Research Topics
| P W StratfordSummaryAffiliation: McMaster University Country: Canada Publications
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Detail Information
Publications
When minimal detectable change exceeds a diagnostic test-based threshold change value for an outcome measure: resolving the conflictPaul W Stratford
School of Rehabilitation Science and Department of Clinical Epidemiology and Biostatistics, McMaster University, West Hamilton, Ontario, Canada
Phys Ther 92:1338-47. 2012..We conclude this perspective with suggestions for researchers concerning essential information to include when reporting threshold estimates obtained from reliability-based and diagnostic test-based studies of outcome measures...
Minimizing the source of nociception and its concurrent effect on sensory hypersensitivity: an exploratory study in chronic whiplash patientsGeoff M Schneider
Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
BMC Musculoskelet Disord 11:29. 2010..The purpose of the study was to determine if there is a change in measures indicative of sensory hypersensitivity in patients with chronic WAD grade II following a medial branch block (MBB) procedure in the cervical spine...
Modeling early recovery of physical function following hip and knee arthroplastyDeborah M Kennedy
School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
BMC Musculoskelet Disord 7:100. 2006..The purpose of this study was to model early recovery of physical function in patients undergoing total hip (THA) and knee (TKA) arthroplasty, using physical performance and self-report measures...
Assessing stability and change of four performance measures: a longitudinal study evaluating outcome following total hip and knee arthroplastyDeborah M Kennedy
School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
BMC Musculoskelet Disord 6:3. 2005....
Inter-rater agreement and reliability of the COSMIN (COnsensus-based Standards for the selection of health status Measurement Instruments) checklistLidwine B Mokkink
Department of Epidemiology and Biostatistics and the EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands
BMC Med Res Methodol 10:82. 2010..The aim of this study is to determine the inter-rater agreement and reliability of each item score of the COSMIN checklist (n = 114)...
The COSMIN checklist for evaluating the methodological quality of studies on measurement properties: a clarification of its contentLidwine B Mokkink
Department of Epidemiology and Biostatistics and the EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands
BMC Med Res Methodol 10:22. 2010..In this paper, we explain our choices for the design requirements and preferred statistical methods for which no evidence is available in the literature or on which the Delphi panel members had substantial discussion...
Quantifying self-report measures' overestimation of mobility scores postarthroplastyPaul W Stratford
School of Rehabilitation Science, McMaster University, Hamilton, Ontario, Canada
Phys Ther 90:1288-96. 2010..Self-reports of function may systematically overestimate the ability of patients to move around postarthroplasty...
Validating self-report measures of pain and function in patients undergoing hip or knee arthroplastyPaul W Stratford
Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada
Physiother Can 61:189-94; discussion 195-6. 2009..To investigate the factorial and construct validity of a four-item pain intensity scale, the P4, in patients awaiting primary total hip or knee arthroplasty secondary to osteoarthritis...
Performance measures provide assessments of pain and function in people with advanced osteoarthritis of the hip or kneePaul W Stratford
School of Rehabilitation Science, Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada
Phys Ther 86:1489-96. 2006..The purpose of this study was to examine the factorial validity of performance-specific assessments of pain and function...
Measurement properties of the WOMAC LK 3.1 pain scaleP W Stratford
Department of Clinical Epidemiology and Biostatistics, School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
Osteoarthritis Cartilage 15:266-72. 2007..Our purpose was to estimate internal consistency, factorial validity, test-retest reliability, and the standard error of measurement (SEM) of the WOMAC LK 3.1 pain scale...
Health status measures: strategies and analytic methods for assessing change scoresP W Stratford
School of Occupational Therapy and Physiotherapy, McMaster University, Hamilton, Ontario, Canada
Phys Ther 76:1109-23. 1996..In summary, the article suggests that some designs and analytic strategies are more adept than others at assessing change and that these methods should be considered when planning sensitivity-to-change studies...
Performance measures were necessary to obtain a complete picture of osteoarthritic patientsPaul W Stratford
Clinical Epidemiology and Biostatistics, Faculty of Health Sciences, IAHS School of Rehabilitation Science, McMaster University, Hamilton, Ontario L8N 1C7, Canada
J Clin Epidemiol 59:160-7. 2006....
New study design evaluated the validity of measures to assess change after hip or knee arthroplastyPaul W Stratford
School of Rehabilitation Science, Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada
J Clin Epidemiol 62:347-52. 2009..We propose a study design to evaluate the ability of measures to assess physical function relatively independent of pain. We illustrate the design using data from patients scheduled for total hip (THA) or knee (TKA) arthroplasty...
Assessing sensitivity to change: choosing the appropriate change coefficientPaul W Stratford
School of Rehabilitation Science, McMaster University, Hamilton, ON, L8S 1C7 Canada
Health Qual Life Outcomes 3:23. 2005..Once the population's change characteristic is identified, the choice of change coefficient should be clear...
The relationship between self-report and performance-related measures: questioning the content validity of timed testsPaul W Stratford
McMaster University, Hamilton, Ontario, Canada
Arthritis Rheum 49:535-40. 2003..To examine the determinants of the modest correlation between self-report and performance-related measures in patients with osteoarthritis of the hip or knee...
Sensitivity to change of the Roland-Morris Back Pain Questionnaire: part 1P W Stratford
School of Rehabilitation Science, Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada
Phys Ther 78:1186-96. 1998..The study also investigated whether the estimate of change was dependent on patients' initial scores. Subjects and..
Condition-specific Western Ontario McMaster Osteoarthritis Index was not superior to region-specific Lower Extremity Functional Scale at detecting changePaul W Stratford
School of Rehabilitation Science, McMaster University, 1400 Main St West, Hamilton, Ontario L8S 1C, Canada
J Clin Epidemiol 57:1025-32. 2004....
Does parallel item content on WOMAC's pain and function subscales limit its ability to detect change in functional status?Paul W Stratford
School of Rehabilitation Science, Department of Clinical Epidemiology and Biostatistics, McMaster University, 1400 Main Street West 4th Floor, Hamilton, ON, Canada, L8S 1C7
BMC Musculoskelet Disord 5:17. 2004..We hypothesized that the duplication of some items on the WOMAC's pain and function subscales contributed to this shortcoming...
Comparing 2 versions of the Chedoke Arm and Hand Activity Inventory with the Action Research Arm TestSusan R Barreca
McMaster University, Hamilton, Ontario, Canada
Phys Ther 86:245-53. 2006....
Measurement properties of the RM-18. A modified version of the Roland-Morris Disability ScaleP W Stratford
School of Rehabilitation Science, McMaster University, Hamilton, Ontario, Canada
Spine (Phila Pa 1976) 22:2416-21. 1997..In either case, its measurement properties are equal to those of the 24-item Roland-Morris Questionnaire...
Using hierarchical linear modeling to explore predictors of pain after total hip and knee arthroplasty as a consequence of osteoarthritisAshley Halket
School of Rehabilitation Science, McMaster University, Hamilton, Ontario, Canada
J Arthroplasty 25:254-62. 2010....
Interrater reliability of APACHE II scores for medical-surgical intensive care patients: a prospective blinded studyMichelle E Kho
Health Research Methodology Program, at McMaster University, Hamilton, Ontario, Canada
Am J Crit Care 16:378-83. 2007..Despite widespread use of the Acute Physiology and Chronic Health Evaluation II (APACHE II), its interrater reliability has not been well studied...
Recovery after hip fracture: what can we learn from the Canadian Occupational Performance Measure?Mary Edwards
School of Rehabilitation Science, Faculty of Health Sciences, McMaster University, IAHS 403, 1400 Main Street West, Hamilton, Ontario L8S 1C7, Canada
Am J Occup Ther 61:335-44. 2007..Because the COPM is sensitive to change in function in patients recovering from hip fracture, COPM use with this population is desirable and advisable...
Preoperative function and gender predict pattern of functional recovery after hip and knee arthroplastyDeborah M Kennedy
Department of Rehabilitation, Centre for Studies of Physical Function, Orthopaedic and Arthritic Institute of Sunnybrook and Women's College Health Sciences Centre, Toronto, Ontario, Canada
J Arthroplasty 21:559-66. 2006..Thereafter, men and women had similar rates of improvement. Preoperative score was a significant predictor (P < or= .001) in all models. Patients' and surgeons' expectations of outcome need to take preoperative function into account...
Applying the results of self-report measures to individual patients: an example using the Roland-Morris QuestionnaireP W Stratford
School of Rehabilitation Science, McMaster University, Hamilton, Ontario, Canada
J Orthop Sports Phys Ther 29:232-9. 1999..Three patient scenarios are used to illustrate the issues raised in this paper...
Development and initial validation of the back pain functional scaleP W Stratford
School of Rehabilitation Science and Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada
Spine (Phila Pa 1976) 25:2095-102. 2000..CONCLUSIONS: The BPFS appears to have sound measurement properties, and a formal head-to-head comparison study with the RMQ is warranted...
The evaluation of change in pain intensity: a comparison of the P4 and single-item numeric pain rating scalesGregory F Spadoni
ProActive Physiotherapy Clinic, Hamilton, Ontario, Canada
J Orthop Sports Phys Ther 34:187-93. 2004..Prospective observation study...
Comparison of gender and group differences in self-report and physical performance measures in total hip and knee arthroplasty candidatesDeborah Kennedy
Centre for Studies of Physical Function, Department of Rehabilitation, Orthopaedic and Arthritic Institute, Sunnybrook and Women s College Health Sciences Centre, Toronto, ON, Canada
J Arthroplasty 17:70-7. 2002..Overall, there was low-to-moderate correlation between the self-report and physical performance measures (r = .21- .50)...
Test-retest reliability, validity, and sensitivity of the Chedoke arm and hand activity inventory: a new measure of upper-limb function for survivors of strokeSusan R Barreca
Orthopedic and Rehabilitation Services, Hamilton Health Sciences, Hamilton, ON, Canada
Arch Phys Med Rehabil 86:1616-22. 2005....
The timed up and go test for use on an inpatient orthopaedic rehabilitation wardTeresa S M Yeung
West Park Healthcare Centre, Toronto, ON, Canada
J Orthop Sports Phys Ther 38:410-7. 2008..Single-group repeated-measures study...
Simulated computerized adaptive tests for measuring functional status were efficient with good discriminant validity in patients with hip, knee, or foot/ankle impairmentsDennis L Hart
Focus On Therapeutic Outcomes, Inc, White Stone, VA 22578 2403, USA
J Clin Epidemiol 58:629-38. 2005....
Re: Grotle M, Brox JI, Vøllestad NK. Concurrent comparison of responsiveness in pain and functional status measures used for patients with low back pain. Spine 2004;29:E492-E501Paul W Stratford
Spine 30:1341-2; author reply 1342. 2005
Roland-Morris scale reliabilityDaniel L Riddle
Phys Ther 82:512-5; author reply 515-7. 2002
Assessing recovery and establishing prognosis following total knee arthroplastyDeborah M Kennedy
Holland Orthopaedic and Arthritic Centre, Sunnybrook Health Sciences Centre, 43 Wellesley St E, Toronto, Ontario, Canada M4Y 1H1
Phys Ther 88:22-32. 2008....
Simulated computerized adaptive test for patients with lumbar spine impairments was efficient and produced valid measures of functionDennis L Hart
Focus On Therapeutic Outcomes, Inc, 551 Yopps Cove Road, White Stone, VA 22578, USA
J Clin Epidemiol 59:947-56. 2006....
Comment on the comparison of test-retest reliabilities for 2-day and 2-week intervalsPaul W Stratford
J Clin Epidemiol 57:993-4; author reply 995. 2004
On "test-retest reliability and minimal detectable change on balance..." Steffen T, Seney M. Phys Ther. 2008;88:733-746Paul W Stratford
Phys Ther 88:888-90; author reply 891. 2008
Centralization: prevalence and effect on treatment outcomes using a standardized operational definition and measurement methodMark W Werneke
CentraState Medical Center, 901 West Main Street, Freehold, NJ 07728, USA
J Orthop Sports Phys Ther 38:116-25. 2008..Retrospective, observational cohort design...
Hop testing provides a reliable and valid outcome measure during rehabilitation after anterior cruciate ligament reconstructionAndrea Reid
John Owen Pavilion, University of British Columbia, Vancouver, Canada
Phys Ther 87:337-49. 2007..The purpose of this study was to investigate the reliability and longitudinal validity of data obtained from hop tests during rehabilitation after ACL reconstruction...
