Predictors of health-related quality of life after coronary artery bypass surgery.
BACKGROUND
Little is known about the determinants of health-related quality of life after coronary artery bypass surgery. We determined the predictors of overall physical and mental health status 6 months after the operation.


METHODS
We evaluated 1,973 patients enrolled in a multicenter Veterans Affairs prospective cohort study who completed preoperative and 6-month postoperative Short Form-36 (SF-36) health status surveys. Multiple linear regression was used to identify the significant independent predictors of 6-month physical and mental component summary scores from the SF-36.


RESULTS
In multivariable analyses adjusting for baseline health status, significant predictors of postoperative physical health status were a history of neurologic disease, peripheral vascular disease, chronic obstructive pulmonary disease, hypertension, current smoking, forced expiratory volume, left ventricular ejection fraction, and serum creatinine. Significant predictors of postoperative mental health status were a history of psychiatric disease, chronic obstructive pulmonary disease, current smoking, age, and New York Heart Association functional class.


CONCLUSIONS
These predictors of health-related quality of life after coronary artery bypass surgery may be useful for preoperative risk assessment and counseling of patients with regard to anticipated health status outcomes. Factors such as current smoking and psychiatric disease may be targets for interventions to improve health-related quality of life outcomes.
Rumsfeld
John S
JS
Cardiology and Health Services Research, Denver VA Medical Center, University of Colorado Health Sciences Center, Denver, Colorado 80220, USA. john.rumsfeld@med.va.gov
Ho
P Michael
PM
Magid
David J
DJ
McCarthy
Martin
M
Shroyer
A Laurie W
AL
MaWhinney
Samantha
S
Grover
Frederick L
FL
Hammermeister
Karl E
KE
D001026:Coronary Artery Bypass; D006304:Health Status; D006801:Humans; D015999:Multivariate Analysis; D011184:Postoperative Period; D011788:Quality of Life