The results suggest the need among women with common risk factors for preterm birth or LBW infants for effective targeted services and programs such as intense prenatal cares.

• 本研究数据建议应针对同时具有早产与低出生体重危险因素的高危险群孕妇进行更为积极有效的介入工作，例如更为密集的产前照护。