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03.04.2019 | original article | Ausgabe 2/2019 Open Access

neuropsychiatrie 2/2019

Sampling and weighting of the Austrian Psychiatric Prevalence Survey (APPS)

Zeitschrift:
neuropsychiatrie > Ausgabe 2/2019
Autoren:
Ao. Prof. Mag. Dr. Rainer W. Alexandrowicz, Prof. Mag. Dr. Johann Bacher, Prof. Dr. Johannes Wancata
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s40211-019-0305-6) contains supplementary material, which is available to authorized users.

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Summary

Mental disorders are common and have severe consequences for the patients, their relatives, and society. Mental health care planning requires precise knowledge of the prevalence of psychiatric disorders and details regarding the provided treatment. Because administrative data lack information on persons not in contact with health services, we need epidemiologic studies delivering nationwide information on the prevalence of psychiatric disorders. This requirement induces the need for adequate sampling procedures to collect reliable data, allowing for accurate estimations of mental health care needs, over- and underprovision. This is the purpose of the Austrian Psychiatric Prevalence Survey (APPS).
The present technical report describes the exact procedure how a nationwide sample has been drawn, adopting a stratified cluster sampling scheme. Because such a complex sampling procedure requires an adequate weighting to obtain unbiased population estimates, this report also contains the exact steps to calculate the corresponding weights. This way, the report not only fosters the full disclosure of the sampling strategy of the APPS, it may also serve as a best practice example for similar endeavours.
Zusatzmaterial
Table S1: Population and target samples of the selected districts aged 18-65 by sex. Notes: Percentages show the city shares per province. Bold entries denote provincial capitals; The numbers in angle brackets denote the official district numbers. Due to rounding errors, the total sample sizes are not 500 and 500 but rather 499 and 504. Table S2: Weighting Examples
40211_2019_305_MOESM1_ESM.pdf
Worked example: Applying the weighting formulas to Upper Austria (Oberösterreich)
40211_2019_305_MOESM2_ESM.xlsx
Literatur
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