Continuing Access to Harvard Longitudinal Survey Data

Cross-sectional data sets, such as derived from the National Health and Nutritional Examination Survey (NHANES), are readily available at no cost over the web, and analyses of such data sets can help suggest potential associations between dietary intake exposures and health outcomes. However, because cross- sectional surveys collect exposure and outcome data at the very same point in time, they cannot help us understand if exposures through routine dietary intake and other e…