Abstract:Objective To investigate the missing reports of infectious diseases in medical institutions of Shenzhen City so as to further improve the quality of infectious disease surveillance reporting. Methods: A statistical analysis was conducted on the surveyed data concerning the missing reports of infectious diseases in medical institutions of Shenzhen City from 2005 to 2011. Results: The average missing report rate was 1.66% in Shenzhen City during 2005-2011, of which the missing report rates of category A, B and C notifiable diseases were 0.00%, 1.77% and 1.52%, respectively. There was no statistically significant difference in the missing report rates of category B and C notifiable diseases. The top 5 infectious diseases with highest missing report rate were malaria, pulmonary tuberculosis, scarlet fever, measles and mumps. The missing report rates of infectious diseases in outpatient and laboratory departments were 2.00% and 1.96% respectively, which were significantly higher than that of inpatient department (0.62%). The timely reporting rate of infectious diseases was 98.14%, and the completeness and accuracy rates of reporting card filling were 95.78% and 92.64%, respectively. Conclusions: The missing report rate of infectious diseases is declining but the quality of the reports is improving in recent years, which are closely related to implementing a series of comprehensive administration measures. Hospital information administration system can be used as an important assistant tool to decrease the missing reports of infectious diseases and improve the quality of reports in future.