Cohort Profile: The 1895, 1905, 1910 and 1915 Danish Birth Cohort Studies - secular trends in the health and functioning of the very old.

Cohort Profile: The 1895, 1905, 1910 and 1915 Danish Birth Cohort Studies secular trends in the health and functioning of the very old Signe Høi Rasmussen, Karen Andersen-Ranberg, Mikael Thinggaard, Bernard Jeune, Axel Skytthe, Lene Christiansen, James W. Vaupel, Matt McGue and Kaare Christensen* Danish Aging Research Center, University of Southern Denmark, Odense, Denmark, Department of Geriatrics, Odense University Hospital, Odense, Denmark, Max-Planck Institute for Demographic Research, Rostock, Germany, Max-Planck Odense Center on the Biodemography of Aging, University of Southern Denmark, Odense, Denmark, Department of Psychology, University of Minnesota, Minneapolis, MN, USA, Department of Clinical Genetics and Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark