Table 2.

Maternal bone mineral density (BMD) and Z-scores at femoral neck at first and third trimester of pregnancy

	First trimester	Third trimester	Percentage ∆	P
BMD (g/cm2)	0.723 ± 0.069	0.709 ± 0.069	− 1.9 ± 0.6%	< 0.001
Z-score	− 1.0 ± 0.6	− 1.1 ± 0.6		< 0.001

Data are given as mean ± standard deviation