Results:The main sequences of death causes were as follows:circulatory system disease, tumor, respiratory system disease, poisonings and injuries.
结果：主要死因顺位为循环系统疾病、肿瘤、呼吸系统疾病、意外死亡（损伤与中毒）。
2
Objective to explore the related factors associated with postoperative respiratory failure (PRF) in elderly patients after the surgery of intracranial tumor.
目的探讨老年病人颅内肿瘤术后发生呼吸衰竭的相关因素。
3
The top 3 diseases of inpatients with malignant tumor were digestive and peritoneal tumor, lymph and haematogenous tissue tumor, respiratory and intrathoracal tumor.