Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV 26505, USA.
J Occup Environ Med. 2011 Oct;53(10):1205-9. doi: 10.1097/JOM.0b013e31823078b8.
Effectiveness of periodic spirometry in medical monitoring depends on spirometry quality. We describe an intervention on spirometry quality and its impact on accuracy and precision of longitudinal measurements.
The intervention was conducted from 2005 to 2010 in a monitoring program involving approximately 2500 firefighters. Intervention supported adherence to 2005 American Thoracic Society/European Respiratory Society recommendations through monitoring of spirometry quality and longitudinal data precision, technician training, change of spirometer, and quality control.
The percentage of forced vital capacity tests meeting the American Thoracic Society/European Respiratory Society criteria increased from 60% to 95% and the mean longitudinal forced expiratory volume in 1 second within-person variation decreased from 6% to 4%. The increased accuracy and precision of measurements and estimated rates of forced expiratory volume in 1 second decline were statistically significant.
Monitoring of quality and data precision helped to recognize the need for intervention. The intervention improved accuracy and precision of spirometry measurements and their usefulness.
医学监测中定期肺功能检查的效果取决于肺功能检查质量。我们描述了一项针对肺功能检查质量的干预措施，以及其对纵向测量准确性和精密度的影响。
该干预措施于 2005 年至 2010 年在一个约 2500 名消防员参与的监测项目中进行。通过监测肺功能检查质量和纵向数据精密度、技术员培训、更换肺量计和质量控制，该干预措施支持遵守 2005 年美国胸科学会/欧洲呼吸学会的建议。
符合美国胸科学会/欧洲呼吸学会标准的用力肺活量测试百分比从 60%增加到 95%，个体内平均用力呼气一秒量纵向变化从 6%降至 4%。测量的准确性和精密度提高，以及估计的 1 秒用力呼气量下降率增加均具有统计学意义。
质量和数据精密度监测有助于认识到干预的必要性。该干预措施提高了肺功能检查测量的准确性和精密度及其有用性。
