The questionnaire was divided in two parts.
Part 1, administered to all respondents, included
screening questions on psychopathology and additional
questions for the assessment of some mood
and anxiety disorders as well as health status and
main demographic characteristics. All respondents
who presented a number of symptoms of specific
mood or anxiety disorders and a probability subsample
of other part 1 respondents were administered
Part 2. Part 2 of the interview included
questions on chronic conditions and disability and
two questions concerning perceived stigma. Selection
probabilities for part 2 of the interview were
incorporated into sample analysis weights so that
survey estimates provide unbiased estimates for
the populations surveyed.