Self-efficacy expectations predict survival for patients with chronic obstructive pulmonary disease.

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.

对119名慢性阻塞性肺疾病（COPD）患者评估了自我效能预期作为死亡率预测因子的有效性。患者完成了4项生理指标测量，这些指标代表了疾病严重程度的常见临床指标：（a）1秒用力呼气量（FEV1.0），（b）静息时氧分压（PaO2）的动脉血气测量，（c）单次呼吸弥散量（DLCO），以及（d）运动期间的最大摄氧量（VO2max）。此外，还测量了患者在跑步机上行走的自我报告的自我效能预期。自我效能是5年生存率的一个显著的单变量预测因子。然而，在多变量生存分析中控制FEV1.0时，自我效能仅有边缘效应。我们得出结论，简单的自我报告量表可以提供有关健康状况的重要信息。