2.5. Statistical analysis
Table 1 reports the means, standard deviations of FS, ST, and FS/ST2 at each site for male and female samples. The Mann–Whitney U-test showed that CUDC-907 FS and FS/ST2 were significantly greater in male samples than in female samples at the middle suture sites (S2 and S3), whereas there were no significant differences in FS and FS/ST2 at other sites. No significant differences were found in ST between male and female samples at any site. The Mann–Whitney U-test also revealed significant differences in FS and FS/ST2 between all suture sites and at all bone sites in both male and female samples (all, p < 0.001). The intraobserver and interobserver differences in ST were tested using the depth diversity gradient Wilcoxon test, and no significant difference was found (p = 0.843, 0.792, respectively).
Table 2 reports the results of the Mann–Whitney U-test identifying differences in FS and FS/ST2 between sagittal suture sites by sex. The FS and FS/ST2 at the suture edges (S1 and S4) were significantly greater than at the middle suture sites regardless of sex. No significant differences were found in FS or FS/ST2 between S1 and S4. Nor were significant differences found in FS or FS/ST2 between S2 and S3.