Use of Lambda-Mu-Sigma-Derived Z Score for Evaluating Respiratory Impairment in Middle-Aged Persons
Fragoso C, Gill TM, McAvay G, Van Ness PH, Yaggi HK, Concato J. Use of Lambda-Mu-Sigma-Derived Z Score for Evaluating Respiratory Impairment in Middle-Aged Persons. Respiratory Care 2011, 56: 1771-1777. PMID: 21605489, PMCID: PMC3676885, DOI: 10.4187/respcare.01192.Peer-Reviewed Original ResearchConceptsRespiratory symptomsRespiratory impairmentMiddle-aged personsZ-scoreAirflow limitationSpirometric valuesParticipants ages 45Normal age-related changesNutrition Examination SurveyThird National HealthLambda-muMiddle-age personsAge-related changesPulmonary functionExamination SurveyAtherosclerosis RiskNational HealthAge 45Spirometric dataSymptomsMortalityCommunity studyImpairmentScoresValid strategyRespiratory Impairment and Mortality in Older Persons
Fragoso C, Gill T, McAvay G, Yaggi H, Van Ness P, Concato J. Respiratory Impairment and Mortality in Older Persons. Journal Of Investigative Medicine 2011, 59: 1089. DOI: 10.2310/jim.0b013e31822bb213.Peer-Reviewed Original ResearchRespiratory symptomsRespiratory impairmentOlder personsAirflow limitationPulmonary functionRestrictive patternNHANES IIIZ-scoreSpirometric Z-scoresCardiovascular Health StudyRisk of deathNutrition Examination SurveyThird National HealthAge-related changesCause mortalityHazard ratioMultivariable analysisExamination SurveyNational HealthOdds ratioSpirometric measuresOutcome dataHealth StudyCHS populationFifth percentile