What the long term cohort studies that began in childhood have taught us about the origins of coronary heart disease

A limited number of observational studies were commenced in the 1970s and 1980s that have aimed to examine the child and adolescent origin of cardiovascular disease. These studies have provided, and continue to provide, critical evidence that have enhanced our understanding of the disease process, the early-life factors involved, and have informed public health and clinical guideline statements. Using data on preclinical markers of vascular health in adulthood, these studies have recently described the important role for youth lifestyle for later vascular health, provided information on the critical age in youth when risk factor associations with adult vascular health emerge, and have reported on the potential vascular benefits of resolving youth at-risk status in the transition from youth to adulthood. It is these works that we cover in detail in this review. Despite all the achievements from these studies, it is tantalizing that their most important contributions are still to come. That is, once sufficient clinical end points accrue so that analyses linking early life health to hard outcomes can be performed. These studies are a commodity and an invaluable resource that, with minimal re-investment, will provide increasing returns on cardiovascular health into the future.