The cohort study of child support and growth environment factors related to growth and development of low birth weight infants.

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We gathered participation assentors from 2012 and started a survey with the approval of 931 people sequentially from mid-pregnancy by 2014.To date it is during a collection of assay in data until one year after birth.The smoking of the pregnant woman tended to be higher than the smoking rate of general women.The smoking cessation of women was related to the smoking status of the husband.The smoking men significantly had low rate to be pleased with pregnancy detection (P <0.05).Smoking women were significantly low in the family function (family APGAR) (P <0.05).A child born was 452 people now, and, as for the mean birth weight, as for 3010.5+-429.7 g, the premature baby (2500g, less than), 8.6%, the very low birth weight infant (1500g, less than) were 1.1%.