Table 2.

Relationships between trabecular and cortical microarchitectural parameters measured by 2D histomorphometry, μCT, HR-pQCT and areal BMD by DXA

	BV/TV	Tb.N	Tb.Th	Tb.Sp	Ct.Th
2D Hist vs 3D μCT: Iliac Crest	0.873 c	0.613 c	0.825 c	0.719 c	N/A*
HR-pQCT: Radius vs Tibia**	0.758 c	0.516 c	0.357 b	0.509 c	0.578 c
2D Hist Iliac Crest vs HR-pQCT Radius	0.304 a	0.243	0.058	0.264	0.003
2D Hist Iliac Crest vs HR-pQCT Tibia**	0.272	0.198	0.106	0.169	0.360 b
2D Hist Iliac Crest vs LS BMD	0.274 a	0.230	0.130	−0.239	0.254
2D Hist Iliac Crest vs TH BMD	0.306 a	0.214	0.104	−0.194	0.378 b
3D μCT Iliac Crest vs HR-pQCT Radius	0.398 b	0.365 b	0.144	0.522 c	N/A
3D μCT Iliac Crest vs HR-pQCT Tibia**	0.276 a	0.215	0.177	0.339 b	N/A
3D μCT Iliac Crest vs LS BMD	0.352 b	0.303 a	0.156	−0.413 b	N/A
3D μCT Iliac Crest vs TH BMD	0.365 b	0.218	0.247	−0.423 b	N/A

^*N/A: Not available

^**n=54 except for relationships involving HR-pQCT of the tibia where n=52

^aP ≤ 0.05

^bP ≤ 0.01

^cP ≤ 0.0001