Objective To analyze the specimen types,ward distribution and risk factors for infections caused by extended-spectrum β-lactamase(ESBLs)-producing-Escherichia coli(ECO) in recent two years,so as to provide bacteriological basis for both hospital infection control and clinical anti-infection treatment.Methods Non-repetitive 443 ECO strains isolated from the hospitalized patients in the Third People′s Hospital of Shenzhen were collcted,and the phoenix100 system was employed for bacterial identification and antimicrobial susceptibility tests.ESBLs-ECO was further confirmed by the double-disk synergy test,and the risk factors caused ESBLs-ECO were statistically analyzed.Results A total of 115 strains of ESBLs-ECO were identified among the 443 strains of ECO,which accounted for 26.0%.The ESBLs-ECO strains were mainly isolated from the sputum,urine,and blood specimens.Among the isolated ESBLs-ECO strains,20.9% were isolated from the department of Tuberculosis,13.9% from the department of pediatric,12.2% from the department of live disease,and 8.7% from the department of infection.The male sex,surgery and use of the third generation cephalosporins were independent risk factors of ESBLs-ECO infection.Conclusion The isolation rate of ESBLs-ECO in this hospital is high.It is necessary for the hospital to strengthen the control of nosocomial infections according to the risk factors.More attention should be payed on male patients,the standardization of surgical operation and disinfection,and the restriction of using the third generation cephalosporins,so as to reduce the incidene of ESBLs-ECO infections.

Objective:To compile the post quality standard scale for wound, ostomy and continence nurses in China and to test the reliability and validity of the scale.Methods:The first draft of the scale was formed through literature review, semi-structured interview and Delphi expert letter consultation. Using the purposive sampling method, a total of 796 wound, ostomy and continence nurses from 31 provinces, municipalities and autonomous regions of China were selected from April to May 2019 to test the reliability and validity of the scale. A total of 796 questionnaires were sent out and 693 were effectively received, with effective recovery of 87.1%.Results:The post quality standard scale for wound, ostomy and continence nurses included 3 first-level items and 77 second-level items. Three common factors were extracted from exploratory factor analysis and the cumulative variance contribution rate was 72.466%. The correlation coefficient between the first-level items was 0.709-0.898 and the correlation coefficient between the first-level item and the total scale was 0.859-0.937. The Cronbach's α coefficient of the total amount table was 0.992 and the half-fold reliability coefficient was 0.917 ( P<0.01) . Conclusions:The post quality standard scale for wound, ostomy and continence nurses has good reliability and validity, which can be used to evaluate the post quality of wound, ostomy and continence nurses.