Table 2.

Reproducibility (variance components) ratios with 95% confidence intervals among the tested methods

	CET vs TD-OCT			CO vs TD-OCT			CET vs CO
Parameter	Lower	Estimated	Upper	Lower	Estimated	Upper	Lower	Estimated	Upper
Global mean	0.272	0.370	0.505	0.259	0.353	0.481	0.733	0.953	1.239
Quadrants
Temporal	0.186	0.246	0.325	0.219	0.290	0.384	0.905	1.180	1.540
Superior	0.227	0.287	0.363	0.212	0.269	0.341	0.804	1.008	1.264
Nasal	0.273	0.347	0.441	0.323	0.410	0.522	0.978	1.230	1.545
Inferior	0.429	0.546	0.694	0.448	0.570	0.724	0.771	0.988	1.266
Clock hour
1	0.402	0.524	0.683	0.354	0.462	0.603	0.716	0.899	1.129
2	0.433	0.574	0.760	0.472	0.625	0.826	0.837	1.089	1.417
3	0.414	0.542	0.709	0.426	0.557	0.728	0.825	1.027	1.277
4	0.423	0.537	0.683	0.440	0.559	0.711	0.986	1.241	1.563
5	0.474	0.602	0.765	0.522	0.663	0.842	0.940	1.195	1.520
6	0.341	0.463	0.630	0.312	0.424	0.576	0.706	0.915	1.186
7	0.451	0.599	0.797	0.488	0.647	0.859	0.828	1.080	1.409
8	0.385	0.509	0.672	0.432	0.570	0.753	0.861	1.120	1.456
9	0.258	0.342	0.453	0.259	0.343	0.455	0.772	1.004	1.306
10	0.247	0.330	0.440	0.211	0.282	0.377	0.656	0.856	1.116
11	0.598	0.774	1.002	0.596	0.771	0.998	0.791	0.997	1.256
12	0.472	0.664	0.935	0.388	0.546	0.767	0.637	0.822	1.060

When a ratio is equal to one, reproducibilities (variance components (VCs)) are identical. Centred Each Time (CET) and Centred Once (CO) methods showed statistically significantly smaller VC ratios than time-domain optical coherence tomography (TD-OCT) except for 11 o’clock with CET. There was no statistically significant difference in reproducibility (VC) ratios between CET and CO.