In cardiology, left ventricular mass (LVM) is often indexed to better identify left ventricular hypertrophy. Possible indexations are: - LVM/BSA (body surface area) - LVM/height - LVM/height^2.7 The first and the latter are often used. The units of measurement of the latter is usually g/m2.7 [gram/(meter^2.7)].
In DV_QUANTITY, "units" attribute should be expressed in UCUM unit syntax. UCUM doesn't allow not integer exponent (see http://aurora.regenstrief.org/~ucum/ucum.html#section-Syntax-Rules <http://aurora.regenstrief.org/%7Eucum/ucum.html#section-Syntax-Rules>), so I have the problem that I cannot express the units as g/m2.7. Any suggestion to solve this problem!? Best regards leo -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openehr.org/mailman/private/openehr-technical_lists.openehr.org/attachments/20110428/80f42cee/attachment.html>
