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Associate Professor and Director, Graduate Studies, Department of Clinical Sciences and Administration, College of Pharmacy, University of Houston, Texas Medical Center, Houston, TX
Clinical Pharmacist, Department of Pharmacy, Seton Medical Center, Austin, TX
Graduate Student, Department of Pharmacy Practice and Administration, College of Pharmacy, The Ohio State University, Columbus, OH
Graduate Student, Department of Clinical Sciences and Administration, College of Pharmacy, University of Houston, Texas Medical Center
Reprints: Dr. Sansgiry, Department of Clinical Sciences and Administration, College of Pharmacy, University of Houston, Texas Medical Center, 1441 Moursund St., Houston, TX 77030, fax 713/795-8383, ssansgiry{at}uh.ed
BACKGROUND:Health-related quality of life (HRQL) is an important outcome, especially for chronic diseases with no cure such as cardiovascular diseases.
OBJECTIVE: To investigate the comparability of 2 HRQL instruments, the Short Form-12 (SF-12) survey and the MacNew Heart Disease HRQL survey (MacNew) in patients with cardiac diseases.
METHODS: A nonexperimental cross-sectional study was conducted in a
lipid clinic in the Houston metropolitan area. Patients with a prior cardiac
disease were requested to complete the SF-12 and the MacNew scales while
waiting to see the physician during their regular clinic visit. Cronbach's
values were estimated to evaluate internal consistency. Spearman's
correlation was performed to examine the correlation between the SF-12 and the
MacNew scale domains.
RESULTS: A total of 118 patients were enrolled in this study. High
Cronbach's
(from 0.89 to 0.94) were observed from all component scores
in the MacNew scales. Physical component scores from the SF-12 and from the
MacNew were highly correlated (r = 0.74; p < 0.001), as were the mental
component score from the SF-12 and the emotional component score from the
MacNew (r = 0.68; p < 0.001).
CONCLUSIONS: The SF-12 and the MacNew appeared to be strongly correlated to each other for predicting a patient's HRQL in patients with a cardiac disease.
Key Words: heart diseases, MacNew Scale, quality of life, Short Form-12 scale
Published Online, January 22, 2008. www.theannals.com, DOI 10.1345/aph.1K092