青年人特发性气胸与胸廓畸形的相关性分析

目的 了解特发性气胸患者气胸与胸廓纵横径比值（即矢状径和横径的比值）、年龄的相关性.方法 回顾性分析特发性气胸107例,以该组病例作为研究组,抽取同一时期的胸片正常的检查者105例为对照组.计算纵横径比值及均值,将两组数据进行成组设计t检验及相关性分析.结果 胸廓纵横径比值的均值研究组为0.38,对照组为0.44,气胸患者纵横径比值均值小于对照组（P〈0.01）;特发性气胸首次发病年龄与纵横径比值呈正相关.结论 胸廓畸形的年轻人特发性气胸的发病率较高,且首次发病年龄与纵横径比值呈正相关.

Correlational study between Idiopathic pneumothorax and thoracic deformity in the youth

Objective To test the possibility that the thoracic defomity is a risk factor of the diopathic pneumothorax in youth by making a statistical analysis of the thoracic sagittal diameter and transverse diameter ratio in patients and normal people. To study the correlation between this ratio and age of the patients. Methods 107 cases of idiopathic pneumothorax were taken as subjects and other 105 cases in' the same period with normal pneumothorax were used as the control group. T-test,correlation study and scottered spot maps were made based on the ratio of vertical and horizontal diameters,the mean and the age. Results The mean thorax aspect ration( MTAR) of the patients with spontaneous pneumothorax was 0.38, and MTAR in normal people was 0.44, indicating a statistical significance ( P < 0.01) of the difference of MTAR between the two groups. The age of the patients' first onset age and the ratio of vertical and horizontal diameter was positively correlated. Conclusion Thoracic deformity of idiopathic pneumothorax had a higher incidence in young people,and there was a positive correlation between of the age of their first onset and the ratio of vertical and horizontal tracks.