi: 10.1586/17476348.2016.1143776. PubMed PMID:26783198 .
  2. Vozoris, NT. Insomnia Symptoms Are Not Associated with Dyslipidemia: A Population-Based Study. Sleep. 2016;39 (3):551-8. doi: 10.5665/sleep.5524. PubMed PMID:26612387 PubMed Central PMC4763367.
  3. Vozoris, NT, Gill, SS, O'Donnell, DE. Opioids in COPD: the 'whole picture' includes results from real-world, population-based observational studies. Br J Clin Pharmacol. 2016;81 (4):797-8. doi: 10.1111/bcp.12838. PubMed PMID:26592364 PubMed Central PMC4799928.
  4. Vozoris, NT, Wang, X, Fischer, HD, Gershon, AS, Bell, CM, Gill, SS et al.. Incident opioid drug use among older adults with chronic obstructive pulmonary disease: a population-based cohort study. Br J Clin Pharmacol. 2016;81 (1):161-70. doi: 10.1111/bcp.12762. PubMed PMID:26337922 PubMed Central PMC4693564.
  5. Vozoris, NT, Stephenson, AL. Benzodiazepine drug use and adverse respiratory outcomes among older adults with COPD. Eur. Respir. J. 2015;45 (2):566-7. doi: 10.1183/09031936.00172714. PubMed PMID:25653272 .
  6. Vozoris, NT, O'donnell, DE. Smoking, activity level and exercise test outcomes in a young population sample without cardiopulmonary disease. J Sports Med Phys Fitness. ;55 (7-8):787-96. . PubMed PMID:25611081 .
  7. Vozoris, NT. Response to Ekström et al regarding low-dose opioids in advanced chronic obstructive pulmonary disease. Evid Based Med. 2015;20 (1):40. doi: 10.1136/ebmed-2014-110141. PubMed PMID:25564657 .
  8. Vozoris, NT. Do benzodiazepines contribute to respiratory problems?. Expert Rev Respir Med. 2014;8 (6):661-3. doi: 10.1586/17476348.2014.957186. PubMed PMID:25193249 .
  9. Vozoris, NT. Insomnia symptom frequency and hypertension risk: a population-based study. J Clin Psychiatry. 2014;75 (6):616-23. doi: 10.4088/JCP.13m08818. PubMed PMID:25004185 .
  10. Vozoris, NT, Seemangal, J, Batt, J. Prevalence, screening and treatment of latent tuberculosis among oral corticosteroid recipients. Eur. Respir. J. 2014;44 (5):1373-5. doi: 10.1183/09031936.00076714. PubMed PMID:24969656 .
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Affiliations & Other Activities

1. Staff Respirologist and Clinician Investigator, Division of Respirology, Department of Medicine, St. Michael’s Hospital

2. Assistant Professor, Division of Respirology, Department of Medicine, University of Toronto