Table 3. Interrater agreement of measurement of choroidal area.

	Controls		CSC		CSC-fellow		P-value
	ICC	95% CI	ICC	95% CI	ICC	95% CI
Whole choroid
total area	0.991	(0.983–0.991)	0.984	(0.970–0.985)	0.969	(0.928–0.970)	P<0.01
hypo-reflective area	0.992	(0.985–0.992)	0.985	(0.971–0.985)	0.977	(0.959–0.979)	P<0.01
hyper-reflective area	0.976	(0.956–0.977)	0.952	(0.912–0.954)	0.974	(0.950–0.975)	P<0.01
Inner choroid
total area	0.886	(0.790–0.983)	0.92	(0.840–0.920)	0.916	(0.832–0.922)	P<0.01
hypo-reflective area	0.924	(0.849–0.919)	0.962	(0.930–0.964)	0.954	(0.911–0.953)	P<0.01
hyper-reflective area	0.876	(0.781–0.877)	0.908	(0.815–0.910)	0.912	(0.822–0.922)	P<0.01
Outer choroid
total area	0.99	(0.981–0.994)	0.98	(0.963–0.981)	0.986	(0.988–0.997)	P<0.01
hypo-reflective area	0.992	(0.984–0.992)	0.981	(0.965–0.990)	0.988	(0.922–0.994)	P<0.01
hyper-reflective area	0.971	(0.946–0.972)	0.956	(0.919–0.958)	0.984	(0.970–0.985)	P<0.01