. Author manuscript; available in PMC: 2015 Oct 1.

Published in final edited form as: Ophthalmology. 2015 Jul 16;122(10):2038–2043. doi: 10.1016/j.ophtha.2015.06.011

Table 3.

Sensitivity, Specificity, and Kappa for Any Diabetic Retinopathy and Vision-Threatening Diabetic Retinopathy

		Diabetic Retinopathy			Vision-Threatening Diabetic Retinopathy
Camera	Estimate Type	Sensitivity (95% CI)	Specificity (95% CI)	Kappa (95% CI)	Sensitivity (95% CI)	Specificity (95% CI)	Kappa (95% CI)
Nonmydriatic	Raw	81 (75–86)	94 (92–96)	0.76 (0.71–0.82)	54 (40–67)	99 (98–100)	64 (52–76)
	Correlated	84 (76–91)	96 (93–98)		52 (33–71)	98 (97–100)
IPhone (Apple Inc., Cupertino, CA)	Raw	50 (43–56)	94 (92–97)	0.48 (0.41–0.56)	59 (46–72)	100 (99–100)	71 (60–82)
	Correlated	51 (41–61)	93 (89–96)		56 (36–74)	100 (99–100)

CI = confidence interval.