Characteristics of regional clustering of pneumoconiosis in Foshan City during 2011 to 2020

  Objective  To analyze the spatial epidemiological characteristics of pneumoconiosis in Foshan City during 2011 to 2020, so as to provide scientific basis for prevention and control of pneumoconiosis.

  Methods  The spatial epidemiological characteristics of pneumoconiosis diagnosed in Foshan City during 2011 to 2020 were analyzed by using geographic information system(ArcGIS).

  Results  A total of 573 new cases of pneumoconiosis were reported in Foshan City during this period. The global spatial autocorrelation analysis showed that the incidence of pneumoconiosis was spatially aggregated from 2012 to 2014. Local spatial autocorrelation analysis showed that the incidence distribution of pneumoconiosis in Nanhai District and surrounding areas showed a low-high adjacent pattern, and that in Gaoming District and surrounding areas showed a high-low adjacent pattern; trend surface analysis showed that the gathering areas were mainly distributed in Chancheng District, northwest of Shunde District, southwest of Nanhai District and north of Gaoming District.

  Conclusions  The incidence of pneumoconiosis in Foshan City during 2011 to 2020 showed a zigzag upward trend. The spatial epidemiological analysis showed that the distribution of pneumoconiosis in Foshan City was discrete.