Schuetze Pamela, Eiden Rina D
Department of Psychology, State University of New York College at Buffalo, 1300 Elmwood Avenue, Buffalo, NY 14222-1095, USA.
Infant Behav Dev. 2006 Jan;29(1):32-43. doi: 10.1016/j.infbeh.2005.07.001. Epub 2005 Jul 25.
This study examined the association between maternal smoking and exposure to environmental tobacco smoke (ETS) during pregnancy and infant heart rate. Participants were 62 mother-infant dyads where mother smoked during pregnancy, 47 dyads where mother did not smoke during pregnancy but was exposed to ETS and 47 dyads where mother did not smoke and was not exposed to ETS. Average heart rate (HR) and respiratory sinus arrhythmia (RSA) were assessed at 2-4 weeks of age during sleep. Infants in both exposure groups had higher HR and lower RSA than nonexposed infants. Furthermore, boys in both exposure groups had higher HR and lower RSA than girls. These results highlight the importance of considering prenatal ETS exposure and infant gender when assessing infant outcomes.
本研究调查了孕期母亲吸烟及接触环境烟草烟雾（ETS）与婴儿心率之间的关联。研究对象为62对母婴，其中母亲在孕期吸烟；47对母婴，母亲孕期不吸烟但接触ETS；47对母婴，母亲既不吸烟也不接触ETS。在婴儿2至4周龄睡眠期间评估平均心率（HR）和呼吸性窦性心律不齐（RSA）。两个暴露组的婴儿心率均高于未暴露婴儿，RSA则低于未暴露婴儿。此外，两个暴露组中的男婴心率均高于女婴，RSA则低于女婴。这些结果凸显了在评估婴儿结局时考虑产前ETS暴露和婴儿性别的重要性。
