Listeria monocytogenes and diet during pregnancy; Balancing nutrient intake adequacy v. adverse pregnancy outcomes

1School of Health Sciences, Faculty of Health, The University of Newcastle, HA12 Hunter Building, Callaghan, NSW 2308, Australia.
Public Health Nutrition (Impact Factor: 2.68). 03/2012; 15(12):1-8. DOI: 10.1017/S1368980012000717
Source: PubMed


OBJECTIVE: To evaluate the impact of adherence to public health recommendations on Listeria monocytogenes food safety to limit exposure to potential food sources on micronutrient intakes of pregnant women and whether more frequent consumption of 'high-risk' foods increases risk for adverse pregnancy outcomes. DESIGN: A cohort study in women assessing Listeria exposure from an FFQ based on consumption of potential Listeria-containing food sources, the Listeria Food Exposure Score (LFES). Pregnancy status was defined as pregnant, trying to conceive, had a baby within the previous 12 months, or other. Nutrient intakes were compared with Nutrient Reference Values and self-reported pregnancy outcome history three years later. SETTING: Australia. SUBJECTS: Women aged 25-30 years (n 7486) participating in the Australian Longitudinal Study on Women's Health. RESULTS: There were weak positive correlations (r = 0·13-0·37, P < 0·001) between LFES and all nutrients, with fibre, folate, Fe and vitamin E intakes consistently below the Nutrient Reference Values in every quintile of LFES. Women in the highest quintile of LFES reported 19 % more miscarriages (rate ratio = 1·19; 95 % CI 1·02, 1·38) than those in the lowest quintile, after adjusting for important confounding factors. CONCLUSIONS: More frequent consumption of foods potentially containing L. monocytogenes is associated with higher nutrient intakes, but an increased risk of miscarriage. L. monocytogenes pregnancy recommendations require review and should include the list of 'risky' food items in addition to low-risk alternatives that would adequately replace nutrient intakes which may be reduced through avoidance strategies.

Download full-text


Available from: A. J. Hure, Mar 11, 2014
  • [Show abstract] [Hide abstract]
    ABSTRACT: This essay takes J. Edward Chamberlin’s belief in the formative power of story as a starting point in order to examine the role of public health narratives and their effect on daily bodily practices and experiences. Refiguring the notion of home and homeland to include the body as home, the author explores the fear of listeria infection in pregnancy as an instance where public health narratives shape embodied experiences of the world. Ultimately, the author argues that predictive public health stories create their own state of “pathology” in which the management of health is “responsibilized” and consequently experienced as anxiety, guilt, and hyper-vigilance. This state, the author contends, is inherently linked to the political force of neo-liberalism, in which personal responsibility usurps collective or communitarian responses. Le présent article utilise la conviction de J. Edward Chamberlin concernant le pouvoir formatif des histoires comme point de départ pour examiner le rôle des récits sur la santé publique et leur impact sur les pratiques corporelles et expériences quotidiennes. Réinterprétant les concepts du foyer et du terroir pour inclure le corps comme une demeure, l’auteure examine la peur de la listériose pendant la grossesse et comment un récit sur la santé publique peut orienter les expériences corporelles dans le monde. En dernier lieu, l’auteure allègue que les histoires prédictives sur la santé publique créent leur propre état « pathologique » dans lequel la gestion de la santé est « responsabilisée » et donc ressentie comme de l’anxiété, de la culpabilité et de l’hypervigilance. Cet état, d’après l’auteure, est lié de façon intrinsèque à la force politique du néolibéralisme dans le cadre duquel la responsabilité personnelle l’emporte sur la réponse collective ou communautaire.
    Journal of Canadian Studies 03/2012; 46(2):178-195.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Background:Ensuring adequate dietary intake during pregnancy has important implications for optimising maternal and fetal health. It is not known whether diet quality is altered over pregnancy and the post-partum period.Objective:The aim of this study was to perform a comprehensive assessment of diet quality in overweight and obese women during pregnancy and early post-partum.Design:In a prospective cohort study, n=301 overweight or obese pregnant women completed a food frequency questionnaire at study entry (10-20 weeks gestation), 28 weeks gestation, 36 weeks gestation and 4 months post-partum for assessment of macronutrient and micronutrient intake and diet quality by the Healthy Eating Index (HEI).Results:Energy, macronutrient and dietary sources of micronutrients did not alter across pregnancy or post-partum. The HEI was of below average quality in 31.0% of women at baseline. This decreased from week 28 (P<0.001) and was maintained at a lower level post-partum such that HEI levels were lower compared with study entry (53.3±12.7 versus 56.7±10.1, P<0.001). The HEI decrease occurred in association with decreases in the milk, meat and unsaturated oil components, and increases in the proportion of energy from solid fats, alcohol and added sugars (P<0.001), and was independently predicted by the socioeconomic index for areas score (β=-0.011, s.e.=0.011, P=0.031).Conclusion:We report for the first time that dietary quality decreases across pregnancy and is maintained at this reduced level in the early post-partum period in overweight and obese women. Dietary interventions aimed at improving diet quality should be targeted to early pregnancy and post-partum.International Journal of Obesity advance online publication, 7 August 2012; doi:10.1038/ijo.2012.129.
    International journal of obesity (2005) 08/2012; 2012(5). DOI:10.1038/ijo.2012.129 · 5.00 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Background: A demonstrated link exists between maternal diet and maternal and infant health outcomes during and after pregnancy. A dietetic maternity service (0.6FTE for 3500 births) was introduced in 2012 at our hospital in a socially-disadvantaged area. We needed to develop evidence-based, patient-oriented improvements to nutrition services within resource limitations. Aim: This cross-sectional study gathered knowledge, eating behaviours, and nutrition-related needs of our women ante- and postnatally to inform this process. Methods: Women (≥18 years) admitted to the postnatal ward completed our survey. Data including dietary quality, nutritional knowledge and interest in nutrition education were collected. Analysis included descriptive, chi-squared and t-tests. Findings: Three hundred and nine eligible women responded (28±6 years, 27±7kg/m2 pre-pregnancy body mass index, 12% gestational diabetes). Two-fifths (42%) self-reported gaining excess weight during pregnancy. One quarter reported knowing their gestational weight gain goals, yet only 1.6% was correct. Half reported interest in receiving nutrition education during pregnancy and post-delivery (45%, n=134; 43%, n=123, respectively). Women had poor diet quality (daily serves - fruit: 1.8±1.0; vegetables: 2.0±1.2; dairy: 1.9±1.2), despite identifying healthy eating as a personal priority. Nutrition topics requested included healthy eating for development of baby pre- and post-delivery and maternal weight management. Conclusion: Women attending our hospital have dietary issues and levels of interest in nutrition similar to women in tertiary maternity centres. Service changes planned will explore formats that meet higher and lower education levels; group workshops may be supplemented by formats such as internet and DVD-delivered education to overcome access and literacy issues, respectively.
    Women and Birth 05/2014; 27(3). DOI:10.1016/j.wombi.2014.04.001 · 1.57 Impact Factor
Show more