Emergency Room Suspected Drug Overdose


Emergency Room Suspected Drug Overdose

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A weekly count of suspected overdose-related emergency department visits at Ottawa hospitals.

Date First Published
Update Frequency

• Data is suspected drug overdose-related emergency department visits

• This data is not specific to a particular drug (e.g. heroin, MDMA, or fentanyl).

• Counts include all patients seen at Ottawa hospitals regardless of place of residence.

• Cases of suspected drug-overdose include only patients between the ages of 10 and 64 years. Cases are identified through a classification system that identifies potential overdoses based on the chief complaint at triage;

• Cases are limited to those that are life threatening or potentially life threatening based on a Canadian Triage Acuity Score (CTAS) of 1 or 2. If the CTAS is not available (e.g., for certain Ottawa hospitals), cases are included if the chief complaint is "Overdose";

• Cases may be due to an overdose that is intentional, unintentional, or of undetermined intent. However, cases due to intentional overdoses are removed if possible.

• Cases due to medication overdoses or medication errors are also removed if possible;

• Case counts may change periodically due to recoding of historical data;

• Case counts are likely overestimates of the true number of emergency department visits due to overdose from drugs taken used for non-medical purposes. This is because a chief complaint of "Overdose" may be used in instances of medical errors, for example.


Weekly count with weeks starting on Mondays

Author Jason Haug
Author Email Jason Haug
Maintainer Jason Haug
Maintainer Email Jason Haug


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