The left ventricular dysfunction questionnaire (LVD-36): reliability, validity, and responsiveness

Citation
Cj. O'Leary et Pw. Jones, The left ventricular dysfunction questionnaire (LVD-36): reliability, validity, and responsiveness, HEART, 83(6), 2000, pp. 634-640
Citations number
13
Categorie Soggetti
Cardiovascular & Respiratory Systems","Cardiovascular & Hematology Research
Journal title
HEART
ISSN journal
13556037 → ACNP
Volume
83
Issue
6
Year of publication
2000
Pages
634 - 640
Database
ISI
SICI code
1355-6037(200006)83:6<634:TLVDQ(>2.0.ZU;2-3
Abstract
Objective-To examine the reliability, validity, and responsiveness of a new health status measure (LVD-36) for patients with left ventricular dysfunct ion which was designed with emphasis on content validity, clarity, brevity, and ease of use. Design-At baseline, patients completed the LVD-36 and a range of measures r eflecting general health and disease severity. The LVD-36 was repeated afte r one week. After six months, it was repeated again, along with a transitio n question to measure global changes in health. Setting-Patients were recruited from the cardiology and general medical cli nics at a south west London hospital. Patients-60 patients with chronic left ventricular dysfunction. Interventions-None. Main outcome measures-Short form 36 questionnaire (SF-36), Minnesota living with heart failure questionnaire (LIhFE), Neu York Heart Association crite ria, and exercise performance and echocardiographic tests. Results-The LVD-36 showed good internal consistency (kappa = 0.95) and repe atability (r(i) = 0.95). Its scores were significantly associated with SF-3 6 mental and physical component scores (r = -0.48 and -0.75; p < 0.0001), w ith exercise capacity (r = -0.52; p < 0.0001), and with systolic shortening fraction (r = -0.27; p < 0.05). Change in the LVD-36 over six months was a ssociated with change in overall health (F = 5.7; p < 0.001). In tests of v alidity and responsiveness, the LVD-36 performed similarly to or marginally better than the LIhFE. Conclusions-The LVD-36 showed a high level of reliability and validity, and appears to measure changes in health. It provides a short, simple, valid, and reliable measure of health status in patients with left ventricular dys function.