Self-efficacy expectations predict survival for patients with chronic obstructive pulmonary disease.
The validity of self-efficacy expectations as predictors of mortality was evaluated for 119 patients with chronic obstructive pulmonary disease (COPD). Patients completed 4 physiological measures that represent common clinical indicators of disease severity: (a) forced expiratory volume in 1 s (FEV1.0), (b) arterial blood gas measurement of resting partial pressure of oxygen (PaO2), (c) single-breath diffusing capacity (DLCO), and (d) maximum oxygen uptake (VO2max) during exercise. In addition, self-reported self-efficacy expectation for walking on a treadmill was measured. Self-efficacy was a significant univariate predictor of 5-year survival. However, when controlling for FEV1.0 in multivariate survival analysis, self-efficacy had only a marginal effect. We concluded that simple self-report scales could provide significant information about health status.
Kaplan
R M
RM
Department of Family and Preventive Medicine, University of California, San Diego.
Ries
A L
AL
Prewitt
L M
LM
Eakin
E
E
D000203:Activities of Daily Living / Q000523:psychology*; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000401:mortality* / Q000523:psychology; D008297:Male; D015999:Multivariate Analysis; D011379:Prognosis; D012129:Respiratory Function Tests; D012647:Self-Assessment; D015996:Survival Rate