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Int J Obes (Lond). 2011 Apr;35 Suppl 1:S52-60. doi: 10.1038/ijo.2011.35.

Repeatability of maternal report on prenatal, perinatal and early postnatal factors: findings from the IDEFICS parental questionnaire.

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1
Department of Epidemiological Methods and Etiologic Research, Bremen Institute for Prevention Research and Social Medicine, University of Bremen, Germany.

Abstract

OBJECTIVE:

To investigate the repeatability of maternal self-reported prenatal, perinatal and early postnatal factors within the IDEFICS (Identification and prevention of dietary- and lifestyle-induced health effects in children and infants) study.

DESIGN:

Data are from the baseline survey of the longitudinal cohort study IDEFICS in eight European countries.

SUBJECTS:

A total of 420 parents from eight countries (43-61 per country) were asked to complete the parental questionnaire (PQ) twice at least 1 month apart.

MEASUREMENTS:

The PQ assesses prenatal (maternal weight gain), perinatal (child's birth weight and length, Caesarean (C)-section, week of delivery) and early postnatal factors (exclusive breastfeeding, breastfeeding, introduction of solid food). Intra-class correlation coefficients (ICCs) were calculated to compare maternal reports on prenatal, perinatal and early postnatal factors between the first and second PQ.

RESULTS:

In total, 249 data sets were considered for the analyses. Overall, maternal reports for prenatal and perinatal factors showed higher repeatability (ICC=0.81-1.00, P≤0.05 for all) than those for early infant nutrition (ICC=0.33-0.88, P≤0.05 for all). Perfect agreement was found for parental reports on C-section (ICC(all)=1.00, P≤0.05). There was stronger agreement for duration of breastfeeding (ICC=0.71, P≤0.05) compared with exclusive breastfeeding (ICC=0.33, P≤0.05). Maternal reports showed moderate correlation for the introduction of several types of food (cereals ICC=0.64, P≤0.05; fruits ICC=0.70, P≤0.05; meat ICC=0.83, P≤0.05; vegetables ICC=0.75, P≤0.05), and high correlation (ICC=0.88, P≤0.05) for cow's milk.

CONCLUSION:

Maternal reports on pregnancy and birth were highly reproducible, but parental recall of early infant nutrition was weaker and should be interpreted more cautiously.

PMID:
21483423
DOI:
10.1038/ijo.2011.35
[Indexed for MEDLINE]

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