ANALYSIS OF THE SPATIOTEMPORAL DISTRIBUTION OF PATIENTS WITH BREAST CANCER DETECTED IN SCREENING IN ZIBO, CHINA

Abstract

Objective To analyze the spatiotemporal distribution of patients with breast cancer detected in screening in Zibo, China, and to provide a scientific basis for prevention and treatment of the disease. Methods The breast cancer data were pooled from women aged 35-64 years from the rural areas in Zibo who were screened from 2019 to 2021. SPSS 19.0 and Microsoft Office were used for data processing, and ArcGIS 10.2 and SaTScan were used for trend analysis, spatial correlation analysis, and spatiotemporal scanning statistical analysis. Results From 2019 to 2021, 307 patients with breast cancer were detected; the detection rates in 2019, 2020, and 2021 were 64.70/100 000, 73.87/100 000, and 71.68/100 000, respectively, with an average 3-year detection rate of 70.62/100 000; there was a significant difference in the 3-year detection rate (χ2=11.889,P<0.01). The average 3-year breast cancer detection rate from 2019 to 2021 was spatially aggregated (Moran’s I=0.113,P<0.05); the breast cancer detection rates showed a gradual decrease on both sides from southwest to northeast, with higher detection rates observed in Boshan District, Zichuan District, and Linzi District. The changing trend of breast cancer detection rates in 2020 was significant, with a highly aggregated trend in the central and eastern regions covering an area with a radius of 22.39 km involving 11 townships. Conclusion The screening finds that the breast cancer detection rate in Zibo is higher in the central area than in the northern and southern areas. This should be used as a basis for tilting public health resources towards areas with high detection rates in the future.

Keywords

• breast neoplasms|early detection of cancer|mass screening|spatial analysis|incidence|age of onset