Table 6.

Reproducibility of QTo Measurements: Mean Difference Between Measurements, With 90, 95, and 97.5% Two‐Tailed Upper Confidence Limit for the Difference, According to Measurement Method

Method	Mean Difference Between Pairs (ms)	Upper 90% Confidence Limit (ms)	Upper 95% Confidence Limit (ms)	Upper 97.5% Confidence Limit (ms)
Global QTo	2.66	4.11	4.40	4.67
Representative QTo II, baseline	0.73	3.77	4.37	4.92
Representative QTo II, tangent	2.27	3.92	4.25	4.55
Representative QTo V2, baseline	−0.12	1.85	2.24	2.60
Representative QTo V2, tangent	−0.58	0.94	1.24	1.51
Representative QTo V3, baseline	−0.90	1.29	1.73	2.12
Representative QTo V3, tangent	0.60	2.80	3.24	3.63