. Author manuscript; available in PMC: 2011 Jul 1.

Published in final edited form as: Am J Ophthalmol. 2010 May 20;150(1):40–47.e2. doi: 10.1016/j.ajo.2010.01.041

Table 2.

Association between AMD risk factors and Choroidal Blood Volume (ChBVol) and Flow (ChBFlow): Multivariate analysis ^b.

Risk Factors	ChBVol		ChBFlow
Risk Factors	Mean (SE)^c	P-value	Mean (SE)^c	P-value
Age		0.02		0.004
50–60	0.29 (0.03)		9.41 (0.84)
61–70	0.23 (0.01)		7.31 (0.35)
71–80	0.21 (0.01)		6.71 (0.26)
80 +	0.20 (0.01)		6.01 (0.32)
Systemic Hypertension		0.007		0.003
No	0.25 (0.01)		7.97 (0.32)
Yes	0.21 (0.01)		6.94 (0.31)
RPE hypertrophy		0.01		0.04
No	0.25 (0.01)		7.78 (0.32)
Yes	0.22 (0.01)		6.94 (0.31)
Spherical equivalent (D) (as continuous)			−0.21	0.02

The risk factors in the multivariate model include age, systemic hypertension and RPE hypertrophy for ChBVol, and include age, systemic hypertension, RPE hypertrophy, and spherical equivalent for ChBFlow.

ChBVol and ChBFlow are shown in arbitrary units (A.U.).