Results
We found a significant correlation between the reference APCT and the Skew -VOG (Pearson’s R2 = 0.606, p <0.05). There was a good agreement between the two tests (Intraclass correlation coefficient 0.852, 95 CI 0.728-0.917, p<0.001). The overall accuracy of the VOG was estimated at 80.53% with an error rate of 19.46%. There was no significant difference in VOG skew estimations compared with the gold standard except for very small skews.