Comparisons of Effective Fields of Two Ultra-Widefield Ophthalmoscopes, Optos 200Tx and Clarus 500

Table 3

Comparison of appearance probability between “O > C” and “O < C” at four retinal quadrants by two raters.

		Appearance probability of “O > C” (95% C.I.)	Appearance probability of “O < C” (95% C.I.)	value
Upper temporal	Rater 1	75.9 (62.4–86.5)	24.1 (13.5–37.6)	<0.001
	Rater 2	72.9 (58.2–84.7)	27.1 (15.3–41.8)	0.002
Lower temporal	Rater 1	55.1 (40.2–69.3)	44.9 (30.7–59.8)	0.568
	Rater 2	53.7 (37.4–69.3)	46.3 (30.7–62.6)	0.755
Upper nasal	Rater 1	52.4 (36.4–68.0)	47.6 (32.0–63.6)	0.878
	Rater 2	57.1 (39.4–73.7)	42.9 (26.3–60.6)	0.500
Lower nasal	Rater 1	26.7 (14.6–41.9)	73.3 (58.1–85.4)	0.002
	Rater 2	28.2 (15.0–44.9)	71.8 (55.1–85.0)	0.009

Statistical comparisons were performed by binomial tests. The results were considered statistically significant when . C.I., confidential interval.