Open AccessReliability and Validity of the Monitored Functional Task Evaluation (MFTE) for Patients with Chronic Obstructive Pulmonary Disease (COPD)
Author(s) -
Kenneth N. K. Fong,
Bobby Hin-Po Ng,
Kathy K.Y. Chow,
Phoebe L.C. Chan,
Annie M.H. Chin,
William N.K. Chen,
Thomas Mok
Publication year - 2001
Publication title -
hong kong journal of occupational therapy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.301
H-Index - 13
eISSN - 1876-4398
pISSN - 1569-1861
DOI - 10.1016/s1569-1861(09)70008-7
Subject(s) - copd , physical therapy , reliability (semiconductor) , medicine , activities of daily living , pulmonary disease , validity , content validity , physical medicine and rehabilitation , psychology , psychometrics , clinical psychology , power (physics) , physics , quantum mechanics
This article describes the development of a new functional measure — the Monitored Functional Task Evaluation (MFTE) — a symptom-limited evaluation that is used to measure the functional performance of an individual with chronic obstructive pulmonary disease (COPD), and to document a client's physiological changes through repeated testing. Stage I of the study included developing the content validity of the instrument. Stage II consisted of establishing the performance profile, test-retest and inter-rater reliability using a convenience sample of 27 inpatients and outpatients who had COPD. In stage III, the criterion-related and discriminative validity of the instrument was verified in a retrospective sample of 124 inpatients and day patients who had COPD. Results indicated that there was high intra- and inter-rater reliability for the total score of MFTE. Significant correlation of the MFTE was found with parameters such as Moser's Activities of Daily Living (ADL) class, COPD disability class, 6-minute walking distance, work capacity in terms the ratio of the metabolic rate associated with a given activity to the resting metabolic rate, and the fatigue dimension of the Chronic Respiratory Disease Questionnaire. In addition, prediction of group membership to Moser's ADL class revealed that 52.4% of the original grouped cases could be correctly classified by the MFTE alone. In conclusion, the MFTE is a useful measure to evaluate functional performance as well as document physiological changes in patients with moderate-to-severe COPD from both conceptual and empirical perspectives