Incidence of poor mental health days – the average number of days in the previous 30 that a person could not perform work or household tasks due to mental illness –highlight the fact that good health outcomes preclude days in which mental health prohibits an individual from accomplishing everyday activities. 

The self-reported data relies on the accuracy of each respondent’s estimate of the number of limited activity days in the previous 30 days. The ranks and based on data from the Behavioral Risk Factor Surveillance System, Centers for Disease Control and Prevention.

Poor mental health days are a general indication of the population’s ability to function on a day-to-day basis.