i2b2 PDO (Patient Data Object - but actually much more)

This is the main means of communication between the cells of i2b2 and can also be used with the Data Loader to import all kinds of data, not just patient data.

Example minimum and maximum set of PDO data

<?xml version="1.0" encoding="UTF-8"?>
<pdo:patient_data xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:pdo="http://www.i2b2.org/xsd/hive/pdo/"
    xsi:schemaLocation="http://www.i2b2.org/xsd/hive/pdo/ ./i2b2_PDO.xsd">

    <visit_dimension_set>

        <!-- Maximum Visit Data -->
        <visit_dimension>
            <encounter_ide source="PULENCTMAP">XDFD45HSDG9578FDFG</encounter_ide>
            <patient_num>12345</patient_num>
            <inout_cd>I</inout_cd>
            <location_cd>MGH</location_cd>
            <location_path>Clinics\MGH\Oral Surgury</location_path>
            <start_date>1999-02-28T13:59:00</start_date>
            <end_date>1999-02-28T13:59:00</end_date>
            <visit_blob/>
            <update_date>1999-02-28T13:59:00</update_date>
            <download_date>1999-02-28T13:59:00</download_date>
            <import_date>1999-02-28T13:59:00</import_date>
            <sourcesystem_cd>RPDRASTHMA</sourcesystem_cd>
            <upload_id>123</upload_id>
        </visit_dimension>

        <!-- Minimum Visit Data -->
        <visit_dimension>
            <encounter_num>1234567</encounter_num>
            <patient_id source="EMP">123456789</patient_id>
        </visit_dimension>

    </visit_dimension_set>

    <concept_dimension_set>

        <!-- Maximum Concept Data -->
        <concept_dimension>
            <concept_path>i2b2\Diagnoses\C0004096</concept_path>
            <concept_cd>UMLS:C0004096</concept_cd>
            <name_char>Asthma</name_char>
            <concept_blob/>
            <update_date>1999-02-28T13:59:00</update_date>
            <download_date>1999-02-28T13:59:00</download_date>
            <import_date>1999-02-28T13:59:00</import_date>
            <sourcesystem_cd>ASTHMADICT</sourcesystem_cd>
            <upload_id>234</upload_id>
        </concept_dimension>

        <!-- Minimum Concept Data -->
        <concept_dimension>
            <concept_path>i2b2\Diagnoses\C0004096</concept_path>
        </concept_dimension>

    </concept_dimension_set>

    <provider_dimension_set>

        <!-- Maximum Provider Data -->
        <provider_dimension>
            <provider_path>BWH\Pathology\B001234567\12345</provider_path>
            <provider_id>B001234567</provider_id>
            <name_char>Doctor, John A., MD</name_char>
            <provider_blob/>
            <update_date>1999-02-28T13:59:00</update_date>
            <download_date>1999-02-28T13:59:00</download_date>
            <import_date>1999-02-28T13:59:00</import_date>
            <sourcesystem_cd>token</sourcesystem_cd>
            <upload_id>345</upload_id>
        </provider_dimension>

        <!-- Minimum Provider Data -->
        <provider_dimension>
            <provider_path>BWH\Pathology\B001234567\12345</provider_path>
            <provider_id>B001234567</provider_id>
        </provider_dimension>

    </provider_dimension_set>

    <patient_dimension_set>

        <!-- Maximum Patient Data -->
        <patient_dimension>
            <patient_id source="EMP">123456789</patient_id>
            <vital_status_cd>Y</vital_status_cd>
            <birth_date>1930-02-28T13:59:00</birth_date>
            <death_date>2001-02-28T13:59:00</death_date>
            <sex_cd>F</sex_cd>
            <age_in_years_num>71</age_in_years_num>
            <language_cd>ENGL</language_cd>
            <race_cd>B</race_cd>
            <marital_status_cd>M</marital_status_cd>
            <religion_cd>CA</religion_cd>
            <zip_cd>12345-1234</zip_cd>
            <statecityzip_path>Zip codes\Massachusetts\Boston\02120\</statecityzip_path>
            <patient_blob/>
            <update_date>1999-02-28T13:59:00</update_date>
            <download_date>1999-02-28T13:59:00</download_date>
            <import_date>1999-02-28T13:59:00</import_date>
            <sourcesystem_cd>token</sourcesystem_cd>
            <upload_id>456</upload_id>
        </patient_dimension>

        <!-- Minimum Patient Data -->
        <patient_dimension>
            <patient_num>1234</patient_num>
        </patient_dimension>

    </patient_dimension_set>

    <observation_fact_set>

        <!-- Maximum Observation Data -->
        <observation_fact>
            <encounter_num>1234567</encounter_num>
            <patient_ide source="EMP">XRTU8GT9FKIS35DSVB</patient_ide>
            <concept_cd>CODING-SYSTEM:V450</concept_cd>
            <provider_id>12345</provider_id>
            <start_date>1999-02-28T13:59:00</start_date>
            <modifier_cd/>
            <valtype_cd>N</valtype_cd>
            <tval_char>Some Text Value</tval_char>
            <nval_num>1.0</nval_num>
            <valueflag_cd>float (or some code)</valueflag_cd>
            <quantity_num>1.0</quantity_num>
            <units_cd>ml</units_cd>
            <end_date>1999-02-28T13:59:00</end_date>
            <location_cd>MGH</location_cd>
            <confidence_num>95</confidence_num>
            <observation_blob/>
            <update_date>1999-02-28T13:59:00</update_date>
            <download_date>1999-02-28T13:59:00</download_date>
            <import_date>1999-02-28T13:59:00</import_date>
            <sourcesystem_cd>RPDRASTHMA</sourcesystem_cd>
            <upload_id>567</upload_id>
        </observation_fact>

        <!-- Minimum Observation Data -->
        <observation_fact>
            <encounter_id source="PULENCTMAP">123456</encounter_id>
            <patient_num>1234</patient_num>
            <concept_cd>CODING-SYSTEM:V450</concept_cd>
            <provider_id>12345</provider_id>
            <start_date>1999-02-28T13:59:00</start_date>
            <modifier_cd/>
            <observation_blob></observation_blob>
        </observation_fact>

    </observation_fact_set>
    
    <observation_fact_set concept_name="1" concept_path="1">
        <observation_fact>
            <encounter_num>1</encounter_num>
            <patient_num>1</patient_num>
            <concept_cd>1</concept_cd>
            <provider_id></provider_id>
            <start_date>1999-02-28T13:59:00</start_date>
            <modifier_cd></modifier_cd>
        </observation_fact>
    </observation_fact_set>

</pdo:patient_data>