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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">IJPDS</journal-id>
      <journal-title-group>
        <journal-title>International Journal of Population Data Science</journal-title>
        <abbrev-journal-title>IJPDS</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="epub">2399-4908</issn>
      <publisher>
        <publisher-name>Swansea University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.23889/ijpds.v10i3.3144</article-id>
      <article-id pub-id-type="publisher-id">10:3:119</article-id>
      <title-group>
        <article-title>Investigating the interplay of educational factors and mental health in
          children with orofacial clefts: A Record Linkage Study</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Rammos</surname>
            <given-names initials="A">Alexandros</given-names>
          </name>
          <xref ref-type="aff" rid="affil-1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Davies</surname>
            <given-names initials="A">Amy</given-names>
          </name>
          <xref ref-type="aff" rid="affil-1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Wren</surname>
            <given-names initials="Y">Yvonne</given-names>
          </name>
          <xref ref-type="aff" rid="affil-1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Humphries</surname>
            <given-names initials="K">Kerry</given-names>
          </name>
          <xref ref-type="aff" rid="affil-1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Lewis</surname>
            <given-names initials="S">Sarah J</given-names>
          </name>
          <xref ref-type="aff" rid="affil-1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Sharp</surname>
            <given-names initials="G">Gemma C</given-names>
          </name>
          <xref ref-type="aff" rid="affil-2">2</xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Owen</surname>
            <given-names initials="M">Michael J</given-names>
          </name>
          <xref ref-type="aff" rid="affil-3">3</xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Bree</surname>
            <given-names initials="M">Marianne B M Van den</given-names>
          </name>
          <xref ref-type="aff" rid="affil-3">3</xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Stergiakouli</surname>
            <given-names initials="E">Evie</given-names>
          </name>
          <xref ref-type="aff" rid="affil-1">1</xref>
        </contrib>
      </contrib-group>
      <aff id="affil-1"><label>1</label><institution>University of Bristol, Bristol, United Kingdom</institution></aff>
      <aff id="affil-2"><label>2</label><institution>University of Exeter, Exeter, United Kingdom</institution></aff>
      <aff id="affil-3"><label>3</label><institution>Cardiff University, Cardiff, United Kingdom</institution></aff>
      <pub-date date-type="pub" publication-format="electronic">
        <day>01</day>
        <month>06</month>
        <year>2025</year>
      </pub-date>
      <pub-date date-type="collection" publication-format="electronic">
        <year>2025</year>
      </pub-date>
      <volume>8</volume>
      <issue>4</issue>
      <elocation-id>3144</elocation-id>
      <permissions>
        <license license-type="open-access"
          xlink:href="https://creativecommons.org/licences/by/4.0/">
          <license-p>This work is licenced under a Creative Commons Attribution 4.0 International
            License.</license-p>
        </license>
      </permissions>
      <self-uri xlink:href="https://ijpds.org/article/view/3144">This article is available from the
        IJPDS website at: https://ijpds.org/article/view/3144</self-uri>
    </article-meta>
  </front>
  <body>
    <sec>
      <title>Objectives</title>
      <p>The purpose of this study is to examine the links between CL/P (Cleft Lip and/or Palate) in
        children, mental health, Special Education Needs (SEN)and educational outcomes. Furthermore,
        we aim to identify environmental causes of neurodevelopmental and mental health problems in
        children born with CL/P.</p>
    </sec>
    <sec>
      <title>Methods</title>
      <p>We will be linking Special Educational Needs, absence, and academic performance data from
        the National Pupil Database (NPD) with the Cleft Collective (CC) study, which includes
        11,315 participants from 4,039 families, collected in 16 NHS cleft centres across the UK.
        Using multivariable regression models adjusted for NPD-linked confounders, we will analyse
        associations between mental health/neurodevelopmental trajectories and school-level factors
        (school absences and exclusions, Key Stage test scores).</p>
    </sec>
    <sec>
      <title>Results</title>
      <p>We estimate that we will request matching on approximately 3427 children from the Cleft
        Collective to the NPD. We will link those with questionnaires collected at recruitment (at
        prenatal CL/P diagnosis, at birth, or at 5 years) and at follow-ups at ages 18 months, 3, 5,
        8, 10, 12 and 15 years. In addition to key outcomes (which include Key Stage 1 and 2
        results) we also aim to explore secondary outcomes that might be relevant to the CC cohort
        (including absence and exclusion patterns).</p>
    </sec>
    <sec>
      <title>Conclusion</title>
      <p>Through this linkage we aim to foster a deeper understanding of the specific needs of
        children born with CL/P, to improve the validity and relevance of these findings, to
        ascertain causal pathways between cleft and mental health and how this relates to
        educational provision for this group.</p>
    </sec>
  </body>
</article>