Comparison of two instruments for quantifying intake of vitamin and mineral supplements: a brief questionnaire versus three 24-hour recalls.

Murphy, Suzanne P

Comparison of two instruments for quantifying intake of vitamin and mineral supplements: a brief questionnaire versus three 24-hour recalls. [electronic resource] - American journal of epidemiology Oct 2002 - 669-75 p. digital

Publication Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.

0002-9262

10.1093/aje/kwf097 doi


Aged
Chi-Square Distribution
Dietary Supplements--statistics & numerical data
Epidemiologic Methods
Female
Humans
Male
Mental Recall
Middle Aged
Minerals--administration & dosage
Self Medication
Surveys and Questionnaires
Vitamins--administration & dosage