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The reported and predicted provisional counts represent the numbers of deaths due to drug overdose occurring in the 12-month periods ending in the month indicated. map of the percentage changes in provisional drug overdose deaths for the current 12 month-ending period compared with the 12-month period ending in the same month of the previous year, by jurisdiction and (c) the reported and predicted provisional counts of drug overdose deaths involving specific drugs or drug classes occurring nationally and in selected jurisdictions. The provisional data presented in this visualization include: (a) the reported and predicted provisional counts of deaths due to drug overdose occurring nationally and in each jurisdiction (b) a U.S. To address this, methods were developed to adjust provisional counts for reporting delays by generating a set of predicted provisional counts (see Technical notes). Provisional counts are often incomplete and causes of death may be pending investigation (see Technical notes) resulting in an underestimate relative to final counts.

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. Counts for the most recent final annual data are provided for comparison. This data visualization presents provisional counts for drug overdose deaths based on a current flow of mortality data in the National Vital Statistics System. Please see the Technical Notes of the dashboard for more information. Given the improvements in timeliness, provisional estimates of drug overdose deaths will now be reported 4 months after the date of death, shortening the previous 6-month lag by 2 months. UPDATE : Recent improvements in timeliness of death certificate reporting, including for drug overdose deaths, have prompted a re-evaluation of the need for a 6-month lag time for the Monthly Provisional Drug Overdose Death Counts report. Differences between final and provisional data.Percent of records pending investigation.Selection of specific states and other jurisdictions to report.Cause-of-death classification and definition of drug deaths.