2.7 Statistical Analysis
The statistical analysis was conducted using SPSS for Windows software (version 22.0; IBM Corp., Armonk, NY, USA). The intraobserver coefficient of variation for all assessments was 0.94. Normality tests were performed for all variables. Age, gender, parental education status, dentition period, occlusion type, and DMFT/dmft and ECOHIS-T results were compared between the HM and control groups using the Mann-Whitney U test. Correlations between the SOHI, DMFT/dmft, and ECOHIS-T scores were evaluated using Spearman’s rank correlation analysis. A p-value < 0.05 was considered significant.