The workshop focused on challenges that are specific to the types of longitudinal studies supported by NIA and aimed to identify areas of methodological research that could be pursued in order to ...
We study quantile regression (QR) for longitudinal measurements with nonignorable intermittent missing data and dropout. Compared to conventional mean regression, quantile regression can characterize ...
In patients with isolated syndromes that are clinically suggestive of multiple sclerosis, such as optic neuritis or brain-stem or spinal cord syndromes, the presence of lesions as determined by T ...
Correspondence to Dr Kirsten Corder, MRC Epidemiology Unit University of Cambridge School of Clinical Medicine Box 285, Institute of Metabolic Science Cambridge Biomedical Campus Cambridge CB2 0QQ UK; ...
The National Longitudinal Study of Adolescent Health (AddHealth) is a nationally representative study that explores the causes of health-related behaviors of adolescents in grades 7 through 12 and ...
Background Insomnia symptoms are prevalent in older adults and linked to cardiovascular disease (CVD), but the role of long-term symptom trajectories remains unclear. We investigated associations ...
More than 10,000 graduates from Wisconsin's high school class of 1957 have been participating for a half-century in the Wisconsin Longitudinal Study, one of the longest and most respected sociological ...
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