Bone mineral density in gravida: effect of pregnancies and breast-feeding in XXXX of differing ages and parity.

@entity1 @entity3570 @entity174 @entity170 @entity79
Changes of bone during pregnancy and during lactation evaluated by @entity79 ( @entity79 ) may have implications for risk of @entity170 and @entity174 . We studied @entity79 in @entity1 of differing ages, parity, and lactation histories immediately postpartum for @entity79 , T-scores, and Z-scores. Institutional Review Board approval was received. All @entity1 while still in hospital postpartum were asked to participate. @entity79 was performed by dual-energy X-ray absorptiometry (DXA) machine at femoral neck (FN) and @entity3570 ( @entity3570 ) by a single technician. Of 132 @entity1 , 73 (55.3%) were  <=30 years; 27 (20.5%) were primiparous; 36 (27.3%) were grand multiparous; 35 (26.5%) never breast fed. Mean FN T-scores and Z-scores were higher than respective mean @entity3570 scores, but all means were within the normal limits. Mean @entity3570 T-scores and Z-scores were highest in the grand multiparas. There were only 2 (1.5%) outliers with low Z-scores. We conclude that, in a large cohort of Israeli @entity1 with @entity79 parameters assessed by DXA within two days postpartum, mean T-scores and Z-scores at both the @entity3570 and FN were within normal limits regardless of age (20-46 years), parity (1-13 viable births), and history of either no or prolonged months of lactation (up to 11.25 years).
