安阳市城区500例6~13岁儿童肺功能与生长发育指标的关系分析

目的探讨安阳市城区儿童肺功能与生长发育指标的关系。方法按简单随机抽样法,抽取学校500名6~13岁健康儿童,其中男295例,女205例,检测其肺功能主要指标:呼气峰流速(PEF)、第1s用力呼气容积(FEV1)、用力肺活量(FVC)、以及用力呼气流量(FEF),分别取25%、50%、75%肺活量的呼气流速。Pearson相关性分析不同性别儿童肺功能与身高、年龄、体重的关系;且经由多重线性回归分析生长发育指标对肺功能的影响。结果男生FVC显著高于女生,FEF25%低于女生(P<0.05);儿童肺功能主要指标PEF、FEV1、FVC、FEF25%、FEF50%、FEF75%均与年龄、身高、体重呈正相关(P<0.05);身高对儿童肺功能主要指标均有影响,且较体重和年龄影响大;体重对FVC、FEV1、PEF影响较大,年龄对FEF50%和FEF75%影响较大。结论身高对儿童肺功能影响最大,年龄、体重其次。     

上海市某郊区学校儿童肺功能测定结果分析

[目的]了解上海市某郊区学校儿童的肺功能基本情况. [方法]对上海市某郊区小学的3～5年级学生进行肺功能检查. [结果]男女生肺功能主要指标如用力肺活量(FVC)、一秒钟用力肺活量(FEV1.0)、峰值呼气流速(PEF)、用力呼气中段流速(FEF2575)、用力呼出25％肺活量的呼吸流速(FEF25％)、用力呼出50％肺活量的呼吸流速(FEF50％)、用力呼出75％肺活量的呼吸流速(FEF75％)等与身高、体重和年龄均呈密切正相关,且与身高的关系最为密切;男生FVC、FEV1.0、PEF、FEF25％高于女生;有17.9％者显示肺通气功能受损,另有6.6％者可能发生早期小气道病变.[结论]肺功能测定是儿童呼吸系统的重要检测手段;儿童肺功能检测中,小气道指标对肺功能早期改变的意义尤其重要.     

上海市复合型大气污染对儿童肺功能和呼出气一氧化氮的急性效应

【目的】了解复合型大气污染对儿童呼吸道的急性影响。【方法】采用定组研究设计,在上海市徐汇区、虹口区各选择1所小学（A、B）,随机抽取四年级5个班级的学生开展肺功能和呼出气一氧化氮（FeNO）的测定,前3次检测开展于2020年5—6月,第4次肺功能检测开展于2021年9—12月。同时收集同期2所学校就近空气质量监测点细颗粒物（PM2.5）、可吸入颗粒物（PM10）、SO2、NO2、O3、CO大气污染物的日均值和小时均值,收集同期气象监测资料（温度、湿度、风速、大气压）。采用线性混合效应模型分析夏季大气污染对肺功能指标和呼吸道炎症改变指标的影响。【结果】单污染物模型结果显示,PM2.5、PM10、SO2和NO2与FeNO呈正相关,效应体现在滞后0～3日（lag0～lag3）（均P<0.05）,PM2.5、PM10和NO2与肺功能最大呼气流量（PEF）、用力呼气流量25%的呼气流速（FEF25%）、FEF50%、FEF75%、FEF25%～75%、用力呼气量（FVC）、第1秒用力呼气容积（FEV1）和FEV1/FVC改变呈负相关,效应体现在lag0～lag3（均P<0.05）。双...     

哮喘儿童肺功能测定指标分析与临床应用

[目的]观察儿童哮喘的肺功能特点及其临床意义. [方法]采用法国迪尔肺功能测定系统分别对哮喘儿童发作期、缓解期和正常儿童进行肺功能测定.[结果]发作期及缓解期大气道功能均以最大呼气流速峰值(PEF)敏感,小气道功能以用力呼气25%流速(FEF25)、用力呼气50%流速(FEF50)敏感,缓解期大部分患儿小气道功能仍有轻度损害. [结论]小气道功能的测定在病情程度判定、疗效观察、缓解期随访方面均有着非常重要的价值.     

小气道功能测定在粉尘作业人员职业健康监护及风险评估中的应用

[目的]了解粉尘作业对员工呼吸功能的影响,探讨小气道功能测定在粉尘作业人员职业健康监护及尘肺风险评估中的应用。[方法]2009年对某机械制造企业粉尘作业车间进行生产环境调查、粉尘浓度检测,对216名粉尘作业人员进行肺功能测定等职业健康检查及问卷调查。[结果]粉尘作业人员用力呼气75％肺活量的瞬间流量（forcedexpiratoryflowat75％offorcedvitalcapacity,FEF75％）的中位数为79％,低于正常值,用力肺活量（forcedvitalcapacity,FVC）、第1秒用力呼气容积（forcedexpiratoryvolumeinonesecond,FEV1）、1秒率（FEVl／FVC）、最高呼气流量（peakexpiratoryflow,PEF）、用力呼气25％肺活量的瞬间流量（forcedexpiratoryflowat25％FVC,FEF25％）、用力呼气50％肺活量的瞬间流量（forcedexpiratoryflowat50％ofFVC,FEF50％）的均数或中位数都在正常范围内,PEF、FEF25％、FEF50％和FEF75％异常的人员比例明显增高,分别为21．30％、BO．56％、45．37％和50．00％,而且这些参数异常人员接尘工龄较短,中位数分别为3．5年、4年、5年和5年。FVC、FEV1、FEV1／FVC、PEF、FEF25％、FEF50％、FEF75％异常人员的胸片检查异常比例分别为55．56％、60％．00、0、21．74％、15．15％、23．47％、25．00％。将胸片异常组与正常组的肺功能进行比较,胸片正常组的PEF、FEF25％、FEF50％的参数值低于异常组,差异有统计学意义（P〈0．05）。工龄10年以上的粉尘作业人员FEV1、FEF25％和FEF75％异常比例高于工龄较短组（P〈0．05）。[结论]粉尘作业人员存在气流受限、小气道功能障碍。随着接尘工龄的增加,FEV1、FEF25％和FEF75％异常人员有增多的趋势。该人群肺功能检查结果与胸片表现并不同步。在职业健康监护工作中,应对粉尘作业人员的肺功能尤其是小气道功能进行重点观察和动态对比分析,并将其作为尘肺风险评估的指标之一。建议在职业健康检查中将FEF25％、FEF50％、FEF75％等反映小气道功能的参数增设为监测指标。     

大气颗粒物污染对儿童用力呼气肺量图影响的多因素分析

本文选择居住在大气颗粒物污染水平不同地区5年以上,家庭使用煤气灶的11～13岁小学生504人,进行肺功能测定,采用对小气道功能敏感的指标用力呼气肺量图平均通过时间,用多因素分析方法研究颗粒物和其它因素对儿童肺功能的影响。结果表明大气颗粒物污染可使平均通过时间(MTT)延长,逐步回归的偏回归系数为正,提示较长期生活在颗粒物污染地区的儿童小气道功能受到损害。     

陶瓷作业工人肺功能测试结果分析

目的了解陶瓷作业工人肺功能损害的情况,为预防尘肺病发生提供依据。方法选择某陶瓷厂200名接尘工人,平均年龄为（32.31±8.25）岁,另选取非接尘工人50名为对照组,平均年龄为（34.88±9.75）岁,采用意大利的spirolabII型的肺功能仪,测试的项目包括肺活量（VC）、用力呼吸肺活量（FVC）、第1s用力呼气量（FEV1）、一秒率（FEV1%）、最大呼气中段流速（FEF25-75）、最大呼气25%、50%、75%肺活量时流量（FEF25%、FEF50%、FEF75%）;应用SPSS13.0统计软件统计分析。结果接尘组的肺功能指标FEV1、FEV1%、FEF25-75、FEF50%、FEF75%明显低于对照组,差异有统计学意义（P〈0.05）;接尘工龄在10年～、15年～、20年～组的工人肺功能指标中VC、FVC、FEF25-75、FEF50%、FEF75%的测试均值明显低于接尘工龄〈5年组,差异有统计学意义（P〈0.05）。结论陶瓷粉尘对作业工人的肺功能有损害作用,且随着接尘工龄的增加肺功能受损害程度增加。     

淄博市8～12岁城区儿童肺功能正常值测定及预测分析

目的建立淄博城区8~12岁儿童肺通气功能的预测方程,为后续评估儿童肺功能状况和呼吸系统疾病预测提供依据。方法于2013年随机抽取淄博市城区东部和西部各1所小学的8~12岁儿童共392人作为研究对象,测量肺功能指标包括用力肺活量(FVC)、第1秒用力呼气量(FEV1)、最大呼气流量(PEF)、最大呼气中段流量(MMEF)、呼吸初期瞬间流量(FEF75%)、呼吸中期瞬间流量(FEF50%)、呼吸后期瞬间流量(FEF25%),以年龄、身高、体重为影响因素,按性别分组后进行多重线性回归分析,建立肺功能指标的预测方程。结果在调查的392例儿童中,男生FVC高于女生(P0.05),FEF25%低于女生(P0.05),其余肺功能指标的性别差异无统计学意义(P0.05)。儿童主要肺功能指标(FVC、FEV1、PEF、MMEF、FEF75%、FEF50%、FEF25%)与身高、年龄、体重均呈正相关(P0.05),其中与身高的相关性最强,如FVC(r男=0.752,r女=0.816)。通过多重线性回归建立了各肺功能指标的预测方程,如男生FEV1=-2.451+0.025×身高+0.007×体重+0.053×年龄,女生FEV1=-2.619+0.027×身高+0.008×体重+0.037×年龄。结论身高是影响儿童肺功能的最重要因素,建立了淄博市城区8~12岁儿童肺功能指标的预测方程。     

煤矿接尘工人高血压病对肺功能的影响

对患有高血压的222名煤矿接尘工人(高血压组,未经药物治疗)及同地区同工种218名血压正常者(对照组)进行肺功能测定。结果显示,高血压组吸烟者和不吸烟者分别与相应的对照组比较,反映大气道功能的指标用力肺活量(FVC)、第1秒时间肺活量(FEV1.0)和用力呼气1秒率(FEV1.0/FVC)差异均无统计学意义(P>0.05)。反映小气道的指标25%FVC时的用力呼气流量(FEF75)和最大呼气中期流速(MMEF75/25)高血压组吸烟者低于对照组不吸烟者(P<0.05);高血压组不吸烟者MMEF75/25低于对照组不吸烟者(P<0.05);对照组吸烟者FEF75、MMFF75/25低于对照组不吸烟者(P<0.05);根据1999年WHO/ISH高血压治疗指南,将高血压组吸烟者按血压水平分为3组,高血压3级组吸烟者FEF50低于高血压1级组吸烟者(P<0.05)。说明高血压随着病情的进展对肺功能产生一定的影响,尤其对小气道影响较明显。高血压病和吸烟对小气道影响有相加作用,控制吸烟及高血压病的发生和进展对改善煤矿接尘工人的肺功能是有益的。     

大气污染对儿童肺通气功能及唾液溶菌酶含量的影响

目的探讨哈尔滨市大气污染对儿童唾液溶菌酶含量及肺功能的影响。方法于2014—2015年在哈尔滨市两个城区测定大气PM2.5浓度,分别在距离监测点500~1 000 m处选择1所小学,对602名儿童进行肺功能、唾液溶菌酶测定及问卷调查。结果污染区(道外区)儿童唾液溶菌酶含量及肺功能指标最大通气量(MVV)低于清洁区(道里区),阻塞指数(OI)高于清洁区,差异均有统计学意义(P0.05)。污染区不同年级儿童肺活量(VC)、用力肺活量(FVC)、中间呼气流量(MMF)、峰值流量(PEF)、75%用力呼气流量(FEF75)、MVV等肺功能指标随着年级的增加而升高,清洁区不同年级儿童VC、FVC、1 s用力呼气容积(FEV1)、OI、MVV等肺功能指标随着年级的增加而升高,差异均有统计学意义(P0.05)。污染区儿童唾液溶菌酶含量均低于同年级的清洁区儿童;污染区3年级儿童肺功能指标OI高于清洁区,MVV低于清洁区;污染区4年级儿童肺功能指标VC、FVC、FEV1、FEF75、MVV均低于清洁区;污染区5年级儿童肺功能指标FVC低于清洁区;上述差异均有统计学意义(P0.05)。污染区男生肺功能指标VC、FVC、FEV1、MMF、PEF、FEF75、MVV均高于女生,OI低于女生,差异有统计学意义(P0.05)。清洁区男生肺功能指标VC、FEV1、MMF、PEF、FEF75、MVV均高于女生,差异有统计学意义(P0.05)。污染区儿童唾液溶菌酶含量均低于清洁区同性别学生;污染区男生肺功能指标OI低于清洁区,污染区女生肺功能指标FVC、MVV低于清洁区;上述差异均有统计学意义(P0.05)。偏相关分析结果显示,大气PM2.5浓度与唾液溶菌酶含量呈负相关,与肺功能指标VC、FVC、MVV呈负相关,与OI呈正相关,均有统计学意义(P0.05)。结论大气污染可降低唾液溶菌酶含量及儿童肺通气功能,应注意防范。     

Changes in lung function of children after an air pollution decrease

Forced vital capacity (FVC), forced expiratory volume in 1 sec (FEV1.0), forced expiratory flow between 25 and 75% of FVC (FEF25-75), and maximal expiratory flow at 50% of FVC (MEF50) were measured in 1,880 school children who lived in urban areas before and after a decrease of air pollution. A group of 162 children from a suburban area served as controls. In the first survey, FEV1.0, FEF25-75, and MEF50 of children from urban areas were significantly lower, while in the second survey they were not significantly different from those of controls. The slopes over time of FEV1.0, FEF25-75, and MEF50, adjusted for sex and anthropometric variables, were closely related to the decrease of pollutants concentration. Our results suggest that a decrease of air pollution may produce an improvement of lung function.     

Acute effect of sulphur dioxide from a power plant on pulmonary function of children, Thailand

BACKGROUND: Epidemiological studies have shown reversible declines of lung function in response to air pollution, but research on the independent effect of short-term exposure to ambient sulphur dioxide (SO2) on pulmonary function is limited. This study evaluated the association of short-term exposure to increased ambient SO2 and daily pulmonary function changes among children with and without asthma. METHODS: The associations of daily exposure to SO2 and particulate matter 10 microm in diameter (PM10) with pulmonary function were examined in 175 asthmatic and non-asthmatic children aged 6-14 years who resided near a coal-fired power plant in Thailand. Each child performed daily pulmonary function tests during the 61-day study period. General linear mixed models were used to estimate the association of air pollution and pulmonary function controlling for time, temperature, co-pollutants, and autocorrelation. RESULTS: In the asthmatic children, a daily increase in SO2 was associated with negligible declines in pulmonary function, but a small negative association was found between PM10 and pulmonary function. A 10-microg/m(3) increment was associated with changes in the highest forced vital capacity (FVC) (-6.3 ml, 95% CI: -9.8, -2.8), forced expiratory volume at 1 second (FEV(1)) (-6.0 ml, 95% CI: -9.2, 2.7), peak expiratory flow rate (PEFR) (-18.9 ml.sec(-1), 95% CI: -28.5, -9.3) and forced expiratory flow 25 to 75% of the FVC (FEF(25-75%)) (-3.7 ml.sec(-1), 95% CI: -10.9, 3.5). No consistent associations between air pollution and pulmonary function were found for non-asthmatic children. CONCLUSION: Declines in pulmonary function among asthmatic children were associated with increases in particulate air pollution, rather than with increases in SO2.     

南宁市空气污染水平不同的两区儿童肺功能及其影响因素的研究

目的 比较南宁市不同空气污染水平地区儿童肺功能的差异,探讨肺功能的影响相关因素。方法 按整群抽样方法,在南宁市青秀区和西乡塘区各选1所小学（A校和B校）3～4年级的儿童共537人作为研究对象,进行肺功能测试和问卷调查。结果 两区大气首要污染物都为PM2.5和PM10,青秀区A校周围大气中PM2.5、PM10、SO2、NO2年均浓度低于西乡塘区B校（P＜0.05）;控制年龄、身高、体重等因素后,青秀区A校女生FVC、FEV1.0、PEF、FEF25%～75%、FEF25%和FEF50%实测值均高于西乡塘区B校,A校男生FEV1.0实测值也高于B校,差异具有统计学意义（P＜0.05）;学校所在地区、房屋1年内购置大件家具、房屋3年内装修、房屋内饲养宠物和使用空气净化器是影响儿童肺功能的主要因素（P＜0.05）。结论 南宁市空气污染与儿童肺功能下降有关,且女生较男生对空气污染物更敏感;室内空气质量也是影响儿童肺功能的重要因素,空气净化器的使用对儿童肺功能有保护作用。     

Expiratory flows decreased in Los Angeles children from 1984 to 1987: is this evidence of effects of air pollution?

To estimate the effects of air pollution we measured expiratory flows and vital capacities in 556 Mexican-American Los Angeles children in 1984 and 251 in 1987. They included 106 who were measured in 1984 and 1987 and 145 measured only in 1987. Pulmonary function values were standardized for growth be expressing them as percentages of predicted (% pred) based on sex and height. In 1987 mean values for FEV1 and FEF25-75 were lower by 4.5% pred and 13.6% pred respectively (P < 0.001), while vital capacities were not different in 213 children tested as fifth graders in 1984 and 251 fifth grade children in 1987. For the 106 children tested at both sessions (in second grade in 1984 and in fifth grade in 1987) FVC was also not different but FEV1 was 2.0% pred lower (P < 0.06) and FEF25-75 was 7.0% pred lower (P < 0.001). For the 450 children tested only in 1984 and the 106 retested in 1987 there were no significant differences in mean values for FVC, FEV1, and FEF 25-75. Similarly there were no significant differences between the 1987 mean values for 145 children who were studied longitudinally were not different from the 1984 and 1987 cross-sectional cohorts. Across this interval FEV1 and midflows diminished but vital capacities did not. Airways obstruction worsened during children's residence in Los Angeles from 1984 to 1987 and this is probably due to air pollution.     

空气污染对儿童部分免疫及肺通气功能的多因素分析

目的：探讨空气污染儿童健康影响，方法：根据1988－1998年大气污染物[SO2,NOx,总悬浮颗粒（TSP），CO]监测资料，选择唐山市工业区（污染区）和相对清洁区（对照组）7－15岁学龄儿童656人和712人进行局部非特异免疫功能[唾液溶菌酶和分泌型免疫球蛋白A（SIgA)]和肺功能（肺活性（VC），用力肺活量（FVC），1s用力呼气容积（FEV），25％，50％和75％用力肺活量呼气流速（V25,V50和V75)最大通气量（MVV）进行检测并开展问卷调查，结果：污染区大气SO2，NOx和TSP均显著高于对照区（P＜0．05或P＜0．01），多因素分析显示，除SIgA外其他指标均与生理因素有关，其中主要与年龄呈正相关（t=5.130-9.698,P=0.0001)，唾液溶菌酶、SIgA,VC,FVC,MVV,V25,V50和V75，主要与空气NOx可SO2浓度显负相关（P＝0．0005－0．0086），结论：空气污染尤其室外空气污染可导致儿童局部非特异免疫功能及肺通气功能降低。     

Association of lung function with declining ambient air pollution

Recent studies have found a declining prevalence of respiratory infections in East German children, along with a tremendous improvement of air pollution since 1990. The present study evaluates the effects of improved air quality on lung function. Three consecutive cross-sectional surveys of schoolchildren ages 11-14 years from three communities in East Germany were performed in 1992-1993, 1995-1996, and 1998-1999. Lung function tests were available from 2,493 children. The annual mean of total suspended particulates (TSP) declined from 79 to 25 micro g/m(3), whereas levels for sulfur dioxide declined from 113 to 6 micro g/m(3). Mean forced vital capacity (FVC) and forced expiratory volume in 1 sec (FEV(1)) of the children increased from 1992-1993 to 1998-1999. The adjusted percent change of the geometric mean of FVC was 4.7% for a 50 micro g/m(3) decrease of TSP (p = 0.043) and 4.9% for a decrement of 100 micro g/m(3) SO(2) (p = 0.029). Effects on FEV(1) were smaller and not statistically significant. Our study indicates that a reduction of air pollution in a short time period may improve children's lung function.     

Estimating the effect of air pollution from a coal-fired power station on the development of children's pulmonary function

Using geographical information systems (GIS) tools, the present study analyzed the association between children's lung function development and their long-term exposure to air pollution. The study covered the cohort of 1492 schoolchildren living in the vicinity of a major coal-fired power station in the Hadera sub-district of Israel. In 1996 and 1999, the children underwent subsequent pulmonary function tests (PFT) (forced vital capacity (FVC) and forced expiratory volume during the first second (FEV(1))), and the children's parents completed a detailed questionnaire on their health status and household characteristics. A negative association was found between changes in the results of PFT and the estimated individual levels of air pollution. A sensitivity test revealed a FEV(1) decline from -4.3% for the average pollution level to -10.2% for the high air pollution level. The results of a sensitivity test for FVC were found to be similar. Association with the reported health status was found to be insignificant. As we conclude, air pollution from a coal-fired power station, although not exceeding local pollution standards, had a negative effect on children's lung function development. As argued, previous studies carried out in the region failed to show the above association because they were based on zone approaches that assign average concentration levels of air pollutants to all individuals in each zone, leading to a misclassification bias of individual exposure.     

Self-reporting versus parental reporting of acute respiratory symptoms of children and their relation to pulmonary function and air pollution.

BACKGROUND: Studies of acute effects of outdoor air pollution on acute respiratory symptoms in children generally rely on reports by parents. Little is known about the validity of parental reporting of symptoms of their children. We therefore compared symptoms reported by the parents with self-reported symptoms and measured pulmonary function of 741 7-11-year-old Dutch children. We also analysed the association of symptoms reported by the child or parent and outdoor air pollution. METHODS: The parents of the children completed a daily diary of symptoms of their children for about 3 months. The children reported presence of acute respiratory symptoms in the preceding week before a pulmonary function test was conducted (6-10 test days). RESULTS: Children reported between 80% and 220% more acute respiratory symptoms than their parents for them in the same period. The agreement between symptom reports by the parent and the child was low to moderate (Kappa between 0.22 for eye irritation and 0.43 for fever). Presence of cough reported by child or parent was associated with similar small decrements in forced vital capacity (FVC), forced expiratory volume in one second (FEV1.0) and especially peak expiratory flow (PEF) and maximal mid-expiratory flow (FEF25-75). The largest pulmonary function decrements were found when symptoms were reported by both parent and child. Symptoms reported by either child or parent were not associated with air pollution. CONCLUSIONS: Symptom reports of the children were more prevalent but did not agree well with parental reports. The similar association with pulmonary function suggested that self-reported symptoms were neither superior nor inferior to symptoms reported by the parents.     

Health effects of acid aerosols on North American children: pulmonary function.

We examined the health effects of exposure to acidic air pollution among children living in 24 communities in the United States and Canada. Parents of children between the ages of 8 and 12 completed a self-administered questionnaire and provided consent for their child to perform a standardized forced expiratory maneuver at school in 22 of these communities. Air quality and meteorology were measured in each community for the year preceding the pulmonary function tests. Forced vital capacity (FVC) and forced expiratory volume in 1 sec (FEV1.0) measurements of 10,251 white children were examined in a two-stage regression analysis that adjusted for age, sex, height, weight, and sex-height interaction. In this study, a 52 nmol/m3 difference in annual mean particle strong acidity was associated with a 3.5% (95% CI, 2.0-4.9) decrement in adjusted FVC and a 3.1% (95% CI, 1.6-4.6) decrement in adjusted FEV1.0. The FVC decrement was larger, although not significantly different, for children who were lifelong residents of their communities (4.1%, 95% CI, 2.5-5.8). The relative odds for low lung function (that is, measured FVC less than or equal to 85% of predicted), was 2.5 (95% CI, 1.8-3.6) across the range of particle strong acidity exposures. These data suggest that long-term exposure to ambient particle strong acidity may have a deleterious effect on lung growth, development, and function.     

Children's lung function and antioxidant vitamin,fruit, juice,and vegetable intake

The authors investigated the relation between children's pulmonary function and intake of fruits, vegetables, juices, and vitamins A, C, and E by examining cross-sectional data from 2,566 children in the Children's Health Study collected during 1997-1998. Low total vitamin C intake (< or =10th percentile) was associated with deficits in forced vital capacity for both boys and girls and with deficits in flows that were larger in girls (forced expiratory volume in 1 second (FEV1), -3.3%, 95% confidence interval (CI): -6.0, -0.5; forced expiratory flow between 25% and 75% of forced vital capacity (FEF(25-75)), -5.5%, 95% CI: -10.5, -0.3) compared with boys (FEV1, -2.3%, 95% CI: -4.8, 0.3; FEF(25-75), -2.4%, 95% CI: -7.4, 2.8). Low dietary vitamin E intake was associated with lower FEF(25-75) (boys: FEF(25-75), -8.9%, 95% CI: -14.2, -3.3; girls: FEF(25-75), -2.5%, 95% CI: -8.3, 3.7). Deficits in FEF(25-75) were associated with low dietary vitamin A intake in girls (FEF(25-75), -7.9%, 95% CI: -12.7, -2.8) and with low total vitamin A intake in boys with asthma (FEF(25-75), -15.6%, 95% CI: -27.6, -1.6). Low intakes of orange and other fruit juices, which were the largest source of vitamin C, were associated with deficits in forced vital capacity and FEV1 in boys. In summary, lung function levels were lower in children with inadequate dietary antioxidant vitamin intake.