Lisa B. Litin

TL;DR: The authors assessed the reproducibility and validity of an expanded 131-item semiquantitative food frequency questionnaire used in a prospective study among 51,529 men and found that it provides a useful measure of intake for many nutrients over a one-year period.

TL;DR: The foods most often overreported were fruits and vegetables, and meats and dairy products were most often underreported, as previously observed in women.

TL;DR: The moderate degree of measurement error for the ratio of self-reported waist and hip circumferences implies that previously reported associations based on self-report of these measures may have been appreciably underestimated.

TL;DR: The data suggest that a simple self-administered questionnaire can provide useful estimates of alcohol intake over an extended period of time in subjects participating in prospective epidemiologic studies.

TL;DR: Investigation of diet and other factors with the plasma concentrations of carotenoids, retinol and tocopherols in a sample of 121 men and 186 women participating in two prospective investigations of dietary etiologies of chronic diseases found total vitamin E intake was positively associated with vitamin E supplements and inversely associated with gamma-tocopherol.