表 5.

患者的既往史、个人史相关因素

Previous and personal history data

Items	Tracheostomy	Non-tracheostomy	P
History of surgery	112	83	0.358
History of radiotherapy	41	15	0.029
History of chemotherapy	18	5	0.068
Diseases of respiratory system	24	4	0.004
High blood pressure	76	34	0.027
Diabates	30	12	0.108
Cardio & cerebrovascular diseases	34	18	0.404
Hepatopathy	8	4	0.633
Nephropathy	1	0	0.412
Hemopathy	6	3	0.945
Smoking	133	43	< 0.001
Alcohol abusing	101	25	< 0.001