Hospitalisations National Basic Registration Hospital Care (01-01-2013-02-01-2013)

This file contains data on hospitalisations in Dutch hospitals of persons registered in the Basic Registration Persons (BRP). The data comes from the National Basic Registration of Hospital Care (LBZ) of Dutch Hospital Data (DHD). More information on how to access the data: > https://www.cbs.nl/nl-nl/onze-diensten/maatwerk-en-microdata/microdata-zelf-onderzoek-doen ### Methodology The data on hospital admissions are from the National Basic Registration of Hospital Care (LBZ). These hospitalisations are linked to the Basic Registration Persons (BRP) in order to identify individuals. For the most part, the link takes place on the basis of pseudonyms based on Citizen Service Number (BSN) and for a small part on the combination of birth date, gender and postcode. The yield of the GBA coupling of LBZ recordings is 97.3 % in 2013, 98.8 % in 2014 and 99.2 % in 2015. This file displays only the records associated with the BRP. As a Person ID, the variable RINPERSOON is added to the files, a meaningless and dimensionless number, which can be used to link to other CBS SSB files. In a later version of this file, a higher weight will be given with which the hospital admissions (linked to the BRP) can be increased to all hospital admissions. However, the percentage of recordings not included in LBZBASISJYYY is limited (see & description of population '). The LBZ files are there since 2013. For the registration years 1995 to 2012, there are files of hospitalisations based on the LMR, the predecessor of the LBZ. For the recordings missing in the LMR, records were imputed (& generated ') by the registration holder. However, these records could not be linked to the BRP and were not included in CBS’s linked LMR files. From 2013 onwards, for the previously missing recordings, real microrecords are usually delivered to the LBZ by the hospitals. These so-called 'incomplete records ' contain some data about the admission and the patient, but for example no diagnoses. These records can largely be linked to the BRP and are then recorded in LBZBASISJJJY. In 2013 and 2014, some hospitals had not or did not deliver these incomplete records to the LBZ. For these recordings, CBS requested some recording data from the hospitals, so that they could largely be linked to the BRP and could be added to LBZBASISJJJJ as incomplete records. Thus, for 2013-2015, almost all recordings are present in LBZBASISJYY, with only part of the records missing the main diagnosis and main operation and some other variables in a small part of the records. This 'incomplete records ' concerns 21.4 % of hospitalisations linked to the BRP in LBZBASIS2013, 11.1 % in LBZBASIS2014 and 5.5 % in LBZBASIS2015. Disaggregated by care type, there were 14.9 % incomplete clinical shots and 26.7 % incomplete daily admissions in 2013 in LBZBASISJYYY, 3.0 % incomplete clinical shots in 2014, 19.6 % incomplete day shots and 0.3 % incomplete clinical shots in 2015, 12.0 % incomplete daytime shots, and 0.4 % incomplete 'long-term observations without overnight stay & #039; ### Population Hospitalisations that have taken place in all general and academic Dutch hospitals. In addition, hospitalisations were admitted within two short stay categorical hospitals (cancer clinic and eye hospital). In the file are both day shots, clinical shots and from 2015 also & long-term observations without overnight stay ' registered. Outpatient contacts are not included in this file. Data on admission and dismissal are included in LBZBASISJYY, the main diagnosis and (if applicable) the main operation carried out. All diagnoses recorded during the recording (including side diagnoses) are included in the file LBZDIAGNOSENJJJ. Only hospital admissions linked to the BRP are included in LBZBASISJJJY (see 'Used method ' for more details). This means that 2.7 % of hospital admissions were not included in the stock in 2013, 1.2 % in 2014 and 0.8 % in 2015.