. Author manuscript; available in PMC: 2009 Mar 11.

Published in final edited form as: Am J Ophthalmol. 2008 Jul 17;146(3):417–426. doi: 10.1016/j.ajo.2008.05.018

Table 2.

Average macular retinal thickness of dystrophy patients and normal subjects

Group name	macular IRL(μ)	macular ORL(μ)	macular RT(μ)
normal	109.9±6.4	182.9±4.7	292.8±8.1
dystrophy	98.0 ±20.6	101.1±18.8	199.1±32.7
p-value	0.065	<0.001	<0.001
95% CI of difference in means.	-29.7 ,5.8	-97.8 ,-65.7	-121.7,-65.8
FD(95% CI)	-0.11(-0.27, 0.05 )	-0.45(-0.53, -0.36)	-0.32(-0.42, -0.22)
Standardized deviation (95% CI)	-1.87 (-4.65, 0.91 )	-17.28(-20.68, -13.89)	-11.52(-14.95, -8.08 )

Macular averages are computed in the central 5-mm diameter area.cRT: Central retinal thickness

macular IRL: macular inner retina layer thickness

macular ORL: macular outer retina layer thickness

macular RT: macular retinal thickness

FD: Fractional Deviation

CI =confidential interval