Craniofacial morphological anomalies can be divided into two principal categories: skeletal anomalies and soft tissue anomalies. This study examined the hypothesis that the assessment of indices representing both skeletal and soft tissue can be used to appropriately identify the risk factor of obstructive sleep apnea-hypopnea syndrome (OSAHS). 232 suspected OSAHS male patients were examined with polysomnography and divided into two groups (202 males with OSAHS and 30 male controls without OSAHS). Cephalometric analysis was performed on all patients to evaluate craniofa-cial morphological anomalies. The measurement sites were as follows: skeletal morphology; soft tissue morphology; mixed morphology including mandibular plane to hyoid bone (MP-H); and jaw soft tissue (JS) ratio; a novel ratio we defined, between the area of jaw and area of tongue with soft palate. JS ratio increased with AHI as well as MP-H. MP-H and JS ratio showed significant but weak correlation with apnea-hypopnea index. JS ratio was significantly associated with an increased risk for severe OSAHS, even after adjusting age and BMI, its odds ratio was the greatest among these variables. These results showed that mixed craniofacial, skeletal and soft tissue morphology are correlated with AHI, and JS ratio may be a useful parameters to explain the characteristics of OSAHS in male patients.

中文翻译：

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日本男性阻塞性睡眠呼吸暂停低通气综合征患者颅面形态的头影测量评估

颅面形态异常可分为两大类：骨骼异常和软组织异常。本研究检验了这样一个假设，即对代表骨骼和软组织的指数的评估可用于适当识别阻塞性睡眠呼吸暂停低通气综合征 (OSAHS) 的危险因素。232 名疑似 OSAHS 男性患者接受了多导睡眠图检查并分为两组（202 名男性患有 OSAHS，30 名男性对照组没有 OSAHS）。对所有患者进行头颅测量分析以评估颅面形态异常。测量部位如下：骨骼形态；软组织形态；混合形态，包括下颌平面到舌骨（MP-H）；和颌骨软组织 (JS) 比率；我们定义的新比率，下颌区和软腭舌区之间。JS 比率随着 AHI 和 MP-H 的增加而增加。MP-H 和 JS 比值与呼吸暂停低通气指数呈显着但微弱的相关性。JS 比率与严重 OSAHS 的风险增加显着相关，即使在调整年龄和 BMI 后，其优势比在这些变量中也是最大的。这些结果表明混合的颅面、骨骼和软组织形态与 AHI 相关，JS 比可能是解释男性患者 OSAHS 特征的有用参数。在这些变量中，它的优势比是最大的。这些结果表明混合的颅面、骨骼和软组织形态与 AHI 相关，JS 比可能是解释男性患者 OSAHS 特征的有用参数。在这些变量中，它的优势比是最大的。这些结果表明混合的颅面、骨骼和软组织形态与 AHI 相关，JS 比可能是解释男性患者 OSAHS 特征的有用参数。