Grouping national sub-acute and non-acute data to AN-SNAP Version 4

Grouping national subacute and non-acute data to AN-SNAP Version 4

Independent Hospital Pricing Authority

Duration: June 2015 – August 2015


In 2013 the Independent Hospital Pricing Authority (IHPA) had commissioned CHSD to develop version 4 of the Australian National Subacute and Non-acute Patient (AN-SNAP) classification. In addition to extensive stakeholder consultation this project included data analysis of national data as well as data obtained from AROC and PCOC. The new classification included classification variables that were previously not part of the national admitted patient collection.

In order to facilitate its current costing and pricing work for the National Efficient Price 2016-17 (NEP16) IHPA contracted CHSD to group its national activity data from 2012-13 and 2013-14 to AN-SNAP version 4.

What we did

The objective of this project was to maximise the number of grouped records in the national data. While some records of the national admitted patient data could have been grouped alone, supplementing the dataset with data from AROC and PCOC greatly increased the number of grouped records because AROC and PCOC included the newly introduced classification variables. The datasets were grouped using the AHSRI QuickSnap grouper software. Due to the absence of a unique identifier, statistical matching had to be used to match records from the different datasets in order to amend AN-SNAP version 4 classes to the national dataset.

In summary, CHSD was able to send back to IHPA the national dataset including the appended AN-SNAP version 4 classes which will be used for NEP16 determination. For the future IHPA has amended its data collection requirements.

Last reviewed: 26 February, 2016

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