CO poisoning ED visits: facts & figures

Emergency department visits for CO poisonings in Minnesota:

Emergency department (ED) visits for CO poisoning can represent a range of CO exposures, from suspected exposure to severe poisonings. These ED visits may result in treatment and release, in hospitalization, or in death. ED visits that subsequently result in hospitalization are counted as inpatient hospitalizations and are counted as an ED visit.


CO poisoning ED visits annual number and rate

Source: MN Hospital Association. CO poisonings are unintentional, non-fire-related. The gap indicates a change in International Classification of Disease coding from ICD9 to ICD10. Rates from 2000-2014 should not be compared to rates from 2015 and later. 

The annual rate of emergency department visits for CO poisoning was highest from 2007 to 2010.

Between 2007 and 2009, Minnesota began implementing a law requiring CO alarms in all single-family homes and multi-dwelling buildings.


CO poisoning ED visits by age and sex 

Source: MN Hospital Association. CO poisonings are unintentional, non-fire-related. 2011-2015

The rate of CO poisoning ED visits is lowest among females aged 65+ and highest among adults between age 15 and age 34. Males have a higher rate of CO poisoningemergency department visits. 


Number of CO poisoning ED visits by month

Source: MN Hospital Association. CO poisonings are unintentional, non-fire-related. 2011-2015

Unintentional, non-fire related CO poisoning emergency department visits follow a seasonal pattern, with more visits in the fall and winter and fewer visits in the spring and summer. During the winter, people use fuel-burning heaters more often, increasing the risk of CO poisoning.