UNASSIGNED: Static three-dimensional magnetic resonance imaging was used to compare five VP characteristics including velar length, velar thickness, effective velar length, levator veli palatini muscle length, and pharyngeal depth between age-matched males (n = 1,670) and females (n = 1,578). Additionally, these dimensions were used to determine the VP ratio and effective VP ratio.
UNASSIGNED: Males showed significantly larger dimensions for all VP distances and significantly lower ratios of velar length and effective velar length to pharyngeal depth (p < .05). The magnitude of these effect sizes was small to medium, with Cohen\'s d values ranging from 0.12 to 0.63. Additionally, the VP ratio and effective VP ratio are lower among males compared to females (p < .05).
UNASSIGNED: Results suggest the presence of sexual dimorphism in the VP mechanism among 9- and 10-year-old children. These findings emphasize the necessity of using different normative data for males and females when making comparisons to patients with cleft palate.
方法:静态三维磁共振成像用于比较五种VP特征,包括Velar长度,velar厚度,有效绒毛长度,提肌velipalatini肌肉长度,年龄匹配的男性(n=1,670)和女性(n=1,578)之间的咽部深度。此外,这些尺寸用于确定VP比率和有效VP比率。
结果:男性显示所有VP距离的尺寸均显着较大,并且囊长度和有效囊长度与咽部深度的比率显着降低(p<0.05)。这些效应大小的大小是小到中等,科恩的d值范围从0.12到0.63。此外,男性的VP比率和有效VP比率低于女性(p<0.05)。
结论:结果表明,在9岁和10岁儿童中,VP机制存在性二态性。这些发现强调了在与left裂患者进行比较时,对男性和女性使用不同的规范数据的必要性。