Why are death rates sometimes flagged as “Unreliable” or “Suppressed”?
Death rates based on counts of twenty or less (death count <=20) are flagged as "Unreliable". A death rate based on fewer than 20 deaths has a relative standard error (RSE(R))of 23 percent or more. A RES(R ) of 23 percent is considered statistically unreliable. Death counts and death rates are "Suppressed" when the data meets the criteria for confidentiality constraints. See Assurance of Confidentiality for more information.
