Epidemiological characteristics of hospital-associated infection in elderly patients in a three-A hospital from 2020 to 2024
10.11816/cn.ni.2025-258024
- VernacularTitle:2020-2024年某三甲医院老年患者医院感染流行病学特征
- Author:
Tianyu LIU
1
;
Jian LI
1
;
Yu LIU
1
;
Minghang ZHANG
1
;
Junyun ZHOU
1
Author Information
1. 中国人民解放军东部战区空军医院疾病预防控制科,江苏南京 210001
- Publication Type:Journal Article
- Keywords:
Elderly patient;
Hospital-associated infection;
Epidemiological characteristic;
Seasonal distribution
- From:
Chinese Journal of Nosocomiology
2025;35(20):3137-3141
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE To investigate the age-group differences and seasonal distribution patterns of epidemiologi-cal characteristics of hospital-associated infection in elderly inpatients in a three-A hospital.METHODS Based on the Xinglin Real-time Monitoring System,a retrospective analysis was conducted on clinical data of 67 157 patients hospitalized in the Air Force Hospital of Eastern Theater Command from Jan.2020 to Dec.2024.Elderly patients were divided into three age groups:young-age group(60-69 years),middle-age group(70-79 years)and ol-dest-age(≥80 years).The epidemiological characteristics and seasonal distribution patterns of the three groups were analyzed.RESULTS From 2020 to 2024,there were 1 524 cases of hospital-associated infection,with an inci-dence rate of 2.27％.The infection rate was higher in the oldest-age group(6.08％)than those in the young-age group(1.77％)and the middle-age group(2.52％)(P＜0.001).The top three departments with the highest in-cidence rates of hospital-associated infection were the geriatric department(10.97％),intensive care unit(9.65％)and respiratory department(4.96％).The lower respiratory tract was the main site of infection,and the infection rate was higher in winter than in other seasons.The pathogens were predominantly gram-negative bacteria(60.35％),with Pseudomonas aeruginosa being the most frequently detected.CONCLUSIONS Advanced age,male gender and hospitalization in winter are key risk factors for hospital-associated infection.Seasonal pre-vention and control strategies should be implemented in departments with high incidence of respiratory infections,and monitoring of multidrug-resistant bacteria should be enhanced.
