Table 6. Baseline Fluorescein Angiography Characteristics by Age (yrs) (428 study eyes from 350 subjects).

	18 - <60	60 - <70	≥70	All
Leakage Source within Grida n(%)	N=133	N=135	N=82	N=350
None	3 (2)	1 (<1)	2 (2)	6 (2)
<33% from Ma	33 (25)	36 (27)	21 (26)	90 (26)
33%-66% from Ma	29 (22)	36 (27)	26 (32)	91 (26)
≥67% from Ma	56 (42)	51 (38)	27 (33)	134 (38)
Can't grade	12 (9)	11 (8)	6 (7)	29 (8)
Fluorescein Leakage (Disc Areas)
Central Subfieldb	N=149	N=148	N=97	N=394
Median (25th, 75th percentiles)	0.44 (0.20, 0.44)	0.42 (0.18, 0.44)	0.44 (0.20, 0.44)	0.44 (0.19, 0.44)
[Range]	[0, 0.44]	[0, 0.44]	[0, 0.44]	[0, 0.44]
Inner Zonec	N=150	N=148	N=98	N=396
Median (25th, 75th percentiles)	2.71 (1.54, 3.84)	2.47 (1.15, 3.78)	2.18 (1.40, 3.42)	2.50 (1.34, 3.73)
[Range]	[0, 4.00]	[0, 4.00]	[0, 4.00]	[0, 4.00]
Grid as a wholec	N=150	N=148	N=98	N=396
Median (25th, 75th percentiles)	6.16 (3.45, 11.30)	5.49 (2.59, 9.95)	4.31 (2.37, 7.35)	5.45 (2.86, 9.49)
[Range]	[0, 16.00]	[0, 16.00]	[0, 15.54]	[0, 16.00]
Capillary Closure (Disc Areas)
Central Subfielda,d	N=107	N=96	N=56	N=259
Median (25th, 75th percentiles)	0 (0, 0)	0 (0, 0)	0 (0, 0)	0 (0, 0)
[Range]	[0, 0.27]	[0, 0.28]	[0, 0.18]	[0, 0.28]
Inner Zonea,e	N=110	N=97	N=56	N=263
Median (25th, 75th percentiles)	0 (0, 0.03)	0 (0, 0)	0 (0, 0)	0 (0, 0)
[Range]	[0, 0.61]	[0, 1.88]	[0, 0.28]	[0, 1.88]
Grid as a wholea,f	N=110	N=98	N=56	N=264
Median (25th, 75th percentiles)	0 (0, 0.19)	0 (0, 0.06)	0 (0, 0.04)	0 (0, 0.13)
[Range]	[0, 1.57]	[0, 4.00]	[0, 0.69]	[0, 4.00]

^aFor 78 subjects with 2 study eyes, only the eye imaged during the fluorescein dye transit was evaluated.

^bUngradable for 34 eyes.

^cUngradable for 32 eyes.

^dUngradable for 91 eyes.

^eUngradable for 87 eyes.

^fUngradable for 86 eyes.