ICU had the highest prevalence rate of 33.33%,lower respiratory tract infection constiuent ratio was 28.09%,urinary tract infection constiuent ratio was 14.6%,incisional site infection constiuent ratio was 13.4%.

• 重症监护病房的现患率最高为 33.；33%25 ; 下呼吸道感染占 2 8