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Hospitalization

Contact info

Personal Finances and Welfare, Health Statistics
Susanne Brondbjerg
+45 39 17 35 46

snb@dst.dk

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Hospitalization

The purpose of the hospitalisation statistics is to contribute to a description of the relationship between social conditions and admissions to hospitals. The first year covered by the statistics is 1990. Since then, the content of the statistics has continuously been extended. E.g., in 1994, the statistics were supplemented with a number of new variables at family level. Starting from 1999, the statistics have been supplemented with information about ancestry. Starting from 2006, the statistics include outpatient treatments and emergency room visits.

Statistical presentation

The statistics cover admissions to and outpatient treatments at public somatic hospital departments within one calendar year. The statistics are based on the National Hospital Discharge Register from Statens Seruminstitut (SSI) combined with a number of background details from other registers. The statistics show e.g. how the use of hospitals varies with a range of social conditions, such as family, education, occupation, accommodation, parentage, and geography with standardisation for sex and age.

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Statistical processing

Data are from the National Hospital Discharge Register and are received annually. Information is applied about admissions to, outpatient treatments at and emergency room visits to public somatic hospital wards during the calendar year. If a person is transferred during a hospital stay from one hospital ward to another, this will count as two admissions. The number of bed days in connection with admissions is applied. Accordingly, the units in the statistics are persons, admissions and bed days, outpatient treatments and emergency room visits. The statistics are broken down by sex, age, diagnosis, region of residence and a number of background variables: family type, occupational group, education, type of accommodation, ancestry and job function. (Up to and including 2008, the statistics were also broken down by predominant social security benefit).

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Relevance

Statistics Denmark estimates that these statistics meet the users’ needs. We estimate on a regular basis whether there is a need for adjustments of contents.

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Accuracy and reliability

The National Hospital Discharge Register is validated by the Danish Health Data Agency and the accuracy of the register data must be considered to be high because the registration has a long tradition and a high priority for administrative purposes. Accordingly, the overall accuracy of the Hospitalisation rate is high.

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Timeliness and punctuality

The statistics are published 5-10 months after the end of the year. The punctuality is high.

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Comparability

The comparability over time is good.

In certain areas, however, we must pay attention: - Transition from diagnosis classification ICD08 to ICD10 in 1994 - Outpatient treatments and emergency room visits included from 2006 - Data break between 2013 and 2014 for outpatient treatments and emergency room visits. - Structural reform 2007, redivision of local government - Income replacing benefits not included after 2007

Eurostat and the OECD make comparable data collections and publications in this field. There are a number of organisational and institutional conditions that we must keep in mind when comparing countries.

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Accessibility and clarity

“Nyt” (News) from Statistics Denmark and the Statbank, Statbank tables on hospitalisation rates (https://www.dst.dk/en/Statistik/nyt/relateret?pid=580). Statistical Yearbook and Statistical Ten-Year Review contain selected sections about hospitalisation rates. The journal “Sociale forhold, sundhed og retsvæsen (Statistiske Efterretninger)” (social conditions, health and legal system (statistical information)), the series Sygehusbenyttelse (hospitalisation rates) was last published for the year 2012.

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