Comparative Study of Evaluating Indicators for Cervical Cancer Mass Screening

Abstract

Objective To explore the rational and feasible evaluation indicators of mass screening of new-onset cervical cancer. Methods A total of 2 092 medical records of new-onset cervical cancer in Beijing from January 2007 to December 2010, as well as cervical cancer incidence and mortality from January 2000 to December 2010 in Beijing were provided by Beijing Office for Cancer Prevention and Control. Meanwhile, the clinical data of mass screening of cervical cancer during the year of 2008 and 2009 were collected from Maternal Child Network Information System. A co-analysis were made retrospectively. The different evaluation indicators (incidence rates, mortality, early stage diagnosis rates, detection rates, participate rates and early diagnosis rates) of cervical cancer screening were compared. Results Among 2 092 new-onset cervical cancer patients from January 2007 to December 2010, 1 663 cases (79.49%,1 663/2 092) had a clear clinical stage and 442 cases (26.58%, 442/1 663) were advanced cervical cancer patients. By checking the medical records of advanced cervical cancer of the hospitals and comparing with the data of cervical cancer screening from the year of 2008 and 2009, it showed that 24 cases with advanced cervical cancer participated in the cervical cancer screening, and 5 cases were missed. Those 5 cases mainly concentrated in 4 counties in Beijing. According to the current evaluation indicators of cervical cancer, screening effects of the four counties ranked the forefront among the whole 18 counties. Conclusions There are pros and cons between advanced cervical cancer incidence data, incidence rate, mortality, early diagnosis rate, detection rate, participate rate of cervical cancer. But by comparison with the advanced cervical cancer incidence data provided by the hospital medical records and cervical cancer screening data, we can find out misdiagnosed advanced cervical cancer patients, which can evaluate the quality of cervical cancer screening. Key words: Cervical cancer; Mass screening; Evaluation studies; Indicator