The dataset lists estimated percentages of serious mental illness and any mental illness in the past year with lower and upper confidence levels.
Any mental illness is defined as having a diagnosable mental, behavioral, or emotional disorder, other than a developmental
or substance use disorder, as assessed by the Mental Health Surveillance Study (MHSS) Structured Clinical Interview for the Diagnostic
and Statistical Manual of Mental Disorders—Fourth Edition—Research Version—Axis I Disorders (MHSS-SCID), which is based on the
4th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV).
Serious mental illness (SMI) includes individuals with diagnoses resulting in serious functional impairment.
Substate, state, and census region estimates, along with the 95 percent confidence (credible) intervals, are based on a survey-weighted hierarchical Bayes estimation approach and are generated by Markov Chain Monte Carlo techniques.
For the “Total U.S.” row, design-based (direct) estimates and corresponding 95 percent confidence intervals are given.
The column labeled “Map Group” can be used to distinguish substate regions included in the maps from other substate regions.