Adherence to healthful dietary patterns is associated with lower body mass index (BMI) in adults; however, whether maternal diet quality during peripregnancy is related to a lower overweight risk in the offspring remains to be elucidated. We investigated the associations between the Alternate Healthy Eating Index (AHEI), Alternate Mediterranean Diet (aMED) and Dietary Approach to Stop Hypertension (DASH) during peripregnancy and offspring weight outcomes in a study including 2729 mother-child pairs from the Nurses' Health Study II and offspring cohort Growing Up Today Study II. Children, 12-14 years at baseline were 21-23 years at the last follow-up. Overweight or obesity was defined according to International Obesity Task Force (< 18 years) and World-Health-Organization guidelines (18 + years). Maternal dietary patterns were calculated from food frequency questionnaires. Log-binomial models were used to estimate relative risks (RR) and 95% confidence intervals. In models adjusted for sex, gestational age at delivery and maternal total energy intake, greater maternal adherence to aMED and DASH, but not AHEI, was associated with lower overweight risk in the offspring (RRQ5 vs Q1 = 0.82 [0.70-0.97] for aMED and 0.86 [0.72-1.04] for DASH, P for trend < 0.05 for both). After additional adjustment for maternal pre-pregnancy lifestyle factors and socio-demographic characteristic, none of the diet quality scores were significantly associated with offspring overweight risk. Maternal pre-pregnancy BMI did not modify any of these associations. In this population of generally well-nourished women, maternal healthful dietary patterns during the period surrounding pregnancy were not independently associated with offspring overweight risk at ages 12-23 years.

中文翻译：

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孕期孕妇的健康饮食习惯及其后代的长期超重风险。

坚持健康的饮食习惯会降低成人的体重指数（BMI）。然而，孕期孕产妇的饮食质量是否与后代超重风险降低有关尚待阐明。在一项包括护士健康研究中的2729对母子对的研究中，我们调查了围孕期和后代体重结局之间的替代健康饮食指数（AHEI），替代地中海饮食（aMED）和饮食控制高血压（DASH）之间的关联。 II和后代队列“今天成长”研究II。基线时12-14岁的儿童在最后一次随访中为21-23岁。根据国际肥胖特别工作组（<18岁）和世界卫生组织准则（18岁以上）定义超重或肥胖。从食物频率问卷中计算出孕妇的饮食模式。对数二项式模型用于估计相对风险（RR）和95％置信区间。在针对性别，分娩胎龄和母体总能量摄入进行调整的模型中，母体对aMED和DASH的依从性更高，但对AHEI的依从性不高，其后代的超重风险较低（aMED的RRQ5 vs Q1 = 0.82 [0.70-0.97]） DASH为0.86 [0.72-1.04]，趋势P均<0.05。在对孕妇的孕前生活方式因素和社会人口统计学特征进行额外调整后，所有饮食质量得分均与子代超重风险没有显着相关。孕前孕妇的BMI没有改变任何这些关联。在这个通常营养丰富的女性人口中，