Table 3.

Group mean PCD values and 95% confidence intervals measured at each annulus.

	Mean PCD % (95% Confidence Interval)
Annulus	Control	NoDR	NPDR	PDR
200-µm	33.6 (32.4–34.9)	36.6 (35.5–37.8)	29.8 (28.2–31.4)	30.1 (28.8–31.4)
400-µm	41.0 (39.9–42.1)	42.4 (41.5–43.2)	33.9 (32.3–35.4)	32.1 (30.5–33.7)
600-µm	42.8 (41.6–43.9)	44.0 (43.2–44.9)	36.5 (34.9–38.2)	34.5 (32.8–36.2)
800-µm	43.1 (41.8–44.3)	44.3 (43.4–45.2)	37.1 (35.4–38.9)	35.0 (33.4–36.6)
1000-µm	42.7 (41.2–44.1)	44.2 (43.3–45.1)	37.1 (35.2–39.1)	35.0 (33.3–36.6)
1200-µm	42.5 (41.0–43.9)	43.8 (42.7–44.9)	37.1 (35.1–39.1)	34.5 (32.5–36.4)
1400-µm	41.6 (40.1–43.1)	43.6 (42.5–44.8)	36.7 (34.4–38.9)	33.6 (31.4–35.7)