Statistical Analysis
Due to the exploratory nature of this small cohort pilot study, there
was no calculation in sample size. It was not possible to estimate the
real incidence of arrhythmias with the use of local dental anesthetics
in patients with CCh and ICD, since literature is limited by the absence
of studies in this population.
All variables were analyzed quantitatively, including the observation of
the minimum and maximum measured parameter values and the calculation of
means, SDs, and medians. All qualitative variables were calculated with
absolute and relative frequencies. For comparison between 2 groups in
relation to the means, we used the paired Student’s t test. The Wilcoxon
signed-rank test was used when the normality assumption was rejected.
Statistical analysis was performed using the SPSS (Statistical Package
for the Social Sciences), version 20.0 (SPSS, Inc, Chicago, IL). All
tests were two tailed and the level of significance was set at 5%.