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J Am Diet Assoc. 2001 Feb;101(2):216-22.

Validity of a telephone-administered 24-hour dietary recall in telephone and non-telephone households in the rural Lower Mississippi Delta region.

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  • 1Delta NIRI, Three Financial Centre, 900 S. Shackleford, Ste. 200, Little Rock, AR 72211, USA.

Abstract

OBJECTIVE:

To determine if 24-hour dietary recall data are influenced by whether data are collected by telephone or face-to-face interviews in telephone and non-telephone households.

DESIGN:

Dual sampling frame of telephone and non-telephone households. In telephone households, participants completed a 24-hour dietary recall either by face-to-face interview or telephone interview. In non-telephone households, participants completed a 24-hour dietary recall either by face-to-face interview or by using a cellular telephone provided by a field interviewer.

SUBJECTS/SETTING:

Four hundred nine participants from the rural Delta region of Arkansas, Louisiana, and Mississippi.

MAIN OUTCOME MEASURES:

Mean energy and protein intakes.

STATISTICAL ANALYSES PERFORMED:

Comparison of telephone and non-telephone households, controlling for type of interview, and comparison of telephone and face-to-face interviews in each household type using unpaired t tests and linear regression, adjusting for gender, age, and body mass index.

RESULTS:

Mean differences between telephone and face-to-face interviews for telephone households were -171 kcal (P = 0.1) and -6.9 g protein (P = 0.2), and for non-telephone households -143 kcal (P = 0.6) and 0.4 g protein (P = 1.0). Mean differences between telephone and non-telephone households for telephone interviews were 0 kcal (P = 1.0) and -0.9 g protein (P = 0.9), and for face-to-face interviews 28 kcal (P = 0.9) and 6.4 g protein (P = 0.5). Findings persisted when adjusted for gender, age, and body mass index. No statistically significant differences were detected for mean energy or protein intake between telephone and face-to-face interviews or between telephone and non-telephone households.

APPLICATIONS/CONCLUSIONS:

These data provide support that telephone surveys adequately describe energy and protein intakes for a rural, low-income population.

PMID:
11271695
[PubMed - indexed for MEDLINE]
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