2.3. Statistical analysis
Descriptive statistics were reported for each defined landmark. A paired
t-test was performed to compare the dimensions of the right and left
IAC. An unpaired t-test was performed to compare the dimensions of the
IAC of males and females. Tests were performed with a 95% confidence
interval. The significance level was set at p ≤ 0.05. Repeatability was
assessed through intra- and inter-observer agreement with inter-class
correlation (ICC).