Table 2b. Comparison at different thresholds between clinical and imaging grades.

Cutoff	κ	Sensitivity	CI	Specificity	CI	LR+	CI	LR−	CI
Proliferative vs non-proliferative	0.617	0.73	0.65–0.79	0.96	0.95–0.97	18.21	14.23–23.30	0.29	0.22–0.37
Non-STDR vs sight threatening DR	0.476	0.84	0.81–0.87	0.69	0.67–0.72	2.75	2.52–2.99	0.23	0.19–0.28
CSMO vs no CSMO	0.440	0.64	0.57–0.71	0.90	0.89–0.92	6.89	5.78–8.22	0.39	0.33–0.48
Any maculopathy vs no maculopathy	0.440	0.72	0.68–0.76	0.78	0.76–0.80	3.24	2.91–3.60	0.36	0.32–0.42

Abbreviations: CI, confidence interval; LR+ and LR−, positive and negative likelihood ratios.

N=1975 for retinopathy; N=2110 for maculopathy.