家族性病变占7% ，双侧病变13% ，恶性变10 % ，内分泌倾向者3%。
Family occurrence (7%), bilateral growth (13%), trend of endocrine-secretion (2.6%), and malignant changes (10%) were found.
很多神经性病变都有遗传性，很多病例都可能有阳性家族史而确立诊断。
A large number of neurologic disorders are hereditary, and a positive family history may establish the diagnosis in many instances.
文化程度高低、在西宁居住年限长短、有无高血压家族史及吸烟、饮酒、体质指数、睡眠质量等因素，对慢性病有着不同程度的影响。
Factors such as culture level, reside years in Xining, family history of hypertension, smoking, drinking, BMI, and quality of sleeping produced the difference influence on chronic diseases.
文化程度高低、在西宁居住年限长短、有无高血压家族史及吸烟、饮酒、体质指数、睡眠质量等因素，对慢性病有着不同程度的影响。
Factors such as culture level, reside years in Xining, family history of hypertension, smoking, drinking, BMI, and quality of sleeping produced the difference influence on chronic diseases.
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