National Drug-Related Deaths Index (NDRDI)

Data Collection Type
National data collections of health and social care in Ireland
Organisation

Health Research Board- The National Health Information Systems Unit in conjunction with the Department of Health and the Department of Justice.

Year established

2005. Subset of data were retrospectively collected from 1998.

Statement of purpose

Epidemiological monitoring of drug- and alcohol-related deaths, and deaths among people who use drugs and among alcohol dependent persons in Ireland. The objective of the Index is to provide high quality data so that the State can respond in a timely manner with accurate data on drug-related mortality.

Does not include deaths caused by the drug or alcohol use of another person if the deceased does not meet the NDRDI inclusion criteria above.

Does not include deaths due to medical misadventure if the deceased does not the NDRDI inclusion criteria above.

Coverage (geographical and temporal)

National coverage.
Data is collected annually.

Example of temporal coverage: 2017 data was collected between September 2018 to May 2019 and published in December 2019.

Description/Summary

The National Drug-Related Deaths Index is an epidemiological database which records drug- and alcohol-related deaths, and deaths among people who used drugs and among alcohol dependent persons in Ireland.

Data users

- Policy makers
- Service providers
- Academics
- Advocacy groups
- International agencies which monitor data on drug-related mortality.

Data content

Administrative details; demographic details; socio-economic information; drug use at time of death; other risk behaviours; drug treatment history; toxicology; manner and cause of death.

Data dictionary

Currently under revision as part of HRB LINK on-line data entry portal project.

National-level identifier variables

PPSN is not collected. There is a facility to collect IHI built into the new on-line portal.

Equity stratifiers

Place of residence
Sex (including transgender)
Self defined sexual orientation
Country of birth
Ethnicity
Occupation
Employment status.

Data collection methodology

NDRDI staff manually collect data on an annual basis from closed coronial files relating to all deaths where a history of drug use and or alcohol dependency was recorded or where drug or alcohol was implicated in the death. Data from the other agencies is submitted in electronic format on an annual basis.

Clinical coding scheme

Cause and manner of death as recorded on the Coroner’s Certificate in the Coronial files, or the cause of death as recorded on the General Mortality Register through the Central Statistics Office are coded using WHO ICD10.

From 2019 onwards the Anatomical Therapeutic Chemical (ATC) drug classification system is incorporated into the NDRDI.

Size of national collection

Approximately 1,400 average number of records created annually.

Publication frequency

Data is published annually.

Accessing data

For data requests: https://www.hrb.ie/data-collections-evidence/alcohol-and-drug-deaths/request-data/

Open data portal access

No.

Email contact
Telephone contact
Other comments

A new on-line system will be completed for the NDRDI in 2022 as part of the HRB LINK project to improve data security.