Descriptive statistics of the sample (n = 66): 33 cases and 33 controls.

None of the differences between groups were statistically significant. Welch's Two Sample t-test for unequal variances was used to compare age and BMI difference means between cases and controls (two-sided, 95% confidence interval (CI)). Fisher's exact test for count data was used to compare tobacco use, alcohol consumption and dental crowns (two sided, 95% CI). All p-values are rounded to the third decimal place; a p-value <0.5 would have been considered as significant.
Descriptive statistics of the sample (n = 66): 33 cases and 33 controls.