Biomaterial Database

Examining diagnostic tests: an evidence-based perspective. 2001

J M Fritz, and R S Wainner

Department of Physical Therapy, University of Pittsburgh, PA 15260, USA. jfritz@pitt.edu

Diagnosis is an important aspect of physical therapist practice. Selecting tests that will provide the most accurate information and evaluating the results appropriately are important clinical skills. Most of the discussion in physical therapy to date has centered on defining diagnosis, with considerably less attention paid to elucidating the diagnostic process. Determining the best diagnostic tests for use in clinical situations requires an ability to appraise evidence in the literature that describes the accuracy and interpretation of the results of testing. Important issues for judging studies of diagnostic tests are not widely disseminated or adhered to in the literature. Lack of awareness of these issues may lead to misinterpretation of the results. The application of evidence to clinical practice also requires an understanding of evidence and its use in decision making. The purpose of this article is to present an evidence-based perspective on the diagnostic process in physical therapy. Issues relevant to the appraisal of evidence regarding diagnostic tests and integration of the evidence into patient management are presented.

UI	MeSH Term	Description	Entries
D009140	Musculoskeletal Diseases	Diseases of the muscles and their associated ligaments and other connective tissue and of the bones and cartilage viewed collectively.	Orthopedic Disorders,Musculoskeletal Disease,Orthopedic Disorder
D003657	Decision Making	The process of making a selective intellectual judgment when presented with several complex alternatives consisting of several variables, and usually defining a course of action or an idea.	Credit Assignment,Assignment, Credit,Assignments, Credit,Credit Assignments
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012680	Sensitivity and Specificity	Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)	Specificity,Sensitivity,Specificity and Sensitivity
D013223	Statistics as Topic	Works about the science and art of collecting, summarizing, and analyzing data that are subject to random variation.	Area Analysis,Estimation Technics,Estimation Techniques,Indirect Estimation Technics,Indirect Estimation Techniques,Multiple Classification Analysis,Service Statistics,Statistical Study,Statistics, Service,Tables and Charts as Topic,Analyses, Area,Analyses, Multiple Classification,Area Analyses,Classification Analyses, Multiple,Classification Analysis, Multiple,Estimation Technic, Indirect,Estimation Technics, Indirect,Estimation Technique,Estimation Technique, Indirect,Estimation Techniques, Indirect,Indirect Estimation Technic,Indirect Estimation Technique,Multiple Classification Analyses,Statistical Studies,Studies, Statistical,Study, Statistical,Technic, Indirect Estimation,Technics, Estimation,Technics, Indirect Estimation,Technique, Estimation,Technique, Indirect Estimation,Techniques, Estimation,Techniques, Indirect Estimation
D019317	Evidence-Based Medicine	An approach of practicing medicine with the goal to improve and evaluate patient care. It requires the judicious integration of best research evidence with the patient's values to make decisions about medical care. This method is to help physicians make proper diagnosis, devise best testing plan, choose best treatment and methods of disease prevention, as well as develop guidelines for large groups of patients with the same disease. (from JAMA 296 (9), 2006)	Medicine, Evidence-Based,Evidence Based Medicine,Medicine, Evidence Based
D019937	Diagnostic Techniques and Procedures	Methods, procedures, and tests performed to diagnose disease, disordered function, or disability.	Diagnostic Testing,Diagnostic Technics and Procedures,Technics and Procedures, Diagnostic,Techniques and Procedures, Diagnostic,Testing, Diagnostic
D026741	Physical Therapy Modalities	Therapeutic modalities frequently used in PHYSICAL THERAPY SPECIALTY by PHYSICAL THERAPISTS or physiotherapists to promote, maintain, or restore the physical and physiological well-being of an individual.	Physical Therapy,Physiotherapy (Techniques),Group Physiotherapy,Neurological Physiotherapy,Neurophysiotherapy,Physical Therapy Techniques,Group Physiotherapies,Modalities, Physical Therapy,Modality, Physical Therapy,Physical Therapies,Physical Therapy Modality,Physical Therapy Technique,Physiotherapies (Techniques),Physiotherapies, Group,Physiotherapy, Group,Physiotherapy, Neurological,Techniques, Physical Therapy,Therapy, Physical