TY - JOUR
T1 - Bone mineral density in gravida
T2 - Effect of pregnancies and breast-feeding in women of differing ages and parity
AU - Lebel, Ehud
AU - Mishukov, Yuri
AU - Babchenko, Liana
AU - Samueloff, Arnon
AU - Zimran, Ari
AU - Elstein, Deborah
N1 - Publisher Copyright:
© 2014 Ehud Lebel et al.
PY - 2014
Y1 - 2014
N2 - Changes of bone during pregnancy and during lactation evaluated by bone mineral density (BMD) may have implications for risk of osteoporosis and fractures. We studied BMD in women of differing ages, parity, and lactation histories immediately postpartum for BMD, T -scores, and Z -scores. Institutional Review Board approval was received. All women while still in hospital postpartum were asked to participate. BMD was performed by dual-energy X-ray absorptiometry (DXA) machine at femoral neck (FN) and lumbar spine (LS) by a single technician. Of 132 participants, 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 LS scores, but all means were within the normal limits. Mean LS 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 women with BMD parameters assessed by DXA within two days postpartum, mean T -scores and Z -scores at both the LS 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).
AB - Changes of bone during pregnancy and during lactation evaluated by bone mineral density (BMD) may have implications for risk of osteoporosis and fractures. We studied BMD in women of differing ages, parity, and lactation histories immediately postpartum for BMD, T -scores, and Z -scores. Institutional Review Board approval was received. All women while still in hospital postpartum were asked to participate. BMD was performed by dual-energy X-ray absorptiometry (DXA) machine at femoral neck (FN) and lumbar spine (LS) by a single technician. Of 132 participants, 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 LS scores, but all means were within the normal limits. Mean LS 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 women with BMD parameters assessed by DXA within two days postpartum, mean T -scores and Z -scores at both the LS 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).
UR - http://www.scopus.com/inward/record.url?scp=84918832926&partnerID=8YFLogxK
U2 - 10.1155/2014/897182
DO - 10.1155/2014/897182
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AN - SCOPUS:84918832926
SN - 2090-8059
VL - 2014
JO - Journal of Osteoporosis
JF - Journal of Osteoporosis
M1 - 897182
ER -