Shim C S, Williams M H
Am J Med. 1980 Jan;68(1):11-3. doi: 10.1016/0002-9343(80)90155-2.
It is clear that accurate assessment of the severity of asthma requires a measurement of airway obstruction, such as peak expiratory flow rate. In this study, physicians were quite inaccurate in estimating the peak expiratory flow rate by examining patients, whereas the patients themselves were far more accurate in guessing the measurement. In addition, they were able to tell whether the peak expiratory flow rate was better, the same or worse from day to day. Patients' symptoms are important indices of the severity of airway obstruction which should be exploited in management.
显然，准确评估哮喘的严重程度需要测量气道阻塞情况，比如呼气峰值流速。在这项研究中，医生通过检查患者来估计呼气峰值流速时相当不准确，而患者自己猜测测量值时要准确得多。此外，他们能够判断呼气峰值流速每天是变好了、一样还是变差了。患者的症状是气道阻塞严重程度的重要指标，在治疗中应加以利用。
