Search results for "missing data not at random"

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Does telomere length predict decline in physical functioning in older twin sisters during an 11-year follow-up?

2016

Background: Leucocyte telomere length (LTL) is known to be associated with mortality, but its association with age-related decline in physical functioning and the development of disability is less clear. This study examined the associations between LTL and physical functioning, and investigated whether LTL predicts level of physical functioning over an 11- year follow-up. Methods: Older mono- (MZ) and dizygotic (DZ) twin sisters (n=386) participated in the study. Relative LTL was measured by qPCR at baseline. Physical functioning was measured by 6-min walking distance and level of physical activity (PA). Walking distance was measured at baseline and at 3-year follow-up. PA was assessed by q…

0301 basic medicineAgingmissing data not at randomTwinsphysical activitysix-minute walking testENVIRONMENTAL-FACTORSDevelopmental psychologyPhysical functioningMAXIMAL WALKING SPEEDSix-minute walking testLeukocytesMedicinetwin studyFinlandtelomereHERITABILITYWOMENTwin studyASSOCIATIONGeneral MedicineMiddle AgedTelomere3142 Public health care science environmental and occupational healthSurvival RateCARDIOVASCULAR-DISEASEbiological agingDisease ProgressionFemalePhysical activityfyysinen toimintakykyMotor ActivityArticleBiological aging03 medical and health sciencesWalking distanceAGEDiseases in TwinsHumansMissing data not at randomMotor activityMobility LimitationMETAANALYSISAgedPhysical activitybusiness.industryMORTALITYDisease progressionRepeated measures designHeritabilityTwin study030104 developmental biology3121 General medicine internal medicine and other clinical medicineGeriatrics and GerontologyDANISH TWINSbusinessPhysical functioningDemographyForecasting
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