Statistics
Continuous data are presented as mean ± SD. Agreement between methods
was expressed according to the Bland-Altman method (14), including
calculation of bias and 95 % limits of agreement (LoA). Examiner
variability was assessed by the coefficient of variation (CV), and
correlation was assessed by Pearson’s correlation coefficient. Time
analysis was compared by a paired t-test and p < 0.05 was
considered significant. Data analysis was performed using R and R studio
software (version 1.0.143).