American Journal of Epidemiology Vol. 154, No. 12 : 1136-1142
Copyright © 2001 by The Johns Hopkins University School of Hygiene and Public Health
NUTRITIONAL EPIDEMIOLOGY |
Recall of Diet during a Past Pregnancy
1 Division of Oncology, Children's Hospital of Philadelphia, Philadelphia, PA.
2 Minnesota Department of Health, St. Paul, MN.
3 Division of Epidemiology, School of Public Health, University of Minnesota, Minneapolis, MN.
4 Community Guide Branch, Division of Prevention Research and Analytic Methods, Epidemiology Program Office, Centers for Disease Control and Prevention, Atlanta, GA.
5 Department of Health and Behavior Studies, Teachers College, Columbia University, New York, NY.
ABSTRACT
The authors conducted a study of women's ability to recall diet during a past pregnancy. For a prospective study, women completed self-administered food frequency questionnaires (FFQs) before and during pregnancy (1989–1992). These women, mostly White and well-educated, were contacted 3–7 years later (1996–1997) for a retrospective dietary assessment performed by either telephone interview (n = 154) or self-administered FFQ (n = 115). Energy-adjusted Pearson correlations ranged from 0.10 to 0.49 for the telephone interview group and from 0.02 to 0.67 for the self-administered questionnaire group. When participants' intakes were ranked, quintile agreement (within one quintile) between original diet and recalled diet ranged from 60% to 69% in the telephone interview group and from 69% to 79% in the self-administered questionnaire group. Correlations and percentages of agreement were higher among women who used the same questionnaire for both dietary assessments than among those who used different questionnaires. These results suggest that diet during pregnancy is recalled with similar accuracy as or perhaps slightly lower accuracy than adult diet generally. This may reflect, in part, the influence of current (nonpregnancy) diet on recall of past (pregnancy) diet. While the results of this study may not be generalizable to those obtained from other populations, to the authors' knowledge it is the first study of recall of diet during pregnancy. Am J Epidemiol 2001;154:1136–42.
diet surveys; pregnancy; recall; reproducibility of results
Abbreviations: FFQ, food frequency questionnaire; SAQ, self-administered questionnaire; SD, standard deviation
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