【摘要】 目的 探讨妊娠期女性夜食行为核心症状，分析其与产前抑郁的关系，为妊娠期女性夜食行为预防和干预提供依据。方法 选取797例产检孕妇为研究对象，采用爱丁堡产后抑郁量表和夜间饮食问卷开展调查。结果 妊娠期女性产前抑郁得分6.00（3.00, 9.00）,夜间饮食行为得分8.00（11.00, 15.00）。回归分析显示，孕妇产前抑郁情绪显著正向预测夜食行为（P<0.05）。网络分析表明，半夜醒来有吃东西的渴望（r_s=1.29）是夜食行为强度最高的症状，我很不开心以致失眠(r_bs=1.80)是产前抑郁连接夜食行为最重要的桥梁节点。网络比较结果显示，<30岁与≥30岁孕妇的总体网络结构无显著差异，但在≥30岁孕妇中，夜食行为症状网络的局部边线连接更强（r=0.17 vs. 0.04,P<0.05）,在<30岁孕妇中，产前抑郁与夜食行为关系网络的局部边线连接更强（r=0.10 vs.0.02,P<0.05）。结论 妊娠期女性夜食行为水平高于一般人群，核心症状是夜间对食物的渴望。孕妇产前抑郁显著正向预测夜食行为，不开心以致失眠是影响夜食行为的桥梁节点，二者关联存在一定年龄差异。妊娠期女性夜食行为值得关注，防控产前抑郁，尤其是情绪低落所致失眠，可能是潜在干预靶点。更多还原

【Abstract】 Objective To explore the core symptoms of night eating behavior in pregnant women and its relationship with prenatal depression, in order to provide a basis for the prevention and intervention of night eating behavior in this population. Methods A total of 797 pregnant women undergoing prenatal check-ups were selected as research subjects, and data was collected by the Edinburgh Postnatal Depression Scale and Night Eating Questionnaire. Results The scores of prenatal depression scores was（6.09±4.45） and night eating behavior scores was（11.83±5.46）.Regression analysis showed that prenatal depressive moods can significantly positively predict night eating behavior（P<0.05）. Network analysis indicates that "Waking up in the middle of the night with a craving for food"（r_s=1.29） was the most intense symptom in night eating behavior, while "I am so unhappy that I have insomnia"(r_bs=1.80) was the most important bridging node connecting prenatal depression to night eating behavior. The results of the network comparison showed that there was no significant difference in the overall network structure between pregnant women <30 and ≥30 years of age. However, in pregnant women aged ≥30, the local edge connections in the night eating symptom network were stronger（r=0.17, vs.0.04, P<0.05）; whereas in pregnant women <30 years old, the local edge connections in the network relating prenatal depression to night eating behavior were more tightly connected（r=0.10, vs.0.02, P<0.05）. Conclusion The level of night eating behavior in pregnant women is generally higher than that in the general population, with the core symptom manifesting as the craving for food at night. Prenatal depression in pregnant women can significantly positively predict night eating behavior, and "unhappiness leading to insomnia" is a bridging node affecting night eating, with a certain difference in the association between the two in different age groups. Therefore, night eating behavior in pregnant women deserves attention. Preventing and controlling prenatal depression, especially insomnia caused by low mood, may be a potential intervention target for the prevention and intervention of night eating behavior during pregnancy.更多还原