期刊
BMJ OPEN
卷 7, 期 11, 页码 -出版社
BMJ PUBLISHING GROUP
DOI: 10.1136/bmjopen-2017-017753
关键词
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资金
- Canadian Institute for Health Research (CIHR) Grant in Food & Health Population Health Research grant [RFA] [201301FH6]
- CIHR RCT Fellowship grant [MTP201410]
- ICMR /CIHR [INC-109205]
- HSF Canada Grant in Aid [NA7283]
- CIHR [AEC85761]
- AllerGen NCE Inc.
- CHILD Study
- CIHR
- HSF Canada
- South Asian Network Supporting Awareness and Research (SANSAR)
Objective Birth weight is an indicator of newborn health and a strong predictor of health outcomes in later life. Significant variation in diet during pregnancy between ethnic groups in high-income countries provides an ideal opportunity to investigate the influence of maternal diet on birth weight. Setting Four multiethnic birth cohorts based in Canada (the NutriGen Alliance). Participants 3997 full-term mother-infant pairs of diverse ethnic groups who had principal component analysis-derived diet pattern scores-plant-based, Western and health-conscious-and birth weight data. Results No associations were identified between the Western and health-conscious diet patterns and birth weight; however, the plant-based dietary pattern was inversely associated with birth weight (beta=-67.6 g per 1-unit increase; P<0.001), and an interaction with non-white ethnicity and birth weight was observed. Ethnically stratified analyses demonstrated that among white Europeans, maternal consumption of a plant-based diet associated with lower birth weight (beta=-65.9 g per 1-unit increase; P<0.001), increased risk of small-for-gestational age (SGA; OR=1.46; 95% CI 1.08 to 1.54; P=0.005) and reduced risk of large-for-gestational age (LGA; OR=0.71; 95% CI 0.53 to 0.95; P=0.02). Among South Asians, maternal consumption of a plant-based diet associated with a higher birth weight (beta=+40.5 g per 1-unit increase; P=0.01), partially explained by cooked vegetable consumption. Conclusions Maternal consumption of a plant-based diet during pregnancy is associated with birth weight. Among white Europeans, a plant-based diet is associated with lower birth weight, reduced odds of an infant born LGA and increased odds of SGA, whereas among South Asians living in Canada, a plant-based diet is associated with increased birth weight.
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