Departamento de Medicina Ocupacional, Universidade de Ciências Médicas de Mazandaran, Sari, Iran.
J Bras Pneumol. 2011 Sep-Oct;37(5):615-20. doi: 10.1590/s1806-37132011000500008.
One of the major issues in the use of spirometry is the evaluation of the values obtained in comparison with standardized reference values. Such reference values should be determined by studying populations similar to the population in which they are intended to be used. Considering the anthropometric differences among races and the effect of regional issues, such as climate and air quality, it is recommended that these standards be set and used regionally. The objective of this study was to measure the spirometric values in residents of the Mazandaran province in Iran, as well as to determine which standardized reference values most closely correlate with the values obtained and to devise predictive equations for the target population.
This was a cross-sectional study of 1,499 volunteers, from whom demographic and anthropometric data were collected. After having been instructed in the correct procedure, each volunteer underwent spirometry. From each volunteer, we obtained three spirometry curves that met the acceptability criteria established by the American Thoracic Society. The test with the highest values of FEV1 and FVC was employed in the analysis.
We observed significant correlations between the measured values and the reference values, for both genders. The strongest correlations were with the European Respiratory Society reference values and with the 18-20 year age bracket. The predictive equations devised were based on the regression coefficients obtained and the demographic data collected.
Our results show that the European Respiratory Society standard is the most appropriate standard for use in the population studied.
使用肺活量计的主要问题之一是评估与标准化参考值相比获得的值。这些参考值应通过研究与预期使用人群相似的人群来确定。考虑到种族之间的人体测量学差异以及气候和空气质量等地区问题的影响，建议在区域范围内制定和使用这些标准。本研究的目的是测量伊朗马赞达兰省居民的肺活量计值，并确定与获得的值最相关的标准化参考值，并为目标人群制定预测方程。
这是一项对 1499 名志愿者的横断面研究，收集了他们的人口统计学和人体测量学数据。在接受正确程序的指导后，每位志愿者都接受了肺活量计检查。从每位志愿者中，我们获得了符合美国胸科学会制定的可接受标准的三条肺活量计曲线。分析中使用了 FEV1 和 FVC 值最高的测试。
我们观察到测量值与参考值之间存在显著相关性，无论性别如何。与欧洲呼吸学会参考值和 18-20 岁年龄组的相关性最强。所制定的预测方程是基于获得的回归系数和收集的人口统计学数据。
我们的结果表明，欧洲呼吸学会标准是研究人群中最适合使用的标准。
