Publications

Publications (refereed articles) (published)

1. Crema MD, Guermazi A, Sayre EC, Roemer FW, Wong H, Thorne A, Singer J, Esdaile JM, Marra MD, Kopec JA, Nicolaou S, Cibere J. The association of magnetic resonance imaging (MRI)-detected structural pathology of the knee with crepitus in a population-based cohort with knee pain: the MoDEKO study. Osteoarthritis Cartilage 2011;19(12):1429-32

2. Li LC, Sayre EC, Kopec JA, Esdaile JM, Bar S, Cibere J. Quality of non-pharmacological care for people with osteoarthritis in the community. J Rheumatol 2011;38(10):2230-7

3. Ip S, Sayre EC, Guermazi A, Nicolaou S, Wong H, Thorne A, Singer J, Kopec JA, Esdaile JM, Cibere J. Frequency of Bone Marrow Lesions and Association with Pain Severity: Results from a Population-Based Symptomatic Knee Cohort. J Rheumatol 2011;38(6):1079-85

4. Cibere J, Sayre EC, Guermazi A, Nicolaou S, Kopec JA, Esdaile JM, Thorne A, Singer J, Wong H. Natural history of cartilage damage and osteoarthritis progression on magnetic resonance imaging in a population-based cohort with knee pain. Osteoarthritis Cartilage 2011;19(6):683-8

5. Rahman MM, Kopec JA, Sayre EC, Greidanus NV, Aghajanian J, Anis AH, Cibere J, Jordan JM, Badley EM. Effect of Socio-demographic Factors on Surgical Consultations and Hip or Knee Replacements among Patients with Osteoarthritis in British Columbia, Canada. J Rheumatol 2011;38(3):503-9

6. Kopec JA, Fines P, Manuel DG, Buckeridge D, Flanagan WM, Oderkirk J, Abrahamowicz M, Harper S, Sharif B, Okhmatovskaia A, Sayre EC, Rahman MM, Wolfson MC. Validation of Population-Based Disease Simulation Models: A Review of Concepts and Methods. BMC Public Health 2010;10:710

7. Sayre EC, Jordan JM, Cibere J, Murphy L, Schwartz TA, Helmick CG, Renner JB, Rahman MM, Aghajanian J, Kang W, Badley EM, Kopec JA. Quantifying the association of radiographic osteoarthritis in knee or hip joints with other knees or hips: the Johnston County Osteoarthritis Project. J Rheumatol 2010;37(6):1260-5

8. Sayre EC, Li LC, Kopec JA, Esdaile JM, Bar S, Cibere J. The effect of disease site (knee, hip, hand, foot, lower back or neck) on employment reduction due to osteoarthritis. PLoS One 2010;5(5):e10470

9. Li LC, Hurkmans EJ, Sayre EC, Vliet Vlieland T. Continuing professional development is associated with increasing physical therapists’ roles in arthritis management in Canada and the Netherlands. Phys Ther 2010;90(4):629-42

10. Kopec JA, Sayre EC, Flanagan WM, Fines P, Cibere J, Rahman MM, Bansback NJ, Anis AH, Jordan JM, Sobolev B, Aghajanian J, Kang W, Greidanus NV, Garbuz DS, Hawker GA, Badley EM. Development of a population-based microsimulation model of osteoarthritis in Canada. Osteoarthritis Cartilage 2010;18(3):303-11

11. Li LC, Westby MD, Sutton E, Thompson M, Sayre EC, Casimiro L. Canadian physiotherapists' views on certification, specialization, extended role practice, and entry-level training in rheumatology. BMC Health Serv Res 2009;9:88

12. Li LC, Moja L, Romero A, Sayre EC, Grimshaw JM. Nonrandomized quality improvement intervention trials might overstate the strength of causal inference of their findings. J Clin Epidemiol 2009;62(9):959-66

13. Sayre EC, Bunting PS, Kopec JA. Reliability of self-report versus chart-based prostate cancer, PSA, DRE and urinary symptoms. Can J Urol 2009;16:4463-71

14. Kopec JA, Sayre EC. ROC area discrimination (ROCAD) curve: a new method of evaluating the discriminating ability of ordinal scales. J Clin Epidemiol 2008;61:997-1003

15. Kopec JA, Rahman MM, Sayre EC, Cibere J, Flanagan WM, Aghajanian J, Anis AH, Jordan JM, Badley EM. Trends in physician-diagnosed osteoarthritis incidence in an administrative database in British Columbia, Canada, 1996-1997 through 2003-2004. Arthritis Rheum 2008;59:929-34

16. Kopec JA, Badii M, McKenna M, Lima VD, Sayre EC, Dvorak M. Computerized adaptive testing in back pain: validation of the CAT-5D-QOL. Spine 2008;33:1384-90

17. Jackson ML, Nirmalan PV, Sayre EC, Bassett K. Contrast sensitivity and visual hallucinations in patients referred to a low vision rehabilitation clinic. Br J Ophthalmol 2007;91:296-8

18. Kopec JA, Rahman MM, Berthelot JM, Le Petit C, Aghajanian J, Sayre EC, Cibere J, Anis AH, Badley EM. Descriptive Epidemiology of Osteoarthritis in British Columbia, Canada. J Rheumatol 2007;34:386-93

19. Garbuz DS, Xu M, Sayre EC. Patients' outcome after total hip arthroplasty: a comparison between the Western Ontario and McMaster Universities index and the Oxford 12-item hip score. J Arthroplasty 2006;21:998-1004

20. Kopec JA, Sayre EC, Davis AM, Badley EM, Abrahamowicz M, Sherlock L, Williams JI, Anis AH, Esdaile JM. Assessment of health-related quality of life in arthritis: conceptualization and development of five item banks using item response theory. Health Qual Life Outcomes 2006;4:33

21. Kopec JA, Sayre EC. Stressful experiences in childhood and chronic back pain in the general population. Clin J Pain 2005;21:478-83

22. Kopec JA, Goel V, Bunting PS, Neuman J, Sayre EC, Warde P, Levers P, Fleshner N. Screening with prostate specific antigen and metastatic prostate cancer risk: a population based case-control study. J Urol 2005;174:495-9; discussion 499

23. Kopec JA, Sayre EC. Work-related psychosocial factors and chronic pain: a prospective cohort study in Canadian workers. J Occup Environ Med 2004;46:1263-71

24. Kopec JA, Sayre EC. Traumatic experiences in childhood and the risk of arthritis: a prospective cohort study. Can J Public Health 2004;95:361-5

25. Kopec JA, Sayre EC, Esdaile JM. Predictors of back pain in a general population cohort. Spine 2004;29:70-7; discussion 77-8

Publications (refereed articles) (submitted)

Not listed.

Abstracts (published/accepted)

26. Kopec JA, Sayre EC, Flanagan WM, Fines P, Nadeau C, Okhmatovskaya A, Wolfson MC. Aging, Obesity, and Health Status: Projections for Canada from the Population Health Model. 11th Annual International Conference on Health Economics, Management & Policy, Athens, Greece, June 25-28, 2012

27. Ezzat AM, Cibere J, Koehoorn M, Sayre EC, Li LC. Measuring Occupational Physical Load to the Knee: An Agreement Analysis. Canadian Physiotherapy Association (CPA) Congress 2012, Saskatoon, SK, Canada, May 24-27, 2012

28. Cibere J, Sayre EC, Guermazi A, Nicolaou S, Esdaile JM, Kopec JA, Singer J, Thorne A, Wong H. Predicting OA progression: Results from the Vancouver Knee Osteoarthritis Progression Study. Osteoarthritis Research Society International (OARSI) 2012 World Congress on Osteoarthritis, Barcelona, Spain, April 26-29, 2012

29. Crema MD, Sayre EC, Roemer FW, Wong H, Thorne A, Singer J, Esdaile JM, Kopec JA, Nicolaou S, Guermazi A, Cibere J. The association of MRI-detected subchondral bone marrow sclerosis with cartilage loss in a cohort of subjects with knee pain. Osteoarthritis Research Society International (OARSI) 2012 World Congress on Osteoarthritis, Barcelona, Spain, April 26-29, 2012

30. Ezzat AM, Cibere J, Koehoorn M, Sayre EC, Li LC. Measuring Occupational Physical Load to the Knee: An Agreement Analysis. Osteoarthritis Research Society International (OARSI) 2012 World Congress on Osteoarthritis, Barcelona, Spain, April 26-29, 2012

31. Ha N, Bourdon S, Sayre EC, Poole AR, Thorne A, Wong H, Singer J, Kopec JA, Esdaile JM, Guermazi A, Savvakis N, Cibere J. A new sandwich biomarker assay for cartilage type II collagen can discriminate between no osteoarthritis (OA), pre-radiographic and radiographic knee OA in human urine. Osteoarthritis Research Society International (OARSI) 2012 World Congress on Osteoarthritis, Barcelona, Spain, April 26-29, 2012

32. Hunt MA, Pollock CL, Kraus VB, Saxne T, Peters S, Huebner JL, Sayre EC, Cibere J. Biomarkers of cartilage degradation and synthesis relevant to knee osteoarthritis: Relationships with dynamic knee joint load and changes following exercise. Osteoarthritis Research Society International (OARSI) 2012 World Congress on Osteoarthritis, Barcelona, Spain, April 26-29, 2012

33. Chin L, Sayre EC, Wong H, Thorne A, Singer J, Guermazi A, Esdaile JM, Nicolaou S, Kopec JA, Cibere J. Predictors of Reduced Leisure Activity in a Symptomatic Population-based Cohort: Results from the Knee Osteoarthritis Progression Study. 2012 Canadian Rheumatology Association Conference, Victoria, BC, Canada, March 28-31, 2012

34. McCormick N, Marra CA, Colley L, Grubisic M, Lacaille D, Sayre EC, Avina-Zubieta JA. Direct Medical Costs in Patients with Systemic Autoimmune Rheumatic Diseases. 2012 Canadian Rheumatology Association Conference, Victoria, BC, Canada, March 28-31, 2012

35. Avina-Zubieta JA, Sayre EC, Bernatsky S, Lehman AJ, Shojania K, Esdaile JM, Lacaille D. Adult Prevalence of Systemic Autoimmune Rheumatic Diseases (SARDs) in British Columbia, Canada. 2011 American College of Rheumatology ACR/AHRP Annual Scientific Meeting, Chicago, IL, USA, November 5-9, 2011

36. Feehan LM, Buie HR, Sayre EC, Boyd SK, McKay HA, Li LC. High Resolution Peripheral Quantitative Computed Tomography Bone Health Outcomes in the Metacarpal Head and Ultra-Ultra Distal Radius: A Precision Study Using Novel Scan Acquisition and Custom Semi-Automatic Contour and Evaluation Protocols. 2011 American College of Rheumatology ACR/AHRP Annual Scientific Meeting, Chicago, IL, USA, November 5-9, 2011

37. Hemmati I, Goycochea-Robbles MV, Sayre EC, Lacaille D. Comparison of the 1987 American College of Rheumatology Criteria and the 2010 American College of Rheumatology/European League Against Rheumatism Criteria in Patients with Established Rheumatoid Arthritis. 2011 American College of Rheumatology ACR/AHRP Annual Scientific Meeting, Chicago, IL, USA, November 5-9, 2011

38. Sayre EC, Kopec JA, Cibere J, Marra CA, Davis J, Esdaile JM. An analysis of daily, weekly and monthly variations in health-related quality of life. Qual Life Res 2011;Supplement:AXX. 18th Annual Conference of the International Society for Quality of Life Research, Denver, CO, USA, October 26-29, 2011

39. Liang MH, Couto MCM, Duarte CCM, Gall V, White P, Naides S, Schumacher HR, Hwang A, Holers M, Deane KD, Gupta S, Ho IC, Finckh A, Kopec JA, Sayre EC. An Internet-based Technique for the Identification of Persons with Symptoms of Polyarthritis of Less than 12 weeks. 10th Anniversary Scientific Symposium, Kirkland Scholar Program, New York, USA, September 16-17, 2011

40. Cibere J, Sayre EC, Guermazi A, Esdaile JM, Kopec J, Singer J, Thorne A, Wong H. Do physical examinations predict OA progression based on MRI? Results from the Vancouver Knee Osteoarthritis Progression Study. Osteoarthritis Research Society International (OARSI) 2011 World Congress on Osteoarthritis, San Diego, CA, USA, September 15-18, 2011

41. Kopec JA, Fines P, Manuel DG, Buckeridge DL, Flanagan WM, Oderkirk J, Abrahamowicz M, Harper S, Sharif B, Okhmatovskaia A, Sayre EC, Rahman MM, Wolfson MC. Validation of population-based disease simulation models: A review of concepts and methods. 3rd General Conference of the International Microsimulation Association, Stockholm, Sweden, June 8-10, 2011

42. Sharif B, Kopec JA, Wong H, Fines P, Flanagan WM, Sayre EC, Rahman MM, Wolfson MC, and the STAR team. Uncertainty Analysis in Population-Based Disease Simulation Models: A Practical Framework. 3rd General Conference of the International Microsimulation Association, Stockholm, Sweden, June 8-10, 2011

43. Bennett C, Manuel D, Flanagan WM, Tuna M, Okhmatovskaya A, Fines P, Sayre EC, Harper S. Reporting guidelines for modelling studies. 3rd General Conference of the International Microsimulation Association, Stockholm, Sweden, June 8-10, 2011

44. Sayre EC, Singer J, Thorne A, Wong H, Kopec JA, Esdaile JM, Guermazi A, Nicolaou S, Cibere J. Does Moderate or Severe Knee Strain Affect the Progression of Radiographic Osteoarthritis? Canadian College of Rheumatology Annual Scientific Meeting, Cancun, Mexico, February 11-15, 2011

45. Kopec JA, Sayre EC, Rahman M Md, Kang W, Fines P, Flanagan WM, Cibere J, Bansback NJ, Anis AH, Badley EM. A Simulation Model of Medication Use and Impact among Persons with Osteoarthritis in Canada. Canadian College of Rheumatology Annual Scientific Meeting, Cancun, Mexico, February 11-15, 2011

46. Sayre EC, Kopec JA, Sharif B, Flanagan WM, Fines P, Rahman M, Abrahamowicz M, Buckeridge D, Harper S, Lynch J, Manuel D, Oderkirk J, Wolfson M. Projecting the effects of a 5-point reduction in body mass index on knee or hip osteoarthritis and health-related quality of life in a closed population to 2031: a microsimulation study. 2010 American College of Rheumatology ACR/AHRP Annual Scientific Meeting, Atlanta, GA, USA, November 6-11, 2010

47. Jorge RTB, Sayre EC, Kopec JA, Cibere J, Esdaile JM, Bar S, Li LC. Factors associated with the use of physical therapy by people with hip and knee osteoarthritis. 2010 American College of Rheumatology ACR/AHRP Annual Scientific Meeting, Atlanta, GA, USA, November 6-11, 2010

48. Sharif B, Kopec JA, Wong H, Sayre EC. Projection of Prevalence of Osteoarthritis in Canada: Uncertainty analysis. Annual Scientific Conference of the Canadian Arthritis Network, Gatineau, QC, Canada, October 28-30, 2010

49. Sawatzky R, Kopec JA, Sayre EC, Zumbo BD. Do people interpret and respond to questions about their pain in a comparable manner? Qual Life Res 2010;19(suppl. 1), 32-33. London, UK, October 27-30, 2010

50. Cibere J, Baribaud F, Ma K, Sayre EC, Prestley N, Wong H, Thorne A, Singer J, Poole AR, Kopec JA, Guermazi A, Nicolaou S, Esdaile JM. Serum biomarker studies of symptomatic subjects with persistent knee pain, with and without OA, reveal significant differences from asymptomatic subjects in systemic markers of inflammation suggesting differences in innate immunity. Osteoarthr Cartilage. Osteoarthritis Research Society International (OARSI) 2010 World Congress on Osteoarthritis, Montreal, QC, Canada, September 23-26, 2010

51. Crema MD, Guermazi A, Sayre EC, Roemer FW, Marra MD, Wong H, Thorne A, Singer J, Esdaile JM, Kopec JA, Nicolaou S, Cibere J. The association of magnetic resonance imaging (MRI)-detected structural pathology of the knee with crepitus in a population-based cohort with knee pain: the MoDEKO study. Osteoarthr Cartilage. Osteoarthritis Research Society International (OARSI) 2010 World Congress on Osteoarthritis, Montreal, QC, Canada, September 23-26, 2010

52. Hasan MA, Sayre EC, Guermazi A, Nicolaou S, Esdaile JM, Kopec JA, Thorne A, Singer J, Wong H, Cibere J. The effect of physician assessed quadriceps muscle strength on subsequent progression of knee osteoarthritis (OA). Osteoarthr Cartilage. Osteoarthritis Research Society International (OARSI) 2010 World Congress on Osteoarthritis, Montreal, QC, Canada, September 23-26, 2010

53. Sayre EC, Fines P, Flanagan WM, Cibere J, Rahman MM, Aghajanian J, Kang W, Bansback NJ, Anis AH, Badley EM, Kopec JA. A Tobit model for predicting Health Utilities Index Mark 3 from osteoarthritis disease duration: a population-based study. Arthritis Rheum. 2009 American College of Rheumatology ACR/AHRP Annual Scientific Meeting, Philadelphia, PA, USA, October 16-21, 2009

54. Li LC, Sayre EC, Kopec JA, Esdaile JM, Bar S, Cibere J. Quality of non-pharmacological care for people with osteoarthritis in the community. Arthritis Rheum. 2009 American College of Rheumatology ACR/AHRP Annual Scientific Meeting, Philadelphia, PA, USA, October 16-21, 2009

55. Sayre EC, Singer J, Thorne A, Wong H, Kopec JA, Esdaile JM, Guermazi A, Nicolaou S, Cibere J. Comparing magnetic resonance imaging-based definitions of knee osteoarthritis to x-ray-based Kellgren-Lawrence grade for predicting disease severity. Osteoarthr Cartilage. Osteoarthritis Research Society International (OARSI) 2009 World Congress on Osteoarthritis, Montreal, QC, Canada, September 10-13, 2009

56. Kang W, Steininger G, Sayre EC, Doerfling P, Ratzlaff C, Esdaile J, Kopec JA. Impact of total physical activity in younger age on physical and mental health of people with osteoarthritis of the knee. Osteoarthr Cartilage. Osteoarthritis Research Society International (OARSI) 2009 World Congress on Osteoarthritis, Montreal, QC, Canada, September 10-13, 2009

57. Sayre EC, Li LC, Sawatzky R, Kopec JA, Esdaile JM, Bar S, Cibere J. The effect of disease site on employment reduction due to arthritis in a population with osteoarthritis of the knee, hip, hand, foot, lower back or neck. Qual Life Res 2009;Supplement:A-112 abstract #1270. 16th Annual Scientific Meeting of the International Society for Quality of Life Research, New Orleans, LA, USA, October 28-31, 2009

58. Sawatzky R, Kopec JA, Sayre EC, Zumbo BD. Do People Interpret and Respond to Questions about Their Emotional Wellbeing In A Comparable Manner? Qual Life Res 2009;Supplement:A-63-64 abstract #1317. 16th Annual Scientific Meeting of the International Society for Quality of Life Research, New Orleans, LA, USA, October 28-31, 2009

59. Sawatzky R, Kopec JA, Sayre EC, Zumbo BD. Item Response Theory Mixture Analysis Reveals Implications of Sample Heterogeneity With Respect To a Computerized Adaptive Test Item Bank Measuring Daily Activities. Qual Life Res 2009;Supplement:A-21 abstract #1316. 16th Annual Scientific Meeting of the International Society for Quality of Life Research, New Orleans, LA, USA, October 28-31, 2009

60. Sawatzky R, Kopec JA, Sayre EC, Zumbo BD. The use of latent variable mixture modeling to examine the extent to which people are consistent in their responses to questions about their emotional wellbeing. 9th Conference of the International Society of Quality of Life Studies, Florence, Italy, July 19-23, 2009

61. Kopec JA, Fines P, Flanagan WM, Sayre EC, Rahman M, Bansback N, Cibere J, Anis AH, Jordan JM, Badley EM. Projecting the burden of osteoarthritis in Canada using microsimulation. Ann Rheum Dis. 2009 Annual European Congress on Rheumatology (EULAR), Copenhagen Denmark, June 10-13, 2009

62. Li LC, Hurkmans EJ, Sayre EC, Vliet Vlieland TPM. Post-entry level arthritis training is associated with physical therapists taking on more roles in the management of osteoarthritis and rheumatoid arthritis: the Canadian-Dutch Arthritis Care Survey. Ann Rheum Dis 2009;68(Supplement 3):784. 2009 Annual European Congress on Rheumatology (EULAR), Copenhagen Denmark, June 10-13, 2009

63. Fines P, Kopec JA, Flanagan WM, Sayre EC, Rahman MM. Microsimulation of osteoarthritis in Canada – Case study of a chronic disease in Canada. 2nd General Conference of the International Microsimulation Association, Ottawa, ON, Canada, June 8-10, 2009

64. Sawatzky R, Kopec JA, Sayre EC, Zumbo BD. Examining the implications of sample heterogeneity with respect to a computerized adaptive test item bank for the measurement of daily activities. Eastern Canada Health Outcomes Meeting: Advances and Challenges in Using Quality of Life (QOL) and Other Patient-Reported Outcomes (PROs), Montreal, QC, Canada, June 8 & 9, 2009

65. Kang W, Sayre EC, Steininger G, Doerfling P, Ratzlaff C, Esdaile J, Kopec J. Validation of the multi-attribute health utility (MAHU) derived from a computer adaptive instrument, CAT-5D-QOL, in osteoarthritis. Value in Health 2009;12:A71-2. 14th Annual International Meeting of the International Society for Pharmacoeconomics and Outcomes Research (ISPOR), Orlando, FL, USA, May 16-20, 2009

66. Kang W, Sayre EC, Steininger G, Doerfling P, Ratzlaff C, Sawatzky R, Esdaile J, Kopec JA. Cross-sectional validity of a computer adaptive questionnaire in osteoarthritis. Mod Rheumatol. 53rd Annual General Assembly and Scientific Meeting of the Japan College of Rheumatology (JCR) / the 18th International Rheumatology Symposium, Tokyo, Japan, April 23-25, 2009

67. Fines P, Kopec JA, Flanagan WM, Sayre EC, Rahman MM. Implementing drugs in a microsimulation model for patients with osteoarthritis. Canadian Agency for Drugs and Technologies in Health 2009 Symposium, Ottawa, ON, Canada, April 5-7, 2009

68. Kang W, Sayre EC, Steininger G, Doerfling P, Ratzlaff C, Sawatzky R, Esdaile J, Kopec JA. Cross-sectional validity of a computer adaptive questionnaire in osteoarthritis. 21st Health Policy Conference of the University of British Columbia Centre for Health Services and Policy Research, Vancouver, BC, Canada, February 24-25, 2009

69. Ip S, Cibere J, Sayre EC, Guermazi A, Nicolaou S, Wong H, Thorne H, Singer J, Kopec JA, Esdaile JM. Frequency of Bone Marrow Edema in Knee Osteoarthritis and Association with Pain Severity: Results from a Population-Based Study. J Rheumatol. 2009 Canadian Rheumatology Association Conference, Delta Kananaskis, AB, Canada, February 18-21, 2009

70. Sayre EC, Jordan JM, Cibere J, Murphy L, Myers EL, Schwartz TA, Helmick CG, Rahman MM, Aghajanian J, Kang W, Badley EM, Kopec JA. Modeling the multivariate distribution of radiographic osteoarthritis in knees and hips: a population-based study in rural North Carolina. Arthritis Rheum 2008;58(Supplement 9):S242-3. 2008 American College of Rheumatology ACR/AHRP Annual Scientific Meeting, San Francisco, CA, USA, October 24-29, 2008

71. Sayre EC, Kopec JA, Marra C, Abrahamowicz M, Anis AH, Badley EM, Davis AM, Esdaile JM. Performance of the Item Response Theory Scoring of the Computerized Adaptive Test in Five Domains of Quality of Life: a Simulation Study. Qual Life Res. 15th Annual Scientific Meeting of the International Society for Quality of Life Research, Montevideo, Uruguay, October 22-25, 2008

72. Marra C, Kopec JA, Sayre EC, Grindrod K, Oteng B, Gastonguay L, Soon J, Cibere J, Esdaile JM. The PAT-5D-QOL: An Adaptive, IRT-based Questionnaire to Assess Health-Related Quality of Life in Arthritis. Qual Life Res. 15th Annual Scientific Meeting of the International Society for Quality of Life Research, Montevideo, Uruguay, October 22-25, 2008

73. Fines P, Kopec JA, Flanagan WM, Sayre EC, Rahman MM, Cibere J, Kang W, Aghajanian J, Badley EM, Bansback N, Anis AH. Building a microsimulation model to estimate health-related quality of life over the course of osteoarthritis. Qual Life Res. 15th Annual Scientific Meeting of the International Society for Quality of Life Research, Montevideo, Uruguay, October 22-25, 2008

74. Kang W, Sayre EC, Steininger G, Doerfling P, Ratzlaff C, Sawatzky R, Esdaile JM, Kopec JA. Cross-sectional validity of a computer adaptive instrument in osteoarthritis. Annual Scientific Conference of the Canadian Arthritis Network, Toronto, ON, Canada, October 16-18, 2008

75. Sawatzky R, Kopec JA, Sayre EC. Examining sample heterogeneity with respect to the measurement of self-reported health outcomes relevant to joint problems. Annual Scientific Conference of the Canadian Arthritis Network, Toronto, ON, Canada, October 16-18, 2008

76. Sayre EC, Li LC, Kopec JA, Bar S, Esdaile JM. Quantifying decline in quality of life due to disease duration in persons with pre-existing knee or hip osteoarthritis. Osteoarthr Cartilage 2008;16:S134-5. 2008 Osteoarthritis Research Society International (OARSI) 2008 World Congress on Osteoarthritis, Rome, Italy, September 18-21, 2008

77. Flanagan WM, Kopec JA, Fines P, Rahman MM, Sayre EC, Cibere J, Anis AH, Badley EM. Estimating prevalence of physician-diagnosed osteoarthritis in Canada using microsimulation. Osteoarthr Cartilage 2008;16:S153. 2008 Osteoarthritis Research Society International (OARSI) 2008 World Congress on Osteoarthritis, Rome, Italy, September 18-21, 2008

78. Sayre EC, Rahman MM, Aghajanian J, Kang W, Cibere J, Anis AH, Jordan JM, Badley EM, Kopec JA. A comparison of provincial prescription-only pharmaceutical database with self-reported usage of acetaminophen and NSAIDs according to osteoarthritis stage in British Columbia. Value in Health 2008;11:A267-8. 13th Annual International Meeting of the International Society for Pharmacoeconomics and Outcomes Research (ISPOR), Toronto, ON, Canada, May 3-7, 2008

79. Jackson M, Sayre EC, Bassett K. Selective Serotonin Reuptake Inhibitors and Visual Hallucinations in the Charles Bonnet Syndrome. Invest Ophthalmol Vis Sci 2008;ARVO program/poster 3145/D863. 2008 annual meeting of the Association for Research in Vision and Ophthalmology, Fort Lauderdale, FL, USA, April 27 to May 1, 2008

80. Kopec JA, Rahman MM, Doerfling P, Sayre EC, Cibere J, MacIntyre D, Wilson D, Liang MH, Esdaile JM. Adaptive Assessment of Health-Related Quality of Life in Persons with Hip and Knee Pain. Osteoarthr Cartilage 2007;15:C46. Annual Meeting of the OsteoArthritis Research Society International (OARSI) in Fort Lauderdale, FL, USA, December 6-9, 2007

81. Kang W, Atashband S, Aghajanian J, Bansback N, Rahman MM, Sayre EC, Cibere J, Jordan JM, Anis A, Badley EM, Kopec JA. Direct comparison of efficacy of the four major categories of drugs in the treatment of osteoarthritis. Osteoarthr Cartilage 2007;15:C155. Annual Meeting of the OsteoArthritis Research Society International (OARSI) in Fort Lauderdale, FL, USA, December 6-9, 2007

82. Fines P, Flanagan WM, Kopec JA, Rahman MM, Sayre EC, Cibere J, Badley LM. Projecting Number of Osteoarthritis Patients from 2001 to 2021 in Canada Using Microsimulation. Arthritis Rheum. 2007 American College of Rheumatology ACR/AHRP Annual Scientific Meeting. Boston, MA, USA, November 6-11, 2007

83. Rahman MM, Kopec JA, Fines P, Flanagan WM, Sayre EC, Garbuz DS, Greidanus NV, Aghajanian J, Anis AH, Cibere J, Jordan JM, Badley EM. Effect of socio-demographic factors on time to surgical consultation and hip/knee replacement surgery for osteoarthritis patients in British Columbia, Canada. Arthritis Rheum. 2007 American College of Rheumatology ACR/AHRP Annual Scientific Meeting. Boston, MA, USA, November 6-11, 2007

84. Sayre EC, Kopec JA, Abrahamowicz M, Anis AH, Badley EM, Davis AM, Esdaile JM. Modeling Multi-attribute Health Utility from Five Domain-specific IRT scores. Qual Life Res 2007;Supplement:A49. 14th Annual Scientific Meeting of the International Society for Quality of Life Research, Toronto, ON, Canada, October 10-13, 2007

85. Kang W, Atashband S, Aghajanian J, Bansback N, Rahman MM, Sayre EC, Cibere J, Jordan JM, Anis A, Badley EM, Kopec JA. Estimation of the effect of the four major categories of drugs in the treatment of osteoarthritis. Annual Scientific Conference of the Canadian Arthritis Network, Halifax, NS, Canada, October 2007

86. Marra CA, Kopec JA, Sayre EC, Colley L, Oteng B, Gastonguay L, Esdaile JM. Validity of a new adaptive quality of life measure in knee OA. Ann Rheum Dis 2007;66(Supplement 2):268. 2007 Annual European Congress on Rheumatology (EULAR), Barcelona Spain, June, 2007

87. Kopec JA, Sayre EC, Berthelot JM, Flanagan WM, Fines P, Le Petit C, Cibere J, Rahman M, Lima VD, Aghajanian J, Bansback NJ, Anis AH, Jordan JM, Sobolev B, Greidanus NV, Garbuz DS, Hawker GA, Badley EM. Development of a computer simulation model of osteoarthritis in Canada. Osteoarthr Cartilage 2006;14:S128-9. Annual Meeting of the OsteoArthritis Research Society International (OARSI), Prague, Czech Republic, December 7-10, 2006

88. Kopec JA, Rahman M, Garbuz DS, Greidanus NV, Cibere J, Sayre EC, Fines P, Flanagan WM, Aghajanian J, Bansback NJ, Anis AH, Badley EM. Epidemiology of knee and hip revision procedures following total arthroplasty for osteoarthritis in British Columbia, Canada. Osteoarthr Cartilage 2006;14:S120. Annual Meeting of the OsteoArthritis Research Society International (OARSI), Prague, Czech Republic, December 7-10, 2006

89. Kopec JA, Sayre EC, Schwartz T, Badley EM, Jordan J. Socio-demographic factors, pain, and radiographic progression of hip and knee osteoarthritis. Clinical Research Conference at the 2006 American College of Rheumatology ACR/AHRP Annual Scientific Meeting, Washington, DC, USA, November 10, 2006

90. Kopec JA, Badii M, McKenna M, Sayre EC, Lima VD, Rogers P, Dvorak MF. A comparison of adaptive and standard questionnaires in patients with back pain. Qual Life Res 2006;Supplement:Abstract 1213. 13th Annual Meeting of the International Society for Quality of Life Research, Lisbon, Portugal, October 10-14, 2006

91. Kopec JA, Rahman M, Le Petit C, Berthelot J-M, Aghajanian J, Sayre EC, Cibere J, Anis AH, Badley EM. Incidence of osteoarthritis in British Columbia, Canada, 1995-2001. J Rheumatol 2006;33:399. Annual Meeting of the Canadian Rheumatology Association, Acapulco, Mexico, February 17-20, 2006

92. Doerfling P, Kopec JA, Liang MH, MacIntyre D, Wilson D, Combes V, Sayre EC, Esdaile JM. Participation rates in an internet-based study of physical activity and osteoarthritis. J Rheumatol 2006;33:395-6. Annual Meeting of the Canadian Rheumatology Association, Acapulco, Mexico, February 17-20, 2006

93. Kopec JA, Pouchot J, Dias Lima V, Sayre EC, Al-Harthy F, Marra C, Anis AH, Chalmers A, Esdaile JM. Validation of an adaptive measure of health-related quality of life in rheumatoid arthritis. Qual Life Res 2005;14:2080. 12th Annual Meeting of the International Society for Quality of Life Research, San Francisco, CA, USA, October 19-22, 2005

94. Cibere J, Greidanus N, Garbuz D, Doerfling P, Sayre EC, Esdaile JM, Kopec JA. Intra- and interrater reliability of the Global Radiographic Score 10 (GRS-10) in surgical patients with osteoarthritis (OA). J Rheumatol 2005;32:1398. Annual Meeting of the Canadian Rheumatology Association, Montreal, QC, Canada, March 2005

95. Pouchot J, Kopec JA, Latteier J, Sayre EC, Al-Harthy F, Garbuz G, Greidanus N, Anis A, Esdaile JM. Validity of a new adaptive measure of health-related quality of life in arthritis. Qual Life Res 2004;13:1590. 11th Annual Meeting of the International Society for Quality of Life Research, Hong Kong, October 16-19, 2004

96. Kopec JA, Goel V, Bunting PS, Newman J, Sayre EC, Warde P, Levers P, Fleshner N. Screening with prostate specific antigen and metastatic prostate cancer risk: a population-based case-control study. J Clin Oncol 2004;22(Supplement S):419S. Annual Meeting of the American Society of Clinical Oncology, New Orleans, LA, USA, June 5-8, 2004

97. Kopec JA, Sayre EC, Abrahamowicz M, Anis AH, Badley EM, Davis AM, Williams JI, Esdaile JM. Integrating irt- and utility-based assessment of health: overview of methodology. Qual Life Res 2003;12:826. 10th Annual Meeting of the International Society for Quality of Life Research, Prague, Czech Republic, Nov 12-15, 2003

98. Sayre EC, Kopec JA, Abrahamowicz M, Anis AH, Badley EM, Davis AM, Williams JI, Esdaile JM. A comparison of additive and multiplicative models for a new preference-based questionnaire in patients with musculoskeletal conditions. Qual Life Res 2003;12:834. 10th Annual Meeting of the International Society for Quality of Life Research, Prague, Czech Republic, Nov 12-15, 2003

99. Kopec JA. Abrahamowicz M, Badley EM, Davis AM, Williams JI, Sayre EC, Esdaile JM. Assessing musculoskeletal health: development of a new measurement tool. Qual Life Res 2002;11:649. 9th Annual Meeting of the International Society for Quality of Life Research, Orlando, October 30 - November 2, 2002

100. Kopec JA. Abrahamowicz M, Badley EM, Davis AM, Williams JI, Sayre EC, Esdaile JM. Adaptive assessment of musculoskeletal health: A novel approach based on item response theory. Arthritis Rheum 2002;46(suppl):S117. 66th Annual Scientific Meeting of the American College of Rheumatology, New Orleans, October 26-29, 2002

101. Kopec JA, Sayre EC, Esdaile JM. Is work stress associated with subsequent back pain? A prospective cohort study. 65th Annual Scientific Meeting of the American College of Rheumatology, San Francisco, November 10-15, 2001

102. Paddock K, Kozak J, Sayre EC. How do care outcomes and service patterns relate to behavioral problems? Part II: Health services. Paper 17th World Congress of the International Association of Gerontology, Vancouver, BC, July, 2001

103. Kopec JA, Sayre EC, Esdaile JM, Liang MH. Predictors of back pain: A prospective cohort study. Congress of Epidemiology 2001, Toronto, June 13-16, 2001

104. Paddock K, Kozak J, Sayre EC. How do care outcomes and service patterns relate to behavioral problems? Paper annual meeting of the Canadian Association on Gerontology, Edmonton, AB, October, 2000

Research Reports

105. Sayre EC. Variable-Weighted Ultrametric Optimization for Mixed-Type Data: Continuous, Ordinal, Nominal, Binary Symmetric and Binary Asymmetric. Doctor of Philosophy (PhD) dissertation, Department of Statistics and Actuarial Science, Simon Fraser University, August, 2009 (Full text and abstract: http://ir.lib.sfu.ca/handle/1892/11261; the thesis PDF at the bottom of that page is several MB and your browser may have trouble opening it; please right-click ETD4622.pdf and select "Save Target As...", then open the file with Adobe Reader.)

106. Li LC, Kopec JA, Cibere J, Sayre EC, Esdaile J. British Columbia Osteoarthritis Survey. Final Report to the British Columbia Ministry of Health, April, 2008

107. Kopec JA, Badii M, McKenna M, Sayre EC, Dias Lima V, Rogers P, Dvorak M. Measuring Health Outcomes: An Empirical Comparison of Adaptive and Standard Questionnaires; Final Report to the Workers Compensation Board of British Columbia, June, 2005

108. Sayre EC. An Approach to Analyzing Case-Control Screening Data with an Application to Digital Rectal Exam and Metastatic Prostate Cancer. Master of Science thesis, Department of Statistics and Actuarial Science, Simon Fraser University, April, 2005 (Full text and abstract: http://ir.lib.sfu.ca/handle/1892/739; the thesis PDF at the bottom of that page is several MB and your browser may have trouble opening it; please right-click EricSayre_MSc_thesis.pdf and select "Save Target As...", then open the file with Adobe Reader.)

109. Sayre EC, Langlet E. Proposal for Multiple 2B Forms. Internal Memo, Statistics Canada, 1997

Presentations as guest speaker

110. Kopec JA, Sayre EC. Development of CAT-5D. PROMIS Steering Committee Meeting in Seattle, WA, USA, June 4-5, 2007

111. Sayre EC, Kopec JA. A Linear Mixed Model for Multi-dimensional Health Utility as a Function of 5 IRT Scores in the Context of Adaptive Assessment. semi-annual meeting of the Tooling Up for Early Osteoarthritis (TUFEOA) Research Team, Toronto, ON, Canada, February 19, 2007

112. Kopec JA, Doerfling P, Sayre EC, De Vera M. Physical Activity and Joint Health. Presented at Bone Health Group Journal Club, Vancouver General Hospital, Vancouver, BC, Canada, November 28, 2005

113. Kopec JA, Sayre EC. Questionnaires, Computers, and the Internet. Arthritis Research Centre of Canada Research Rounds, Vancouver, BC, Canada, July 26, 2004

114. Sayre EC, Grenon L, Croal J. Bootmac8.SAS for variance estimation with complex survey data. Statistics Canada Regional Office, Vancouver, BC, Canada, May 26, 2003

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