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
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.