Message-ID: <110341936.8714.1711725139143.JavaMail.confluence@ip-172-30-4-17.ec2.internal> Subject: Exported From Confluence MIME-Version: 1.0 Content-Type: multipart/related; boundary="----=_Part_8713_721120814.1711725139138" ------=_Part_8713_721120814.1711725139138 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Content-Location: file:///C:/exported.html 724. Usage of XML blobs

724. Usage of XML blobs

XML blobs are utilized by filling the column C_METADATAXML = in the table I2B2 with a certain XML data structure which is saved in the d= atabase as a single Character Large Object. They are made for = representing laboratory values and similar observations that uses = qualifying statements like "abnormal" or "primary".

XML blobs are also recommended= for numeric values if the user knows the specific value beforehan= d (EHR ID or a given age).

Theoretically, XML blobs could also be used for representing sim= ple code lists, but there is hardly any advantage compared to i2b2= concept leafs.

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