Oxford University Press, International Journal of Epidemiology, 3(43), p. 878-886, 2014
DOI: 10.1093/ije/dyt267
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Background: Human leukocyte telomere length (LTL) decreases with age and shorter LTL has previously been associated with increased prospective mortality. However, it is not clear whether LTL merely marks the health status of an individual by its association with parameters of immune function, for example, or whether telomere shortening also contributes causally to lifespan variation in humans.