<b>Social support and parity affect the longitudinal trajectory of maternal bonding</b>

Participants completed the Maternal Antenatal Attachment Scale (MAAS) and the Perceived Social Support Scale at 5 time points during pregnancy (at 9, 12, 16, 24, and 33 gestational weeks). Linear mixed effects models were used to test whether the MAAS scores changed across pregnancy, and to examine parity, fetal sex, and social support as moderators of the effect of gestational timepoint on MAAS scores. Models were adjusted for maternal age, educational level, marital status, family income, planned pregnancy, miscarriage or abortion in previous pregnancy, and depressive symptoms.

研究参与者于孕期5个时间点完成母性产前依恋量表（Maternal Antenatal Attachment Scale，MAAS）与领悟社会支持量表（Perceived Social Support Scale）的测评，具体测评孕周为9、12、16、24及33周。本研究采用线性混合效应模型，检验MAAS得分在整个孕期的变化趋势，并探讨产次、胎儿性别及社会支持在孕周对MAAS得分的影响中所起的调节作用。所有模型均对产妇年龄、受教育程度、婚姻状况、家庭收入、妊娠计划情况、既往流产/引产史及抑郁症状进行了协变量调整。