Barański Kamil, Zejda Jan E
. Department of Epidemiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland.
J Bras Pneumol. 2018 Jan-Feb;44(1):52-54. doi: 10.1590/S1806-37562017000000127.
The aim of the study was to assess short-term repeatability of measurements of fractional exhaled nitric oxide (FENO) and its correlates in children in the 6- to 9-year age bracket participating in a respiratory epidemiological survey. FENO was measured in two sessions one week apart in 101 children. Participants were divided into three groups: asymptomatic (n = 76); symptomatic (n = 14); and asthma (n = 11). Absolute and relative differences between the measurements, as well as concordance correlation coefficients, were used in order to assess repeatability. The two FENO measurements were strongly correlated (0.98). Although intragroup comparisons of the two measurements were not significantly different (p = 0.2), intergroup comparisons were. FENO measurements are reproducible in children in epidemiological settings.
该研究的目的是评估参与一项呼吸道流行病学调查的6至9岁儿童呼出一氧化氮分数（FENO）测量及其相关因素的短期重复性。对101名儿童在相隔一周的两个时间段测量了FENO。参与者被分为三组：无症状组（n = 76）；有症状组（n = 14）；哮喘组（n = 11）。为了评估重复性，使用了测量值之间的绝对和相对差异以及一致性相关系数。两次FENO测量高度相关（0.98）。虽然两次测量的组内比较无显著差异（p = 0.2），但组间比较有差异。在流行病学环境中，儿童的FENO测量具有可重复性。
