California Quick Stats

Welcome to the California Opioid Overdose Surveillance Dashboard

The dashboards and data available through this application are the result of ongoing collaboration between the California Department of Public Health (CDPH), Office of Statewide Health Planning and Development (OSHPD), Department of Justice, and the California Health Care Foundation. The goal is to provide a data tool with enhanced data visualization and integration of statewide and geographically-specific non-fatal and fatal opioid-involved overdose and opioid prescription data. These dashboards will enable surveillance of several short and long-term goals currently targeted by California's Prescription Drug Overdose Prevention program.

For more information on what California is doing to address the opioid epidemic, visit the following CDPH sites:

DASHBOARD UPDATES

04/06/2019
New Feature! Data Publications
We are excited to announce the new Data Publications page, which can now be found in the left-hand sidebar. You will find our March 2019 data brief titled 'Patterns of Opioid-Related Overdose Deaths in California, 2011-2017' in this section.
03/26/2019
New! Third Quarter 2018 CURES Trend Data
Third quarter 2018 (July - September 2018) opioid prescription data from the Department of Justice (DOJ) CURES database are available in the trend line graph and table (upper right corner box on State & County Dashboard pages).

NOTE: Data for 2018 are only available on trend line graph and corresponding table and not displayed on maps or quick stats because full year 2018 data are not yet available.
03/26/2019
UPDATED - First and Second Quarter 2018 CURES Trend Data
Prescription counts for the first and second quarters of 2018 (January-June 2018) have been updated using the latest available oral morphine milligram equivalent (MME) conversion factors from the Centers for Disease Control and Prevention. This update may affect counts or rates for first and second quarters of 2018 posted previously on the Dashboard. For more information on MME conversion please visit: https://www.cdc.gov/drugoverdose/resources/data.html
02/11/2019
New! Third Quarter 2018 Morbidity (ED) Trend Data
Third quarter 2018 (July - September 2018) Emergency Dept. discharge trend data from OSHPD are now available in the trend line graph and table (upper right corner box on State & County Dashboard pages).

NOTE: Data for 2018 are only available on trend line graph and corresponding table and not displayed on maps or quick stats because full year 2018 data are not yet available.
02/11/2019
NEW! Preliminary Second Quarter 2018 Mortality Trend Data
  • Preliminary second quarter 2018 (April - June 2018) mortality trend data including estimated number of fentanyl deaths, are now available.
UPDATED - Preliminary First Quarter 2018 Mortality Trend Data
  • Preliminary Q1 2018 (January - March 2018) mortality trend data, have been updated to reflect the most recent death file available.
Caution: Not all 2018 deaths may be recorded at this time, which may result in an undercount until all cases are included and 'pending' cases are resolved.

NOTE: Overall 2018 trends, including estimated number of fentanyl deaths, may have changed due to the resolution of pending cases. The updated preliminary data are now available in the trend line graph and corresponding table (upper right corner box on State & County Dashboard pages). These data are not displayed on maps or quick stats because full year 2018 data are not yet available.
02/11/2019
NEW! First & Second Quarter 2018 Morbidity (Hosp.) Trend Data
  • First and Second Quarter 2018 (January - June 2018) Hospital discharge trend data from OSHPD are now available in the trend line graph and table (upper right corner box on State & County Dashboard pages) NOTE: Data for 2018 are only available on trend line graph and corresponding table and not displayed on maps or quick stats because full year 2018 data are not yet available.
UPDATED - 2015-2017 Hospital Discharge Data
  • Due to coding changes, hospital discharge data for 2015-2017 have been updated. This update may affect counts or rates for 2015-2017 posted previously on the Dashboard.

11/30/2018
New! Second Quarter 2018 CURES Trend Data
Second quarter 2018 (April - June 2018) opioid prescription data from the Department of Justice (DOJ) CURES database are available in the trend line graph and table (upper right corner box on State & County Dashboard pages).

NOTE: Data for 2018 are only available on trend line graph and corresponding table and not displayed on maps or quick stats because full year 2018 data are not yet available.
11/30/2018
UPDATED - Preliminary First Quarter Mortality
Preliminary Q1 2018 (January - March 2018) mortality trend data, have been updated to reflect the most recent death file available from CHSI (Center for Health Statistics and Informatics). Overall trends, including estimated number of fentanyl deaths, may have changed due to the resolution of pending cases. The updated preliminary data are now available in the trend line graph and table (upper right corner box on State & County Dashboard pages).

Caution: Not all deaths may be recorded at this time, which may result in an undercount until all cases are included and 'pending' cases are resolved.
10/25/2018
New! Second Quarter 2018 Morbidity (ED) Trend Data
Second quarter 2018 (April - June 2018) morbidity Data - Emergency Dept. discharge trend data from OSHPD are now available in the trend line graph and table (upper right corner box on State & County Dashboard pages)

NOTE: Data for 2018 are only available on trend line graph and corresponding table and not displayed on maps or quick stats because full year 2018 data are not yet available.
10/03/2018
UPDATED - Final Mortality Data for 2017
Mortality Data for 2017 have been updated to reflect the official 2017 California Comprehensive Master Death File from CHSI (Center for Health Statistics and Informatics). Updates to 'pending' cases in the preliminary file used previously has resulted in changes to death numbers, including number of fentanyl deaths, previously published on the dashboard.
10/03/2018
    NEW! Preliminary First Quarter 2018 Mortality Trend Data
  • Preliminary Q1 2018 (January - March 2018) mortality trend data, including estimated number of fentanyl deaths, are now available in the trend line graph and table (upper right corner box on State & County Dashboard pages).
    Caution: Not all deaths may be recorded at this time, which may result in an undercount until all cases are included and 'pending' cases are resolved.
  • NEW! First Quarter 2018 Morbidity Trend Data
  • First quarter 2018 (January - March 2018) morbidity data - Emergency Dept. discharge trend data from OSHPD are now available in the trend line graph and table (upper right corner box on State & County Dashboard pages)
  • NEW! First Quarter 2018 CURES Trend Data
  • First quarter 2018 (January - March 2018) opioid prescriptions data from the Department of Justice (DOJ) CURES database are now available in the trend line graph and table (upper right corner box on State & County Dashboard pages).
NOTE: Data for 2018 are only available on trend line graph and corresponding table and not displayed on maps or quick stats because full year 2018 data are not yet available.

    NEW! 2017 Morbidity Data - Hospital In-Patient Discharge
  • Full year 2017 morbidity data - OSHPD hospital in-patient discharge data now available.

10/03/2018
UPDATED - Population Data for 2017
Population Data for 2017 has been updated to use current CDC Wonder data. In an effort to provide the most timely data possible, the California Department of Public Health creates population estimates for the most current year (e.g., 2018) using data obtained from the Department of Finance Population Estimates. These population estimates are used until the final estimates created by CDC are made available, usually in July of the next year.
10/03/2018
Bug Fixes - Thank you for reporting issues!
  • Bug in Demographic Indicators table had been fixed

6/13/2018
NOTICE OF CORRECTION - Fentanyl-related Deaths
The California Department of Public Health (CDPH) has discovered an error in the previously reported number of 2017 fentanyl-related overdose deaths reported on the Opioid Overdose Dashboard. The correct number of fentanyl-related overdose deaths is 373, exactly one-half of the originally reported number of 746. No other indicators or years of data represented on the Dashboard are affected. There remains a substantial one-year increase in the number of fentanyl-related deaths (57% increase from 2016) which is an example of this dynamic and growing public health issue. We apologize for any inconvenience.
4/27/2018
NEW 2017 CURES Data
NEW 2017 Opioid Prescriptions data from Department of Justice (DOJ) CURES database.
4/27/2018
NEW 2017 Mortality and Morbidity Data
  • PRELIMINARY 2017 Mortality data - including fentanyl-related fatalities based on text search of death certificates; Caution: Not all 2017 deaths may be recorded yet, which may result in a undercount until all cases are included and 'pending' cases are resolved.
  • NEW 2017 Emergency Department data from OSHPD

4/27/2018
2017 Population Data
2017 Population estimates are created using both CDC Wonder and the California Department of Finance population data because CDC Wonder doesn't have 2017 population estimates available.
3/14/2018
Updated 2016 Mortality & Morbidity Data
  • FINALIZED 2016 Mortality Data - including fentanyl-related fatalities
  • NEW 2016 Emergency Department data from OSHPD
  • NEW 2016 Hospitalization (i.e. In-Patient) data from OSHPD

11/3/2017
NEW Downloadable State Snapshot Report
Under the State Dashboard link in the sidebar, you will see a new State Report button. Clicking this button will generate a downloadable snapshot report of selected dashboard indicators. The new report is based on the last 12 quarters, and will automatically update as new data is released. Please email with feedback on this new feature.
11/3/2017 County-level Data Download Function UPDATE
Downloading indicator trends over time can be found using the time-plots on the County Dashboards. When you compare a selected county with the state or another county, the comparison area will now be included in the downloadable .csv file.
11/3/2017
NEW Help Feature
In the upper right corner of the Dashboard, a new help function is available for select pages. On the home page, and State and County dashboard pages it will walk you through the various features of that page. Give it a try and take the tour!
10/11/2017
NEW Preliminary Fentanyl Overdose Indicator
A new, preliminary fentanyl overdose indicator is now available on the dashboard. Importantly, this indicator is based on a text search of death certificates and likely represents an undercount of actual fentanyl deaths in California. As a preliminary indicator , it may be subject to updates and may change as our text search algorithm continues to evolve. Please check the Data Definitions page for more details.
10/11/2017
NEW Downloadable County Snapshot Reports
Under the County Dashboard link in the sidebar, you will see a new County Report button. Clicking this button will generate a downloadable snapshot report of selected dashboard indicators. The new reports are based on the last 12 quarters, and will automatically update as new data is released. Please email with feedback on this new feature.
8/18/2017
2016 Prescription Drug Indicator UPDATE
Due to an unforseen issue, we had to update our 2016 prescription drug data released on 8/4/2017. Buprenorphine was unintentionally included in our data used to create multiple indicators. The issue primarily affected MME calculations, as buprenorphine is a strong opioid. Please review indicators to see how this update may have affected rates in your area.
8/18/2017
2016 PRELIMINARY Mortality Data Available
The dashboard now includes preliminary mortality data for 2016. Rates and counts may change when final 2016 data are released . Morbidity data is still unavailable for 2016.
8/4/2017
2016 Prescription Drug Data Available
The dashboard now includes prescription drug data for 2016.
4/21/2017
Buprenorphine Indicator Update
An an issue with our buprenorphine measure - a key indicator of MAT expansion - was brought to our attention. The indicator has subsequently been updated.
3/27/2017
********ALL NEW DATA*********
  • Everything you thought you could learn from the Dashboard has changed!
  • New 2015 data at the state, county, and zip code level!
  • New quarterly and annual rates!
  • Counts available for the first time at the state and county levels!
  • Examine indicators by sex, age, or race/ethnicity!

1/4/2017
New Data Exploration Tools
Two new tools have been added for exmaining indicator co-occurance at the county level. The County Bivariate Map and Bubble Plot allow for the display of multiple indicators simultaneously. You can find the new tools under the Explore link in the sidebar.
12/28/2016
Bug Fixes - Thank you for reporting issues!
  • Maps now include a title and outlines for easier viewing.
  • Bug in % Change Bar Graph has been fixed.
  • Broken links to CDPH and Program websites fixed.
  • Headers added to data downloads.
  • County name and Zip Codes added to Rank Bar Graphs.
  • Principle Diagnosis Code typo for Heroin has been fixed.

11/09/2016
New Dashboard Video Tutorials Available!
The Using the Dashboard now has six videos demonstrating the basics of dashboard use, including how to customize the displays and download data. Maximize them on your screen for the best viewing experience. Each video is 3-4 minutes.
11/01/2016
California Opioid Overdose Surveillance Dashboard Version 2 is released
Changes include:
  • 'California Quick Stats' (high-level counts of featured indicators) and 'Dashboard Updates' info-box.
  • New 'Using the Dashboard' page that will provide instructions and tutorials on use.
  • Larger maps and graphs.
  • Downloadable data for each graph.
  • Revised rate change table.

10/05/2016
2015 CURES data are now available at the state and county levels only.
The data are from CURES 2.0 and reflect unduplicated counts of patients. All CURES 1.0 data have been removed, which included zip code level prescription drug data. CURES 1.0 data included duplicated patient counts and was only available up to 2013. Zip code level prescription drug data will be available soon.
9/22/2016
Califronia Opioid Overdose Surveillance Dashboard goes live
Understanding the Data

The data used in this application was gathered from several sources:

  • Mortality files provided by CDPH Vital Statistics
  • Emergency Department Visit & Inpatient Discharge Data provided by OSHPD
  • Controlled Substance Utilization Review and Evaluation System (CURES) prescription drug data

  • Both crude and age-adjusted rates are available for each indicator.

    Crude death rates equal the total number of deaths during a specific year for a given cause of death (i.e. heroin overdose), divided by the population and multiplied by 100,000. For example, a crude death rate of 20 for heroin overdoses would mean that there were 20 resident deaths from heroin overdose per 100,000 population for a given year. The same approach was used to calculate crude incidence rates for emergency department visits and hospitalizations due to, for example, opioid overdoses.

    Age-adjusting the rates ensures that differences in incidence or deaths from one year to another, or between one geographic area and another (i.e. county-to-county), are not due to differences in the age distribution of the populations being compared.

    All prescription drug measures are based on counts of either prescriptions or residents meeting some criteria (i.e. taking 100+ MMEs of prescription opioids), and divided by the population and multiplied by 1,000. Please note that prescription drug indicators are per 1,000 residents unless otherwise noted.

    Please visit the Data Definitions and Technical Notes page for detailed descriptions of how each indicator was calculated, assumptions regarding the data, data suppression, and any limitations.

    Using this Application

    There are two dashboards available for use. Both the State Dashboard and the County Dashboard (links available in the sidebar) display data with an emphasis on where the opioid overdose epidemic is most acute (i.e. by county and zip code), and how it has changed over time in these areas.

    Look for the following when navigating the site:

    - Collapses or 'hides' the sidebar. For some screen sizes (i.e. 1078x768), collapsing the side bar may improve viewing of the dashboard. If not, we recommend adjusting your browser window.
    - Settings for graphs or tables. Each window has an analytic focus and is customizable by clicking the 'settings' icon in each window. Settings include but are not limited to:
  • Data Source
  • Total population or demographic group(s)
  • Type of rate to display (crude or age-adjusted)
  • Year or quarter to display (all graphs default to the most current year of data)
  • Data Indicator (please review the Data Definitions page)
  • Geography (depends on the graph)

  • Clicking, Hovering, Scrolling, & Dragging All of the graphs and maps are dynamic, which means they respond to clicking, hovering over, scrolling or dragging elements. The maps will zoom by scrolling, move by dragging (like Google Maps), and will display data for colored geographic areas upon clicking. All of the graphs respond to clicking and dragging. You can reset the graphs by double-clicking. All of the bar charts will display data values by hovering your mouse over the bars. We recommend exploring the graphs in order to achieve the rendering of the data desired.

    Dashboard Video Tutorials

    Click on a topic to play video. Video may take a few seconds to load.
    Based on prior version of dashboard - some concepts may no longer apply.

    Technical Notes for this Application

    Cause-of-death classification

    Mortality statistics are compiled in accordance with World Health Organization (WHO) regulations specifying that WHO member nations classify and code causes of death in accordance with the current revision of the International Statistical Classification of Diseases and Related Health Problems (ICD). ICD provides the basic guidance used in virtually all countries to code and classify causes of death. It provides not only disease, injury, and poisoning categories but also the rules used to select the single underlying cause of death for tabulation from the several diagnoses that may be reported on a single death certificate, as well as definitions, tabulation lists, the format of the death certificate, and regulations on use of the classification. Causes of death for data presented in this application were coded according to ICD codes presented in the Data Dictionary.

    Principle diagnosis & External cause classification

    Morbidity statistics are compiled in accordance with The Centers for Medicare and Medicaid Services (CMS) and the National Center for Health Statistics (NCHS) guidelines for coding and reporting using the International Classification of Diseases, Clinical Modification. The Clinical Modification is a morbidity classification published by the United States for classifying diagnoses and reason for visits in all health care settings. Both ICD-9-CM and ICD-10-CM are based on the respective ICD-9 and ICD-10 statistical classifications of disease published by the World Health Organization (WHO). Morbidity data presented in this application were coded according to ICD-9-CM and ICD-10-CM codes described in the Data Dictionary. Importantly, all morbidity data for the fourth (4th) quarter of 2015 forward has been coded using ICD-10-CM.

    Population denominators

    Population estimates used for computing rates orignate from the Bridged-Race Population data available on the Centers for Disease Control and Prevention (CDC) WONDER. Bridged-race population estimates are produced by the U.S. Census Bureau in collaboration with the National Center for Health Statistics (NCHS) and released by NCHS. The population estimates used in this applciation are based on interecensal (between 2000 & 2010) and postcensal (between 2011 forward) estimates. Changes in rates between years in part reflect differences between population estimates. Quarterly rates are based on the the population estimates for midpoint of the year containing the quarter. Rates for 12-month periods are based on the average of population estimates for each of the included quarters. Note: In an effort to provide the most timely data possible, the California Department of Public Health creates population estimates for the current year using data obtained from the Department of Finance Population Estimates. These population estimates are used until the final estimates created by CDC are made available, usually in July of the following year (e.g. for 2017, population estimates were used until the CDC estimates were released in late July of 2018).

    Suppression of Counts

    Counts are now available at the state and county levels. However, given the dashboard also presents indicators by selected demographic groups, for some some combinations of time, geography, and demographic categories are either fully suppresed, or are partially suppressed for count greater than five cases. Please review the Data Suppression document for more information.

    Computing rates

    Mortality and Morbidity rates are on an annual basis per 100,000 estimated population. Rates based on CURES data are on an annual basis per 1,000 estimated population, except for Milligrams of Morphine Equivalents (MMEs), which are estimated per resident. Age-adjusted rates are used to compare relative risks over time or between geographic areas; however, they should be viewed as relative indexes rather than as actual measures of risk. All age-adjusted rates were computed by the direct method; that is, by applying age-specific death rates to the U.S. standard population (relative age distribution of year 2000 projected population of the United States). Rate estimates are subject to sampling error and are less reliable when based on small counts. We encourage you to examine the confidence intervals when presented. Formulas used in the computation of rates in this application, and associaed standard errors and confidence intervals, can be found at:

    Rate Algorithms

    Statistical differences

    Statistical differences presented within this application are based on independent rates and are conservative approaches. We determined whether a significant difference exists between rates by comparing the respective 95% confidence intervals for both rates. As a conservative statistical test, we consider the differences not significant if the intervals overlap. For example, if we compared mortality rates for two consectuive years, and found Year 1 had an interval of 12.3-15.7 and the interval for Year 2 was 14.5-16.3, we would conclude there is no significant difference between the two rates. Please note that the smaller the number of events upon which the rate is based, the larger the confidence interval will be. Therefore, two rates based on small counts are less likely to be different.

    California Department of Public Health Opioid Surveillance Publications

    Data publications about opioid-related issues in California can be found here.


    Data Briefs

    • Patterns of Opioid-Related Overdose Deaths in California, 2011-2017

    • California continues to face a serious public health crisis with the dynamic and rapidly changing opioid epidemic having substantial health and economic impacts. This brief describes opioid-related overdose deaths over time, and demographic differences among different types of opioid overdoses.


    California Dashboard

    Explore Opioid Data Indicators