R Z Omar

Summary

Affiliation: Imperial College
Country: UK

Publications

  1. ncbi request reprint Analysis of a cluster randomized trial with binary outcome data using a multi-level model
    R Z Omar
    Department of Epidemiology and Public Health, Imperial College of Science, Technology and Medicine, Du Cane Road, London W12 ONN, U K
    Stat Med 19:2675-88. 2000
  2. pmc Importance of emergency identification schemes
    L Morton
    Imperial College School of Science, Technology and Medicine, National Heart and Lung Institute, Department of Cardiothoracic Surgery, Hammersmith Hospital, London, UK
    Emerg Med J 19:584-6. 2002
  3. ncbi request reprint Risks of fracture of Björk-Shiley 60 degree convexo-concave prosthetic heart valves: long-term cohort follow up in the UK, Netherlands and USA
    W J Blot
    International Epidemiology Institute, Rockville, MD, USA
    J Heart Valve Dis 10:202-9. 2001
  4. ncbi request reprint Outlet strut fracture of Björk-Shiley convexo-concave valves: can valve-manufacturing characteristics explain the risk?
    R Z Omar
    Department of Cardiac Surgery, Imperial College of Science, Technology and Medicine, Hammersmith Hospital, Du Cane Rd, London, W12 0NN, United Kingdom
    J Thorac Cardiovasc Surg 121:1143-9. 2001
  5. pmc Outlet strut fracture of Björk-Shiley convexo concave heart valves: the UK cohort study
    R Z Omar
    Department of Cardiac Surgery, Imperial College of Science, Technology and Medicine, Hammersmith Hospital, Du Cane Road, London W12 0NN, UK
    Heart 86:57-62. 2001

Collaborators

Detail Information

Publications5

  1. ncbi request reprint Analysis of a cluster randomized trial with binary outcome data using a multi-level model
    R Z Omar
    Department of Epidemiology and Public Health, Imperial College of Science, Technology and Medicine, Du Cane Road, London W12 ONN, U K
    Stat Med 19:2675-88. 2000
    ..The assumption of normality of the random effects can be checked, and the models extended to investigate multiple sources of variability...
  2. pmc Importance of emergency identification schemes
    L Morton
    Imperial College School of Science, Technology and Medicine, National Heart and Lung Institute, Department of Cardiothoracic Surgery, Hammersmith Hospital, London, UK
    Emerg Med J 19:584-6. 2002
    ..These patients have been encouraged to carry information to alert staff in an emergency that they have a BSCC patient in their care and to be alert to the signs and symptoms of acute valve malfunction...
  3. ncbi request reprint Risks of fracture of Björk-Shiley 60 degree convexo-concave prosthetic heart valves: long-term cohort follow up in the UK, Netherlands and USA
    W J Blot
    International Epidemiology Institute, Rockville, MD, USA
    J Heart Valve Dis 10:202-9. 2001
    ..It also identifies a strong association between fracture risk and age, newly reveals gender-related differences, and shows that the risk of valve fracture persisted, albeit at a reduced rate, into the 1990s...
  4. ncbi request reprint Outlet strut fracture of Björk-Shiley convexo-concave valves: can valve-manufacturing characteristics explain the risk?
    R Z Omar
    Department of Cardiac Surgery, Imperial College of Science, Technology and Medicine, Hammersmith Hospital, Du Cane Rd, London, W12 0NN, United Kingdom
    J Thorac Cardiovasc Surg 121:1143-9. 2001
    ..Fractures of the outlet struts of the valves began to appear in the early 1980s and have continued to the present, but their causes are only partially understood...
  5. pmc Outlet strut fracture of Björk-Shiley convexo concave heart valves: the UK cohort study
    R Z Omar
    Department of Cardiac Surgery, Imperial College of Science, Technology and Medicine, Hammersmith Hospital, Du Cane Road, London W12 0NN, UK
    Heart 86:57-62. 2001
    ..The changing patterns of mitral and aortic valve OSF rates over time observed in this study have not been identified previously and highlight the need for continued monitoring of patients with the BSCC valve...