Dear All
Age is time after birth - we are not going to change that.
We have agreed that we need to record one more date in the demographic
model - which is 'approximate date of conception', or 'expected date of
birth'
Which do people prefer - I chose the latter as it will probably be a cut
and paste from the mothers record and does not get into the when did I
conceive stuff.
What do others think?
Finally....I am proposing that we think about a new class (?datatype)
such as 'DV_Textural_Ordered' for dealing with named quantities - which
have DV_ORDERED or DV_INTERVAL as their value - a fuzzy quantity.
Examples in XML might be something like:
<DV_Textural_ordered>
<text>"Birth"</text>
<value type="DV_QUANTITY">
<magnitude>0<magnitude>
<units>"days"</units>
</value>
</DV_Textural_ordered>
<DV_Textural_ordered>
<text>"Adolescence"</text>
<value type="DV_INTERVAL">
<lower type="DV_QUANTITY">
<magnitude>12<magnitude>
<units>"years"</units>
</lower>
<upper type="DV_QUANTITY">
<magnitude>18<magnitude>
<units>"years"</units>
</upper>
</value>
</DV_Textural_ordered>
<DV_Textural_ordered>
<text>"Three times a day"</text>
<value type="DV_TIME_SPECIFICATION">
<repeat>"FREQ=BYDAY;OCCURRENCES=3"</repeat>
</value>
</DV_Textural_ordered>
<DV_Textural_ordered>
<text>"Three times a day"</text>
<value type="DV_TIME_SPECIFICATION">
<repeat>"0800;1400;2000"</repeat>
</value>
</DV_Textural_ordered>
<DV_Textural_ordered>
<text>"Last night"</text>
<value type="DV_INTERVAL">
<lower type="DV_TIME">
<value>20:00<value>
</lower>
<upper type="DV_TIME">
<value>06:00<value>
</upper>
</value>
</DV_Textural_ordered>
The problem is that they would not be available through inheritence - so
the possibility of entering these classes would have to be constrained.
This is just thinking out loud.
Cheers, Sam
Gerard Freriks wrote:
> Dear all,
>
> It is fine for me when we can agree that we mean by 'Age' time after birth.
>
> How will we name and define concepts like: youth, post conception, post
> gestation, middel aged, elderly?
>
> Gerard
> -- <private> --
> Gerard Freriks, arts
> Huigsloterdijk 378
> 2158 LR Buitenkaag
> The Netherlands
>
> +31 252 544896
> +31 654 792800
> On 31 Jan 2005, at 19:10, William E Hammond wrote:
>
> For an age, I agree that the date of birth is adequate as long as you
> remember people do not age after they die. It is also convenient to
> have a
> reference time mark for many things, including conception, start of a
> course of treatment. Adjectives and nouns are difficult to put into
> algorithms unless the definitions are precise.
>
> Ed Hammond
>
-
If you have any questions about using this list,
please send a message to d.lloyd at openehr.org
