DV_QUANTITY or DV_PROPORTION

I'm wondering which is the correct use of DV_PROPORTION and DV_QUANTITY...
When using DV_QUANTITY with property attribute 'proportion' and when using
DV_PROPORTION? Why can not we use always a DV_PROPORTION for proportion!?

Regards
leo

Hi Leo,

The standard advice is always to use DV_PROPORTION. I am not sure of
the background to why proportion i also available as a DV_QUANTITY.

Ian

Dr Ian McNicoll
office / fax +44(0)141 560 4657
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ian@mcmi.co.uk

Clinical Analyst Ocean Informatics
Honorary Senior Research Associate, CHIME, University College London
openEHR Archetype Editorial Group
Member BCS Primary Health Care SG Group www.phcsg.org / BCS Health Scotland

Hi,

I think it was there before DV_PROPORTION was introduced in the data
types. It will be nice if an archetype editor can suggest
DV_PROPORTION instead of DV_QUANTITY when the 'proportion' property is
selected in the archetype editor.

Cheers,
Rong