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        <datestamp>2020-11-19T09:22:45Z</datestamp>
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              <creatorName>Lewer, Dan</creatorName>
              <givenName>Dan</givenName>
              <familyName>Lewer</familyName>
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            <creator>
              <creatorName>Padmanathan, Prianka</creatorName>
              <givenName>Prianka</givenName>
              <familyName>Padmanathan</familyName>
              <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org">0000-0003-1292-6575</nameIdentifier>
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            <creator>
              <creatorName>Muhammad Najam Ul Arfeen, Dr</creatorName>
              <givenName>Dr</givenName>
              <familyName>Muhammad Najam Ul Arfeen</familyName>
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            <creator>
              <creatorName>Denaxas, Spiros</creatorName>
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            <creator>
              <creatorName>Forbes, Harriet</creatorName>
              <givenName>Harriet</givenName>
              <familyName>Forbes</familyName>
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              <creatorName>Gonzalez-Izquierdo, Arturo</creatorName>
              <givenName>Arturo</givenName>
              <familyName>Gonzalez-Izquierdo</familyName>
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            <creator>
              <creatorName>Hickman, Matt</creatorName>
              <givenName>Matt</givenName>
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          <titles>
            <title><![CDATA[Healthcare use by people who use illicit opioids (HUPIO): development of a cohort based on electronic primary care records in England (extended data)]]></title>
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          <subjects>
            <subject>Epidemiology not elsewhere classified</subject>
            <subject>Health informatics and information systems</subject>
            <subject>Primary health care</subject>
            <subject>Public health not elsewhere classified</subject>
            <subject>illicit drugs</subject>
            <subject>substance use disorders</subject>
            <subject>electronic health records</subject>
            <subject>data linkage</subject>
            <subject>opioids</subject>
            <subject>health inequalities</subject>
            <subject>Epidemiology</subject>
            <subject>Health Informatics</subject>
            <subject>Primary Health Care</subject>
            <subject>Public Health and Health Services not elsewhere classified</subject>
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          <dates>
            <date dateType="Created">2021-04-27</date>
            <date dateType="Updated">2021-04-27</date>
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          <resourceType resourceTypeGeneral="Dataset">Dataset</resourceType>
          <publicationYear>2020</publicationYear>
          <publisher>University College London</publisher>
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            <description descriptionType="Abstract"><![CDATA[<div>This dataset includes:<br></div><div><br></div><div>1. Search terms used to identify codes that may represent a history of illicit opioid use </div><div>2. Codelist for identifying people with a history of illicit opioid use </div><div>3. Age- and sex-distribution of patients by product and clinical codes </div><div>4. Number of patients currently in the cohort<br></div><div>5. Age of patients at cohort entry<br></div><div>6. Internal validation based on hospital admissions for opioid dependence</div>]]></description>
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