Baseline participation in a health examination survey of the population 65 years and older: who is missed and why?

Which older people decline participation in a primary care trial of physical activity and why: insights from a mixed methods approach

(2014) Annabelle Rogers et al.   BMC Geriatrics

Socioeconomic position and the incidence of type 2 diabetes: the ELSA study

(2012) Panayotes Demakakos et al.   EUROPEAN JOURNAL OF EPIDEMIOLOGY

Why older people refuse to participate in falls prevention trials: A qualitative study

(2012) Annemijn B.M. Elskamp et al.   EXPERIMENTAL GERONTOLOGY

Operationalizing multimorbidity and autonomy for health services research in aging populations - the OMAHA study

(2011) Martin Holzhausen et al.   BMC HEALTH SERVICES RESEARCH

Register-based data indicated nonparticipation bias in a health study among aging people

(2011) Olli Nummela et al.   JOURNAL OF CLINICAL EPIDEMIOLOGY

Baseline and Follow-Up Characteristics of Participants and Nonparticipants in a Randomized Clinical Trial of Multifactorial Fall Prevention in Denmark

(2009) Ane B. Vind et al.   JOURNAL OF THE AMERICAN GERIATRICS SOCIETY

Using multiple frames in health surveys

(2009) Patricia Metcalf et al.   STATISTICS IN MEDICINE

Issues in Conducting Epidemiologic Research Among Elders: Lessons From The MOBILIZE Boston Study

(2008) E. J. Samelson et al.   AMERICAN JOURNAL OF EPIDEMIOLOGY