This report summarizes data trends related to overdose, substance use, harm prevention, and related metrics. It also provides recommendations to inform programs developed by the Quinnipiack Valley Health District (QVHD) and New Haven Health Department’s (NHHD) joint effort to reduce overdoses through the Overdose Data to Action (OD2A) grant administered through the Connecticut Department of Public Health (CTDPH) via the Centers for Disease Control and Prevention (CDC). This report was compiled between March and June, 2021, using the latest available data.

The data that follow describe the four-town Quinnipiack Valley Health District (including the towns of Bethany, Hamden, North Haven, and Woodbridge) along with New Haven. Collectively, this report will refer to that grouping of five towns as the “region.” The region comprises a large portion of the 13-town Greater New Haven area. Some data presented in this report are only available for the Greater New Haven area and will be indicated.

The 2023 update to this report was published in January 2024.