Table 3.

Correlation of EPC populations with age, BMI, and bone mass.

	Age	BMI	C	C1	C2	C3	C4	L1–4	FN	Total
Age	1	−0.400^*	−0.308	−0.594	0.211	0.335	−0.090	−0.482	−0.946^**	−0.945^**
BMI		1	−0.129	0.125	0.205	−0.224	−0.126	−0.038	0.368	0.273^*
C			1	0.217^*	0.452^*	0.044^*	0.115	0.341	0.550	0.755
C1				1	−0.290^*	−0.528	−0.530^*	0.229	0.847^*	0.925^**
C2					1	−0.274	0.209	−0.192	−0.710	−0.817^*
C3						1	0.282	−0.194	−0.684	−0.694
C4							1	−0.039	−0.571	−0.665
L1–4								1	0.693	0.504
FN									1	0.931^**
Total										1

Significant data are in bold face.
↵* Correlation is significant at the 0.05 level (2-tailed).
↵** Correlation is significant at the 0.01 level (2-tailed). BMI: body mass index; C = CD34+ cells; C1 = CD34+CD133–KDR+ cells; C2 = CD34+CD133+KDR+ cells; C3 = CD34+/CD133−/KDR− cells; C4 = CD34+/CD133+/KDR− cells; EPC: endothelial progenitor cells; L1–4: BMD of lumbar spine 1–4; BMD: bone mineral density; FN: BMD of femur neck; Total: BMD of total hip.