Relative validity of brief-type self-administered diet history questionnaire among very old Japanese aged 80 years or older.

ABSTRACT:

Objective

Dietary questionnaires for assessing dietary intakes among populations of individuals aged 80 years or older (the very old) are very limited. We examined the relative validity of forty-three nutrients and twenty-seven food groups estimated by a brief-type self-administered diet history questionnaire (BDHQ) targeting very old Japanese, using semi-weighed dietary records (DR) as a reference.

Design

Between June and August 2012 and between June 2015 and February 2016, a three-day non-consecutive DR (at two-week intervals) and a BDHQ were completed.

Setting

Tokyo, the capital prefecture of Japan.

Subjects

Eighty very old Japanese (thirty-six men and forty-four women) aged 82-94 years.

Results

The median intakes of 40-70 % of the crude and energy-ad

SUBMITTER: Kobayashi S 

PROVIDER: S-EPMC6414039 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature