目的 探究产妇母乳喂养动机现状及影响因素，为制订干预措施提供依据。 方法 便利抽样法选取在怀化市2所三级甲等医院产科分娩住院的406对产妇及其配偶，采用母乳喂养动机量表、母乳喂养知识量表、父亲支持母乳喂养自我效能量表、爱丁堡产后抑郁量表对其进行调查。采用随机森林模型和LASSO回归方法探讨产妇母乳喂养动机的影响因素。 结果 产妇母乳喂养动机水平为（63.19±14.18）分。父亲支持母乳喂养自我效能、母乳喂养知识、产后抑郁水平、妊娠并发症、家庭人均月收入是母乳喂养动机的影响因素（均P＜0.05），共解释51.5%的变异量，其中父亲支持母乳喂养自我效能为首要因素。 结论 产妇母乳喂养动机水平处于中等偏上水平，可结合本模型制订护理措施以提高产妇母乳喂养动机，延长母乳喂养时间。

Objective To explore the status quo and influencing factors of maternal breastfeeding motivation,and to provide basis for enacting intervention measures.Methods A total of 406 pregnant women and their spouses who were hospitalized for childbirth in two tertiary A hospitals in Huaihua were selected by convenience sampling method and investigated by breastfeeding motivation scale,breastfeeding knowledge scale,father support breastfeeding self-efficacy and Edinburgh postpartum depression scale.The random forest model and LASSO regression method were used to analyze the influencing factors of maternal breastfeeding motivation.Results The motivation level of maternal breastfeeding was (63.19±14.18).Fathers’ self-efficacy in supporting breastfeeding,knowledge of breastfeeding,level of postpartum depression,pregnancy complications and per capita monthly family income were the influencing factors of breastfeeding motivation (all P＜0.05),accounting for 51.5% of the variance,among which the first one was the primary factor.Conclusions Maternal motivation for breastfeeding is above the medium level.Measures for nursing can be developed according to this model to improve the motivation and prolong the time of breastfeeding.

R473.71

湖南省卫生健康委科研计划课题（W20243289）