为了解我院内科老年病人医院感染的发病因素 ,特对 1997年 12月至 1999年 10月内科系 60岁以上出院病历 4 50例作了一次回顾性调查。1　一般资料1.1　基本情况　 4 50例住院老年患者中男性 2 70例 ,女性 180例 ,年龄 60岁— 70岁 310例 ,71岁—80岁 10 0例 ,80岁者 4 0例 ,均 In order to understand the incidence of nosocomial senile patients with nosocomial infection, we conducted a retrospective survey of 4 50 cases of medical records of patients over the age of 60 from December 1997 to October 1999. 1 General information 1.1 Basic information 4 50 elderly hospitalized 50 cases of male 2 70 cases, 180 females, aged 60 years old - 310 cases of 70 years old, 70 years old 80 years old 100 cases, 80 years old 40 cases, both