Objective: To explore the temporal and spatial characteristics of pneumoconiosis in Hebei Province from 2009 to 2018, and to provide evidence for the policy development of pneumoconiosis prevention and control. Methods: In February 2019, a database of pneumoconiosis incidence from 2009 to 2018 in Hebei Province was built. The spatial-temporal distribution of pneumoconiosis in Hebei Province was displayed based on barycenter migration technology and spatial autocorrelation analysis. Results: A total of 6099 cases of pneumoconiosis were reported in Hebei Province from 2009 to 2018, the top 5 pneumoconiosis were silicosis(4399, 72.13%) , coal worker pneumoconiosis (1298 , 21.28%) , ceramics pneumoconiosis (224, 3.67%) , welding worker's pneumoconiosis(76, 1.25%) , and casting worker's pneumoconiosis(48, 0.79%). The focus of pneumoconiosis from 2009 to 2014 moved from Tangshan in the northeast to Zhangjiakou in the northwest, and moved to Chengde in the north from 2015 to 2017, and moved back to Tangshan in 2018. The incidence of pneumoconiosis was globally autocorrelation (P <0.05) from 2009 to 2011 and 2014 to 2018. The high-high gathering areas were located in Zhangjiakou, Chengde and other areas. Conclusion: The barycenter of pneumo- coniosis in hebei province from 2009 to 2018 is relatively stable, mainly locates in the northern part of Hebei Province over the years. There is an obvious regional aggregation, and the aggregation type is mainly high-high aggregation, which indicates that relevant departments should focus on strengthening the prevention and treat- ment of aggregation areas on the basis of overall planning.
目的： 了解河北省2009~2018年尘肺病发病的时空分布，为制定尘肺病防治策略提供依据。 方法： 于2019年2月，收集2009~2018年河北省尘肺病新发病例，建立数据库；采用重心迁移技术和空间自相关方法分析尘肺病发病的时间及空间分布特征。 结果： 河北省2009~2018年共报告尘肺病6 099例，发病例数前5位的尘肺病种为矽肺（4 399例，72.13%）、煤工尘肺（1 298例，21.28%）、陶工尘肺（224例，3.67%）、电焊工尘肺（76例，1.25%）和铸工尘肺（48例，0.79%）。尘肺病2009~2014年发病重心由东北部唐山地区向西北部张家口地区方向迁移，2015~2017年向北部承德地区迁移，2018年重心回迁到唐山地区。2009~2011年、2014~2018年尘肺病发病存在全局空间自相关性（P<0.05），高-高聚集区主要分布在张家口市、承德市等地区。 结论： 河北省2009~2018年尘肺病发病重心较为稳定，主要位于河北省北部地区，且存在明显的区域聚集性，聚集类型主要为高-高聚集，相关部门应在总体规划的基础上，重点加强尘肺病聚集地区的防治工作。.
Keywords: Barycenter migration; Pneumoconiosis; Spatial autocorrelation; Spatial-temporal charac- teristics.