Version History - NICE | The National Institute for Health ...

The method has been tested using a dummy indicator on known HES data, where a comparison can be made, as the provider can be accurately matched to a CCG via the GP Practice code in HES. When tested using this known data, there was a correlation of 0.75, i.e. in 75 out of 100 cases the activity will be correctly matched to the commissioning CCG. ................
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