Interesting Gerard But it is possible to have an objective measure of difference that might be flagged - such as a change of > 20 standard drinks in one year in the alcohol intake - or a change in weight of 10kg in one year..
I agree that there is a subjective element to this - but it is not cut and dried. Cheers, Sam > -----Original Message----- > From: owner-openehr-technical at openehr.org > [mailto:owner-openehr-technical at openehr.org]On Behalf Of Gerard Freriks > Sent: Wednesday, 10 July 2002 3:31 PM > To: Thomas Beale; open-ehr technical > Subject: Re: Delta flag - HL7 > > > Sam, > > > Don't confuse two things. > > -1- A measument is a measurement. It is raw data. > -2- An interpretation of raw data by a human or agent or Archetype > transforms this in Information. > > Any interpretation is a view on raw data plus a (subjective) > interpretation. > And systems should show this and the author of this subjective > interpretation. > > Boundary problem: > A radiologist interterprets a complex x-ray. The x-ray is the raw > data. The > radiology note is the attributable view on raw data plus the subjective > interpretation. > Now this note is sent to a GP. > At the receiving GP system this note is treated as raw data. Measurement. > After acceptation by the GP and submission this raw data to the record it > can be used to interterpret it. Etc, etc. > > The delta-flag is not an attribute to data but a subjective interpretation > recorded in a subjective view. > > Gerard > > > On 10-07-2002 06:16, "Thomas Beale" <thomas at deepthought.com.au> wrote: > > > > > > > Sam Heard wrote: > > > >> Hi > >> > >> The quantity data type has the possibility of revealing > changes that are > >> unexpected. Let us say for example that you weigh someone and > their weight > >> is 80 Kg - and they tell you that they weighed 100 Kg 3 months > ago. Or that > >> a Hb was 151 and it is now 121 - still normal but has changed > a lot and you > >> may want to have this brought to your attention. > >> > >> ALSO - we have not differentiated at the RM level between > information from > >> the clinician and that given by the patient. > >> > > why do you say that - ENTRY.provider does this. > > > >> So OBSERVATION covers both - > >> sure we can say where it came from but the weight example > really shows that > >> it may be from both. > >> > > not sure what you mean here.... > > > >> For this reason - I would like to see the Delta (or change) > attribute to > >> quantities to enable us to say if this measurement has gone up > or down more > >> than expected. > >> > > just one little question: when does it get turned on? What is "a lot", > > or "more than expected"? > > > > - thomas beale > > > > > > - > > If you have any questions about using this list, > > please send a message to d.lloyd at openehr.org > > -- <private> -- > Gerard Freriks, arts > Huigsloterdijk 378 > 2158 LR Buitenkaag > The Netherlands > > +31 252 544896 > +31 654 792800 > > > - > If you have any questions about using this list, > please send a message to d.lloyd at openehr.org > - If you have any questions about using this list, please send a message to d.lloyd at openehr.org
