VSRR Provisional Drug Overdose Death Counts

This data presents provisional counts for drug overdose deaths based on a current flow of mortality data in the National Vital Statistics System. Counts for the most recent final annual data are provided for comparison. National provisional counts include deaths occurring within the 50 states and the District of Columbia as of the date specified and may not include all deaths that occurred during a given time period. Provisional counts are often incomplete and causes of death may be pending investigation resulting in an underestimate relative to final counts. To address this, methods were developed to adjust provisional counts for reporting delays by generating a set of predicted provisional counts. Several data quality metrics, including the percent completeness in overall death reporting, percentage of deaths with cause of death pending further investigation, and the percentage of drug overdose deaths with specific drugs or drug classes reported are included to aid in interpretation of provisional data as these measures are related to the accuracy of provisional counts. Reporting of the specific drugs and drug classes involved in drug overdose deaths varies by jurisdiction, and comparisons of death rates involving specific drugs across selected jurisdictions should not be made. Provisional data presented will be updated on a monthly basis as additional records are received. For more information please visit: https://www.cdc.gov/nchs/nvss/vsrr/drug-overdose-data.htm

本数据集基于美国国家生命统计系统（National Vital Statistics System, NVSS）的实时死亡率数据流，提供药物过量死亡暂计数（provisional counts）。同时提供最新的最终年度死亡计数以供对照参考。国家层面的暂计数涵盖截至指定日期美国50个州及哥伦比亚特区境内发生的死亡病例，但可能未覆盖特定时段内发生的全部死亡案例。暂计数通常并不完整，且部分死亡原因尚待调查核实，因此相较于最终计数，暂计数可能存在低估情况。为解决这一问题，研究人员开发了校正方法，通过生成一组预测暂计数来弥补报告延迟带来的偏差。本数据集纳入多项数据质量指标，以辅助解读暂计数数据，具体包括总死亡报告完成率、死亡原因待进一步调查的死亡占比，以及已报告具体药物或药物类别的药物过量死亡占比——上述指标均与暂计数的准确性密切相关。不同司法管辖区对药物过量死亡涉及的具体药物及药物类别的报告规范存在差异，因此不得对选定司法管辖区间涉及特定药物的死亡率进行跨区域比较。本数据集所呈现的暂计数数据将根据后续新增的记录每月进行更新。如需了解更多信息，请访问：https://www.cdc.gov/nchs/nvss/vsrr/drug-overdose-data.htm