References
- FangXWangXBaiCCOPD in China: the burden and importance of proper managementChest2011139492092921467059
- YoonHISinDDConfronting the colossal crisis of COPD in ChinaChest2011139473573621467051
- ZhongNWangCYaoWPrevalence of chronic obstructive pulmonary disease in China: a large, population-based surveyAm J Respir Crit Care Med2007176875376017575095
- VestboJHurdSSAgustíAGGlobal strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease: GOLD executive summaryAm J Respir Crit Care Med2013187434736522878278
- LiistroGVanweldeCVinckenWTechnical and functional assessment of 10 office spirometers: a multicenter comparative studyChest2006130365766516963659
- KjeldgaardPLykkegaardJSpillemoseHUlrikCSMulticenter study of the COPD-6 screening device: feasible for early detection of chronic obstructive pulmonary disease in primary care?Int J Chron Obstruct Pulmon Dis2017122323233128831249
- GiavarinaDUnderstanding Bland Altman analysisBiochem Med2015252141151
- ZakiRBulgibaAIsmailRIsmailNAStatistical methods used to test for agreement of medical instruments measuring continuous variables in method comparison studies: a systematic reviewPLoS One201275e3790822662248
- BlandJMAltmanDGStatistical methods for assessing agreement between two methods of clinical measurementLancet1986184763073102868172
- VandevoordeJVerbanckSSchuermansDKartounianJVinckenWFEV1/FEV6 and FEV6 as an alternative for FEV1/FVC and FVC in the spirometric detection of airway obstruction and restrictionChest200512751560156415888828
- LamprechtBSchirnhoferLTiefenbacherFSix-second spirometry for detection of airway obstruction: a population-based study in AustriaAm J Respir Crit Care Med2007176546046417556719
- Akpinar-ElciMFedanKBEnrightPLFEV6 as a surrogate for FVC in detecting airways obstruction and restriction in the workplaceEur Respir J200627237437716452595
- MillerMRHankinsonJBrusascoVStandardisation of spirometryEur Respir J200526231933816055882
- HouSZhanYGGuoXCHeJNormal values of lung function in the population of GuangdongMuKJLiuSWNationwide Normal Values of Lung function1st edPUMC & Beijing Medical University19906780
- GerbaseMWDupuis-LozeronESchindlerCAgreement between spirometers: a challenge in the follow-up of patients and populations?Respiration201385650551423485575
- CohenJA coefficient of agreement for nominal scalesEduc Psychol Meas19602013746
- McginnTWyerPCNewmanTBKeitzSLeipzigRForGGTips for learners of evidence-based medicine: 3. Measures of observer variability (kappa statistic)Can Med Assoc J2004171111369137315557592
- IBM Institute for Business ValueHealthcare in China: Toward greater access, efficiency and qualityNew YorkIBM Institute for Business Value2006 Available from: https://www-935.ibm.com/services/us/imc/pdf/g510-6268-healthcare-china.pdfAccessed June 26, 2018
- RebuckDAHananiaNAD’UrzoADChapmanKRThe accuracy of a handheld portable spirometerChest199610911521578549178
- WiltshireNKendrickAHEvaluation of a new electronic spirometer: the vitalograph “Escort” spirometerThorax19944921751788128409
- HansenJESunX-GWassermanKDiscriminating measures and normal values for expiratory obstructionChest2006129236937716478854
- BhattNYWoodKLWhat defines abnormal lung function in older adults with chronic obstructive pulmonary disease?Drugs Aging200825971772818729545
- HankinsonJLOdencrantzJRFedanKBSpirometric reference values from a sample of the general U.S. populationAm J Respir Crit Care Med199915911791879872837
- SwanneyMPJensenRLCrichtonDABeckertLECardnoLACrapoROFEV6 is an acceptable surrogate for FVC in the spirometric diagnosis of airway obstruction and restrictionAm J Respir Crit Care Med2000162391791910988105
- Pérez-PadillaRHallalPCVázquez-GarcíaJCImpact of bronchodilator use on the prevalence of COPD in population-based samplesCOPD20074211312017530504
- Perez-PadillaRWehrmeisterFCCelliBRReliability of FEV1/FEV6 to diagnose airflow obstruction compared with FEV1/FVC: The PLATINO Longitudinal StudyPLoS One201388e6796023936297
- HaynesJMQuality assurance of the pulmonary function technologistRespir Care201257111412622222130
- RotheTKarrerWSchindlerCAccuracy of the Piko-1 pocket spirometerJ Asthma2012491455022204276
- ChingSMPangYKPriceDDetection of airflow limitation using a handheld spirometer in a primary care settingRespirology201419568969324708063
- SichletidisLSpyratosDPapaioannouMA combination of the IPAG questionnaire and PiKo-6® flow meter is a valuable screening tool for COPD in the primary care settingPrim Care Respir J201120218418921597666
- NishimuraKNakayasuKKobayashiAMitsumaSCase identification of subjects with airflow limitations using the handheld spirometer “Hi-Checker ™”: comparison against an electronic desktop spirometerCOPD20118645045522149406
- BarrRGStempleKJMesia-VelaSReproducibility and validity of a handheld spirometerRespir Care200853443344118364054