Abstract: Objective To understand the basic situation of disinfection quality in medical institutions within Tongling City for data support for the quality control of nosocomial infection and prevention of nosocomial infection events. Methods By the Hygienic Standard for Hospital Disinfection (GB 15982—2012) and Disinfection Technical Standard (2002 edition), different items were sampled on-site in different medical institutions Tongling area, and tested for the disinfection quality. Results The qualified rates of all samples collected between 2017 and 2020 were 99.09%, 99.18%, 98.83% and 98.63%, respectively, and the overall qualified rate was 99.04%. The difference was insignificant in between the four years (χ2=0.257, P>0.05). The qualified rates for the samples obtained from tertiary, secondary, primary and clinical medical institutions were 98.54%, 99.16%, 98.90% and 99.18%, respectively. There was no difference in the qualified rate of samples from different levels of medical institutions (χ2=0.291, P>0.05). In special comparison of hand disinfection effect, the pass rate (83.33%) was the lowest in primary medical institutions in 2017, and the lowest in tertiary medical institutions in 2018 and 2019, which was 90.91% and 88.89%, respectively. The unqualified items were associated with disinfection of the air and medical staff's hands. Conclusion The disinfection quality was maintained at better level in medical institutions in Tongling City from 2017 to 2020. Our findings suggest that medical institutions should strengthen surveillance over the quality of medical staff's hand hygiene and air disinfection, and competent departments should carry out irregular and random inspections to discover and solve potential problems in order to further improve the quality of hospital disinfection.

Key words: Medical institutions, Disinfection effect, Monitoring