Hospitalizations

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Purpose and history
The purpose of the statistics on hospitalization is to contribute to a description of the relationship between social conditions and admissions to hospitals. 1990 is the first year covered by the statistics. Since then the content of the statistics has continuously been extended. E.g. in 1994 the statistics was supplemented with a number of new variables to describe the social conditions at family level.

Description of Contents
The statistics cover admissions to somatic hospital departments within one calendar year. The statistics deal with the number of admissions, the number of bed days and the most important diagnosis. Furthermore, the statistics show how the use of hospitals varies with a range of social conditions, such as family, education, occupation, income, etc.

Statistical Concepts
The population of the statistics is admissions to stationary somatic hospital departments within one calendar year.

If a person during a stay in hospital is moved from one department to another it will count as two admissions.

The statistical units are admitted people, admissions and bed days.

In the statistics the concept admission rate is used. It is defined as the part of a specific population group, which has been admitted during the year. The use of hospital varies highly with age. Therefore, in some of the statistics, an age standardisation has been effected. As from 2000 standardisation for socio-economic status concerning the adults and for the family's level of education concerning the children has furthermore been effected.

The statistics are distributed by sex, age, diagnosis, region and a number of background variables: type of family, occupation, job function, education, social benefit, type of dwelling and origin.

For every person who has been resident in Denmark during the calendar year the register stores the following information regarding the person's use of hospitals:

• Number of admissions and number of bed days within four different causes of hospitalization: Own sickness, Relatives accompanying relatives (left out as from 2002), Pregnancy/delivery and Symptoms, signs and ill-defined conditions
• Dominating diagnosis (the diagnosis for which most bed days in hospitals was recorded) according to groups in the classification of diagnoses: 23 grouping (up to and including 2005) and the S-list. The two groupings are Danish short-lists of WHO's International Classification of diseases, version 10.

The contents of the S-list (also called the 99-grouping) can be found by using the link in the note to tables UD11, UD33A,
PA11 and PA11A in StatBank Denmark, cf. item 5.1.

• Total number of different diagnoses according the S-list (up to and including 2005).
• Number of bed days with the dominating diagnosis according to the 23 grouping (up to and including 2005) and the S-list
• Information on whether the person has been admitted or not within the latest 4 years, and if so, with which cause(s) of hospitalization (up to and including 2005).

For every admission during the calendar year the register stores information on:

• Code for hospital and hospital department to which the admission took place (up to and including 2005)
• Dates of admission and discharge
• Type of hospitalization (emergency or non-emergency)
• Code for cause of admission, that is sickness, accident, violence etc.(up to and including 2005)
• In cases where the admission is caused by an accident the register contains information on the circumstances under which the accident happened (up to and including 2005)
• Main diagnosis grouped according to the 23 grouping and the S-list
• Duration of the admission

Number of days in relation to any previous admission in the calendar year (up to and including 2005).

  Read more about the statistics on 'Hospitalization' in our Declarations of contents

Releases

Last updated:	25 May 2009
Scheduled releases:	14 December 2010 for the period 2008

Contact

Kamilla Heurlen
Telephone:	+ 45 39 17 34 93
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