Objective To analyze the monitoring of healthcare-associated infection(HAI)in the intensive care unit(ICU)over the past 12 years based on Joinpoint regression model,and evaluate the trend changes and relevant fac-tors of HAI incidence.Methods ICU patients in a tertiary first-class hospital from January 2012 to December 2023 were selected and performed prospective monitoring.Trend changes of HAI incidence and the correlation with con-sumption of hand hygiene products as well as HAI management measures were analyzed.Results From 2012 to 2023,6 929 ICU patients were included in the monitoring,543 patients had 655 episodes of HAI,with incidence and case incidence of HAI being 7.84％ and 9.45％,respectively.The average severity of the disease was 3.62,and the adjusted HAI incidence was 2.17％.The daily incidence of ventilator-associated pneumonia(VAP),cathe-ter-associated urinary tract infection(CAUTI),and central line-associated bloodstream infection(CLABSI)were 6.19‰,3.45‰,and 1.23‰,respectively.The consumption of hand hygiene products was 122.98 mL/bed-day.The compliance rate and correct rate of hand hygiene were 90.63％and 90.46％,respectively.From 2012 to 2023,incidence of HAI(51.29％vs 4.39％),case incidence of HAI(72.41％vs 4.94％),the adjusted incidence of HAI(15.98％vs 1.04％),daily incidence of VAP(22.50‰ vs 4.33‰),daily incidence of CAUTI(14.23‰ vs 1.64‰),and daily incidence of CLABSI(10.60‰ vs 0.20‰)all decreased significantly(all P＜0.05).Both con-sumption of hand hygiene products(75.16 mL/bed-day vs 147.35 mL/bed-day)and correct rate of hand hygiene(85.00％vs 90.28％)increased significantly(both P＜0.05).A total of 1 946 pathogens were detected,with an increase in the proportion of Staphylococcus aureus(1.30％ vs 9.57％)and a decrease in the proportion of fungi(11.04％vs 1.74％).The daily consumption of hand hygiene products negatively correlated with the incidence of HAI,the case incidence of HAI,as well as the daily incidence of CAUTI and CLABSI(all P＜0.05).Incorpora-ting HAI real-time monitoring system and HAI management into performance assessment could decrease HAI-rela-ted incidence(P＜0.05).Conclusion HAI-related incidence presents a downward trend.Scientific and comprehen-sive HAI prevention and control management measures such as healthcare workers'hand hygiene management,on-line HAI real-time monitoring system,and incorporating HAI management into performance assessment can de-crease HAI-related incidence and promote the improvement of medical quality.

Objective To analyze the monitoring of healthcare-associated infection(HAI)in the intensive care unit(ICU)over the past 12 years based on Joinpoint regression model,and evaluate the trend changes and relevant fac-tors of HAI incidence.Methods ICU patients in a tertiary first-class hospital from January 2012 to December 2023 were selected and performed prospective monitoring.Trend changes of HAI incidence and the correlation with con-sumption of hand hygiene products as well as HAI management measures were analyzed.Results From 2012 to 2023,6 929 ICU patients were included in the monitoring,543 patients had 655 episodes of HAI,with incidence and case incidence of HAI being 7.84％ and 9.45％,respectively.The average severity of the disease was 3.62,and the adjusted HAI incidence was 2.17％.The daily incidence of ventilator-associated pneumonia(VAP),cathe-ter-associated urinary tract infection(CAUTI),and central line-associated bloodstream infection(CLABSI)were 6.19‰,3.45‰,and 1.23‰,respectively.The consumption of hand hygiene products was 122.98 mL/bed-day.The compliance rate and correct rate of hand hygiene were 90.63％and 90.46％,respectively.From 2012 to 2023,incidence of HAI(51.29％vs 4.39％),case incidence of HAI(72.41％vs 4.94％),the adjusted incidence of HAI(15.98％vs 1.04％),daily incidence of VAP(22.50‰ vs 4.33‰),daily incidence of CAUTI(14.23‰ vs 1.64‰),and daily incidence of CLABSI(10.60‰ vs 0.20‰)all decreased significantly(all P＜0.05).Both con-sumption of hand hygiene products(75.16 mL/bed-day vs 147.35 mL/bed-day)and correct rate of hand hygiene(85.00％vs 90.28％)increased significantly(both P＜0.05).A total of 1 946 pathogens were detected,with an increase in the proportion of Staphylococcus aureus(1.30％ vs 9.57％)and a decrease in the proportion of fungi(11.04％vs 1.74％).The daily consumption of hand hygiene products negatively correlated with the incidence of HAI,the case incidence of HAI,as well as the daily incidence of CAUTI and CLABSI(all P＜0.05).Incorpora-ting HAI real-time monitoring system and HAI management into performance assessment could decrease HAI-rela-ted incidence(P＜0.05).Conclusion HAI-related incidence presents a downward trend.Scientific and comprehen-sive HAI prevention and control management measures such as healthcare workers'hand hygiene management,on-line HAI real-time monitoring system,and incorporating HAI management into performance assessment can de-crease HAI-related incidence and promote the improvement of medical quality.

Objective: To analyze the spatio-temporal distribution characteristics of new HIV/AIDS cases at ages of 50 years and older in Wenzhou City from 2006 to 2020, so as to provide insights into precise control of AIDS. Methods : The data of new HIV/AIDS cases aged 50 years and older in Wenzhou City from 2006 to 2020 were collected from the China Information System for Disease Control and Prevention. The temporal and spatial distribution characteristics of new HIV/AIDS cases at ages of 50 years and older were identified using global and local spatial autocorrelation analyses and spatial-temporal scan analysis. Results: Totally 1 917 new HIV/AIDS cases aged 50 years and older were detected in Wenzhou City from 2006 to 2020, and there were 179 new HIV/AIDS cases in 58 townships ( streets ) from 2006 to 2010, 643 cases in 113 townships ( streets ) from 2011 to 2015 and 1 095 cases in 147 townships ( streets ) from 2016 to 2020, respectively. The distribution of new HIV/AIDS cases appeared positive spatial autocorrelations from 2006 to 2010 ( Moran's I value=0.05, Z=1.976, P=0.046 ), from 2011 to 2015 ( Moran's I value=0.08, Z=2.314, P=0.028) and from 2016 to 2020 (Moran's I value=0.18, Z=3.956, P=0.003 ). Spatial-temporal scan analysis identified two clusters. The primary cluster mainly covered 70 towns ( streets ) in Lucheng Distrct, Ouhai District, Longwan District, Economic and Technical Development Region, Rui' an City and Pingyang County of Wenzhou City from January 1, 2014 to December 31, 2020, with a cluster radius of 34.30 km [log likelihood ratio ( LLR )=192.84, RR=2.60, P<0.001], and the secondary cluster was located in Hongqiao Township of Yueqing City from January 1, 2009 to December 31, 2015, with a cluster radius of 0 ( LLR=90.60, RR=7.27, P<0.001 ). Conclusions The number of new HIV/AIDS cases aged 50 years and older appeared a tendency towards a rise in Wenzhou City from 2006 to 2020, with spatial clusters that were predominantly identified in urban areas, Rui' an City and Pingyang County of Wenzhou City.