This study comprehensively analyzed cases of scorpion envenomation in Brazil, exploring the temporal trends and geographic patterns of such incidents between January 1, 2012, and December 31, 2022. Simultaneously, we assessed the correlation between scorpion envenomation and social determinants of health and social vulnerability. We conducted a population-based ecological study, gathering information on the number of scorpion envenomation cases in Brazil, as well as socioeconomic data and social vulnerability indicators across the 5,570 Brazilian municipalities. The season-trend model, based on the classical additive decomposition method, informed estimations of scorpion envenomation variations over time. The spatial correlation of scorpion envenomation with socioeconomic and vulnerability indicators was assessed using the Bivariate Moran's I. A total of 1,343,224 cases of scorpion envenomation were recorded in Brazil from Jan 2012 to Dec 2022. A single increasing time trend was observed for the entire country for this period (APC 8.94, < 0.001). The seasonal analysis was significant for Brazil as a whole and all regions ( < 0.001), with peaks evident between October and November. The spatial distribution of cases was heterogeneous, with spatial clusters concentrated in the high-risk Southeast and Northeast regions. There was a high incidence of scorpion envenomation in municipalities facing social vulnerability, and, paradoxically, in those with better sanitation and waste collection. Our study revealed a heterogeneous geographical distribution of scorpion accidents in Brazil. Municipalities with higher social vulnerability exhibited a high incidence of scorpion envenomation.

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巴西的蝎子毒液及其与健康社会决定因素的关系：基于人群的生态研究

本研究全面分析了巴西的蝎子中毒病例，探讨了2012年1月1日至2022年12月31日期间此类事件的时间趋势和地理模式。同时，我们评估了蝎子中毒与健康和社会脆弱性的社会决定因素之间的相关性。我们进行了一项基于人口的生态研究，收集了巴西蝎子中毒案件数量的信息，以及巴西 5,570 个城市的社会经济数据和社会脆弱性指标。季节趋势模型基于经典的加性分解方法，可以估计蝎子毒液随时间变化的情况。使用双变量 Moran's I 评估蝎子中毒与社会经济和脆弱性指标的空间相关性。2012 年 1 月至 2022 年 12 月，巴西共记录了 1,343,224 例蝎子中毒病例。在此期间（APC 8.94，< 0.001）。季节性分析对于整个巴西和所有地区都很重要 (< 0.001)，峰值在 10 月至 11 月之间很明显。病例空间分布呈现异质性，空间聚集集中在东南部和东北部高风险地区。在面临社会脆弱性的城市中，蝎子中毒的发生率很高，而矛盾的是，在那些卫生条件和废物收集能力较好的城市中，蝎子中毒的发生率很高。我们的研究揭示了巴西蝎子事故的异质地理分布。社会脆弱性较高的城市蝎子中毒发生率较高。