已有研究~([1-2])表明,孕妇在妊娠期承受压力会对自身及其子代的心理和身体健康状况产生影响,产后抑郁、妊娠并发症以及早产儿及低出生体重儿等多种不良妊娠结局的发生均与母亲在妊娠期间的压力有关。对妊娠期压力(Prenatal Maternal Stress,PMS)的认识尚在不断深化中。自20世纪80年代至今,妊娠期压力理论经历了压力源理论、认知压力理论和现 Previous studies (1-2) show that pregnant women undergoing stress during pregnancy can have an impact on their own and their offspring’s mental and physical health, postpartum depression, pregnancy complications, and premature and low birth weight infants A variety of adverse pregnancy outcomes are related to the mother’s stress during pregnancy. Understanding of Prenatal Maternal Stress (PMS) is still evolving. Since the 1980s, the theory of stress during pregnancy has experienced stressor theory, cognitive stress theory and present