title: Two-wave longitudinal findings from the Berlin aging study: introduction to a collection of articles.
abstract: We provide background information for a collection of articles that describe two-wave longitudinal findings derived from the first intensive follow-up of participants of the Berlin Aging Study (BASE). Multidisciplinary data were collected during 1995-1996 from 206 survivors approximately 4 years after baseline assessment (1990-1993). The strengths of the initial BASE design, in terms of a focus on very old age, multidisciplinary intensive assessment, and an examination of selectivity issues, were maintained in this longitudinal extension of the study.
authors.affiliation: Max Planck Institute for Human Development, Berlin, Germany. Smith@mpib-berlin.mpg.de
authors.forename: Jacqui
authors.initials: J
authors.lastname: Smith
authors.forename: Ineke
authors.initials: I
authors.lastname: Maas
authors.forename: Karl Ulrich
authors.initials: KU
authors.lastname: Mayer
authors.forename: Hanfried
authors.initials: H
authors.lastname: Helmchen
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Steinhagen-Thiessen
authors.forename: Paul B
authors.initials: PB
authors.lastname: Baltes
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D005260:Female; D015577:Geriatric Assessment; D005853:Geriatrics / Q000379:methods; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D011159:Population Surveillance