Paper short abstract:

To determine the relationship between maternal preconception health status and the risk of low birth weight.

Paper long abstract:

To determine the relationship between maternal preconception health status and the risk of low birth weight. Methods: A cohort was set up from 2010 to 2011. The couples who are preparing to get pregnant were provided a free medical examination. The information of pregnancy and delivery results was collected in the following 2 years. The couples who had a successful pregnancy in the following 6 months were selected as our research population. The logistic regression was used to measure the relationship between the maternal health status and the risk of low birth weight which is defined as birth weight lower than 2500g. Results: 185092 mothers were selected as our research population. Maternal body mass index (RR=0.97), taking folic acid supplements (RR=0.58), good preparation for pregnancy (RR=0.68) could lower the risk of LBW, on the contrary, heavy pressure of work (RR=1.11) could increase the risk. Conclusion: Maternal health status could affect the risk of low birth weight. Maternal nutrition and the mental health should be taken more attention in preconception care.