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J Am Diet Assoc. 2000 Oct;100(10):1172-7; quiz 1155-6.

Comparison of the effectiveness of a telephone 24-hour dietary recall method vs an in-person method among urban African-American women.

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  • 1Johns Hopkins Center for Health Promotion, Baltimore, MD 21205, USA.

Abstract

OBJECTIVE:

To examine the comparative accuracy of telephone and in-person 24-hour dietary recall methods.

SUBJECTS:

One hundred eighty-five African-American females, aged 40 years and older, recruited from Sunday church services in Baltimore City, Md.

METHODS:

Participants were trained to estimate portion size with plastic food models and a 2-dimensional food recall booklet. Dietary intake was then assessed with 2 in-person 24-hour dietary recalls and 1 telephone 24-hour dietary recall, all using a computer-assisted, multiple pass approach. Results from the 2 in-person recalls were averaged and compared with the results from the telephone recall.

STATISTICAL ANALYSES:

Cross-tabulation, paired t test, Pearson's correlation, chance-corrected agreement, and stepwise linear regression analyses were performed.

RESULTS:

There were no significant differences between the telephone and in-person methods for any nutrient. Agreement between methods was moderate for all major dietary components, with corrected correlations between methods ranging from 0.26 to 0.97 (P<.001), and kappas ranging from 0.155 to 0.372 (P<.01). Levels of low-energy reporting were high (88% telephone, 91% in-person), though there were no significant differences between methods.

CONCLUSIONS:

The telephone 24-hour dietary recall method appears to be comparable to the standard in-person method among older African-American women. Portion-size training in person may make subsequent telephone dietary recalls acceptable in this population.

PMID:
11043702
[PubMed - indexed for MEDLINE]
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