Assessment of a narrative approach to the diet history.
OBJECTIVE
To assess the quality of a narrative form diet history (DH).


METHODS
Reproducibility assessed with data obtained at 6-week intervals. Criterion validity assessed using energy intake to estimated energy expenditure (EI:BMR) cutoff limits. Relative validity assessed by comparing results for energy and macronutrients at baseline and month 2 of an intervention trial with those obtained from 3-day food records (FR).


METHODS
Community-based dietary intervention trials for the study of metabolic syndrome in the Illawarra region of New South Wales, Australia.


METHODS
Reproducibility: 43 healthy female volunteers. Mean age 58.72 years (range 50-67), mean body mass index (BMI) 25.79 (range 21-36).


RESULTS
45 healthy volunteers--18 males (mean age 46.9 years, mean BMI 27.8), and 27 females (mean age 45.7 years, mean BMI 26.2), attending a study on the effect of diet on metabolic variables.


RESULTS
Reproducibility: wide SD values indicated a high degree of intraindividual variation, but correlation coefficients were comparable to those of similar studies.


RESULTS
underreporting was inconsistent with individuals, but was greater with the DH than the FR at each stage of the dietary trial (significant at month 1, P < 0.01). Underreporters indicated higher intakes of protein during the trial (P < 0.05). Weaker associations were found between the DH and FR data for energy values, but there was strong agreement for per cent fat consumed as saturated and monounsaturated fat at each stage of the trial.


CONCLUSIONS
The narrative form DH performs as well as standardized interviews, but more work needs to be done at the micro level, focusing on aspects which deal with foods likely to be underreported in the particular study context. This can be achieved through continued research using combined methodologies.
Tapsell
L C
LC
Department of Biomedical Science, University of Wollongong, NSW, Australia. linda_tapsell@uow.edu.au
Pettengell
K
K
Denmeade
S L
SL
D000368:Aged; D004041:Dietary Fats; D002149:Energy Intake; D005247:Feeding Behavior; D005260:Female; D006801:Humans; D007407:Interviews as Topic; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009749:Nutrition Surveys; D009753:Nutritive Value; D015588:Observer Variation; D011594:Psychometrics / Q000379:methods*; D012044:Regression Analysis; D015203:Reproducibility of Results
D004041:Dietary Fats