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These monthly updates use fatal overdose data updated weekly from the state death certificates and quarterly hospital discharge data for overdose. The definitions of drug overdose are mostly based on ICD-10 and ICD-10-CM. See the technical notes for further details. The 2021 death data are provisional. The tables with overdose rates include a flag for a relative standardized error(RSE) over 25% indicating that the rate is not reliable, following DOH standard. Starting in 2021 there are more [restrictions on publishing death data with small numbers] (https://apps.leg.wa.gov/Wac/default.aspx?cite=246-492-300) leading to suppressions of count between 1 and 9. All the data are based on Washington state, the county or the ACH of residence unless otherwise indicated.


1 Overdose Mortality


1.1 Drug Overdose Mortality County Map For 2016-2020 Combined

The leaflet maps classify every county (Figure 1.1) or ACH (Figure ??) by its drug overdose rates during the combined years of 2016-2020. The county/ACH rate confidence intervals(CI) are compared to the state CI to derive statistically significant difference. The geographies with less than 16 cases are left transparent.