Analysis Of Effecting Factors On Women's Bone Mineral Density In Early Postpartum

Objective:To investigate the relationship between bone mineral density of women in the early postpartum with age,BMI,delivery times,menarche time,living habits,breast-feeding duration,time between the two delivery,with or without calcium factors related。Method: 124 pregnant women were selected with birth check and delivery in our hospital from December 2007 to July 2009,of which 60 women who give birth for the first time ,64 women who give birth for the second time。Accurately record all the pregnant women with maternal age,BMI,height,weight,calcium during pregnancy,menarche time, etc. Pregnant women with second delivery were added to record time of previous delivery and breast-feeding time after delivery. Bone mineral density were measured in 3 days after postpartum.Results: Parity,birth interval and breast-feeding duration are important factors to reduce the risk of bone mineral density. The odds ratio on reducing the incidence of bone density is 4.46 on each additional delivery; The odds ratio on reducing the incidence of bone density is 23 when birth interval of more than 4 years compared to less than 4 years; The odds ratio on reducing the incidence of bone density is 7.01. when breastfeeding time longer than 6 months compared to less than 6 months.Conclusion: The changement of bone mineral density in early postpartum of women is relevant to a variety of factors. Parity,time between the two deliveries and breast-feeding duration are risky factors of the reduction on bone mineral density.Especially for those multiple birth, interval of pregnancies in longer than 4 years or breast-feeding duration more than 6 months, maternal bone loss will be more serious.