Ooi Kee June, Fenton Sasha, Taylor Rachael, Hutchesson Melinda J, Hinwood Madeleine, Collins Clare
School of Health Sciences, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, Australia.
Food and Nutrition Research Program, Hunter Medical Research Institute (HMRI), New Lambton Heights, Australia.
J Hum Nutr Diet. 2025 Apr;38(2):e70032. doi: 10.1111/jhn.70032.
Research conducted over two decades ago indicated that more frequent consumption of foods potentially harbouring Listeria monocytogenes is associated with higher nutrient intakes but also higher risk of miscarriage. However, the influence of potential exposure to Listeria monocytogenes on pregnant women's diet quality is yet to be examined. Additionally, advancements in agricultural practices and food consumption trends in recent years may have led to changes in pregnant women's dietary intake. Therefore, the present study aimed to evaluate the associations between potential L. monocytogenes exposure and dietary quality, and dietary intake in two contemporary cohorts of pregnant women in Australia.
A secondary analysis of two combined pregnancy cohorts of women aged ≥ 19 years with a singleton pregnancy from the Newcastle, New South Wales (n = 441) and Perth, Western Australia (n = 1197) was conducted. Potential L. monocytogenes exposure was estimated by the Listeria Food Exposure Score (LFES), dietary intake was assessed using the Australian Eating Survey and diet quality using the Australian Recommended Food Score. Pearson's correlation and linear regression analyses were performed to estimate the associations between potential L. monocytogenes exposure and dietary quality and intake, with adjustment for potential confounders.
Data from 1638 women (mean [SD] age 32.0 [5.0] years, 57.8% born in Australia) were included. The median (IQR) gestational age was 35 (34-36) weeks and 43.5% of women had no prior pregnancies. A higher LFES (i.e., more frequent consumption of potential food sources of L. monocytogenes) was significantly associated with higher diet quality score (r = 0.60, p < 0.001), higher intakes of nutrient-dense core foods (r = 0.11-0.43, p < 0.001), and higher micronutrient intakes (r = 0.24-0.52, all p < 0.001).
More frequent consumption of foods that potentially harbour Listeria monocytogenes is associated with higher diet quality and nutrient intakes. Further research is needed to identify how to support women to achieve optimal diet quality and nutrient intakes while simultaneously minimising risk of listeriosis.
二十多年前进行的研究表明，更频繁地食用可能携带单核细胞增生李斯特菌的食物与更高的营养摄入量相关，但也与更高的流产风险相关。然而，潜在接触单核细胞增生李斯特菌对孕妇饮食质量的影响尚未得到研究。此外，近年来农业实践和食物消费趋势的进步可能导致了孕妇饮食摄入量的变化。因此，本研究旨在评估澳大利亚两个当代孕妇队列中潜在的单核细胞增生李斯特菌暴露与饮食质量和饮食摄入量之间的关联。
对来自新南威尔士州纽卡斯尔（n = 441）和西澳大利亚州珀斯（n = 1197）的两个年龄≥19岁、单胎妊娠的合并孕妇队列进行了二次分析。通过李斯特菌食物暴露评分（LFES）估计潜在的单核细胞增生李斯特菌暴露，使用澳大利亚饮食调查评估饮食摄入量，并使用澳大利亚推荐食物评分评估饮食质量。进行了Pearson相关性和线性回归分析，以估计潜在的单核细胞增生李斯特菌暴露与饮食质量和摄入量之间的关联，并对潜在的混杂因素进行了调整。
纳入了1638名女性的数据（平均[标准差]年龄32.0[5.0]岁，57.8%出生于澳大利亚）。中位（IQR）孕周为35（34 - 36）周，43.5%的女性既往无妊娠史。较高的LFES（即更频繁地食用单核细胞增生李斯特菌的潜在食物来源）与更高的饮食质量评分显著相关（r = 0.60，p < 0.001），营养丰富的核心食物摄入量更高（r = 0.11 - 0.43，p < 0.001），以及更高的微量营养素摄入量（r = 0.24 - 0.52，所有p < 0.001）。
更频繁地食用可能携带单核细胞增生李斯特菌的食物与更高的饮食质量和营养摄入量相关。需要进一步研究以确定如何支持女性在将李斯特菌病风险降至最低的同时实现最佳饮食质量和营养摄入量。
