Abstract
Objective To investigate factors associated with maternal diet during pregnancy and rank these in order of influence using data from a prospective cohort of 196 pregnant women, aged between 18 and 35 years of mostly European origin. Methods Anthropometric measurements were taken, questionnaires administered and 16 days of weighed diet intakes recorded, eight in the fourth and eight in the seventh month of pregnancy. Twenty four hours activity records were kept for 3 days at these times. Factors investigated were education, age, occupational status, welfare dependence, smoking, number of children, morning sickness, activity level, height, weight, body mass index, and sum of skinfolds. Results Univariate analyses showed median weight of food and nutrient intakes were significantly lower in the less educated, the young, welfare dependants, smokers, and those who vomited during pregnancy. Almost all subjects had intakes of Vitamin D, folate, iron, and selenium below the estimated average requirement. Multivariate analyses of each nutrient against all predictors showed that in decreasing order of importance, education, maternal height, welfare dependence, smoking, and morning sickness had the greatest overall effect on the women’s diets, mostly through their influence on energy intake. Age and number of children had less association with nutrient intake but along with education had a strong association with energy adjusted quality of diet. Weight and activity had weak associations with the quantity and quality of intake. After adjusting for energy intake, morning sickness ceased to be relevant. Conclusion To maximize effectiveness, education, welfare dependence, smoking, morning sickness, age, and parity are important factors to consider when attempting to change maternal diet during pregnancy.
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Acknowledgments
The authors wish to thank the New Zealand Ministry of Health, the New Zealand Lottery Science Board, the Palmerston North Medical Research Foundation and the Massey University Research Fund Committee for their financial support, Mrs Judy Matheson and Mrs Vicki Clarke for their assistance as data collectors, the data entry team, and most of all the subjects who gave willingly of their time.
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Watson, P.E., McDonald, B.W. Major Influences on Nutrient Intake in Pregnant New Zealand Women. Matern Child Health J 13, 695–706 (2009). https://doi.org/10.1007/s10995-008-0405-6
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DOI: https://doi.org/10.1007/s10995-008-0405-6