Lindgren B R, Finkelstein S M, Prasad B, Dutta P, Killoren T, Scherber J, Stibbe C L, Snyder M, Hertz M I
Division of Biostatistics, School of Public Health, Minneapolis, MN 55455-0378, USA.
Res Nurs Health. 1997 Dec;20(6):539-50. doi: 10.1002/(sici)1098-240x(199712)20:6<539::aid-nur8>3.0.co;2-n.
Electronic spirometry units were used to monitor lung transplantation recipients upon their return home. The data from 77 participants were used to develop methods to verify that the pulmonary function measurements, forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1), were reliable and valid. The standard deviation was calculated for the best daily effort on consecutive days of home spirometry. An acceptable upper limit for the standard deviation, as the measure of day-to-day reliability, was 0.20 for FVC and 0.15 for FEV1. Validity was determined by examining the mean difference (bias) between the spirometry done in the pulmonary function laboratory and the home monitoring results. The clinic values were slightly higher, with an average difference of 0.15 for FVC and 0.12 for FEV1. Therefore, the home spirometry measurements have a high degree of reliability and validity and can now be used for early detection of serious complications.
电子肺活量计用于监测肺移植受者回家后的情况。来自77名参与者的数据被用于开发方法，以验证肺功能测量指标，即用力肺活量（FVC）和第1秒用力呼气量（FEV1），是可靠且有效的。计算了在家连续进行肺活量测定时每日最佳努力值的标准差。作为日常可靠性的衡量指标，FVC的标准差可接受上限为0.20，FEV1为0.15。通过检查肺功能实验室进行的肺活量测定与家庭监测结果之间的平均差异（偏差）来确定有效性。临床值略高，FVC的平均差异为0.15，FEV1为0.12。因此，家庭肺活量测定具有高度的可靠性和有效性，现在可用于早期发现严重并发症。
