UR = Unstable Rate. Rates based on numerators less than or equal to 20 may be unstable and should be interpreted with caution.
*To protect an individual's privacy, hospitalizations and ED visit counts from 1 to 5 are suppressed if the underlying population is less than or equal to 100,000.
Note: This table includes only carbon monoxide poisoning events that are unintentional and non-fire related.
** Person-years is equal to the sum of the population for each year.