2001
Application of the Method of Triads to Evaluate the Performance of Food Frequency Questionnaires and Biomarkers as Indicators of Long-term Dietary Intake
Kabagambe EK, Baylin A, Allan DA, Siles X, Spiegelman D, Campos H. Application of the Method of Triads to Evaluate the Performance of Food Frequency Questionnaires and Biomarkers as Indicators of Long-term Dietary Intake. American Journal Of Epidemiology 2001, 154: 1126-1135. PMID: 11744518, DOI: 10.1093/aje/154.12.1126.Peer-Reviewed Original ResearchMeSH KeywordsAdipose TissueBiomarkersCarotenoidsCosta RicaEpidemiologic Research DesignFactor Analysis, StatisticalFatty AcidsFatty Acids, UnsaturatedFemaleHumansLycopeneMaleMental RecallMiddle AgedMinority GroupsNutrition SurveysReproducibility of ResultsSensitivity and SpecificitySurveys and QuestionnairesTime FactorsTocopherolsConceptsFood frequency questionnaireDietary intakeMethod of triadsFrequency questionnaireDietary recallsAdipose tissueLong-term dietary intakeFatty acidsUS minority groupsSuperior biomarkerPoor biomarkerTissue samplesBiomarkersIntakeMedian validity coefficientsTissueValidity coefficientsQuestionnaireSubjectsPast yearPlasmaTocopherolsWomen
1996
Reproducibility and Validity of a Self-Administered Physical Activity Questionnaire for Male Health Professionals
Chasan-Taber S, Rimm E, Stampfer M, Spiegelman D, Colditz G, Giovannucci E, Ascherio A, Willett W. Reproducibility and Validity of a Self-Administered Physical Activity Questionnaire for Male Health Professionals. Epidemiology 1996, 7: 81-86. PMID: 8664406, DOI: 10.1097/00001648-199601000-00014.Peer-Reviewed Original ResearchConceptsPhysical Activity QuestionnaireActivity QuestionnaireVigorous activityNonvigorous activitiesActivity scoreSelf-administered physical activity questionnaireMale health professionalsParticipants 2 yearsIntraclass correlation coefficientProspective studyHealth professionalsStudy participantsPulse rateActivity diaryStep testWeekly activitiesQuestionnaireDiary measurementsInactivityScoresParticipantsUseful measureActivityParticipants' abilityYears