Gestational Age at Delivery and Special Educational Need: Retrospective Cohort Study of 407,503 Schoolchildren
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{"title"=>"Gestational age at delivery and special educational need: Retrospective cohort study of 407,503 schoolchildren", "type"=>"journal", "authors"=>[{"first_name"=>"Daniel F.", "last_name"=>"Mackay", "scopus_author_id"=>"12760252100"}, {"first_name"=>"Gordon C S", "last_name"=>"Smith", "scopus_author_id"=>"7406742171"}, {"first_name"=>"Richard", "last_name"=>"Dobbie", "scopus_author_id"=>"6604047204"}, {"first_name"=>"Jill P.", "last_name"=>"Pell", "scopus_author_id"=>"7102902457"}], "year"=>2010, "source"=>"PLoS Medicine", "identifiers"=>{"isbn"=>"1549-1277", "sgr"=>"77955019494", "pui"=>"359258156", "doi"=>"10.1371/journal.pmed.1000289", "pmid"=>"20543995", "issn"=>"15491277", "scopus"=>"2-s2.0-77955019494"}, "id"=>"65aab2c1-0969-3afb-be57-af71cd60a3fc", "abstract"=>"BACKGROUND: Previous studies have demonstrated an association between preterm delivery and increased risk of special educational need (SEN). The aim of our study was to examine the risk of SEN across the full range of gestation. METHODS AND FINDINGS: We conducted a population-based, retrospective study by linking school census data on the 407,503 eligible school-aged children resident in 19 Scottish Local Authority areas (total population 3.8 million) to their routine birth data. SEN was recorded in 17,784 (4.9%) children; 1,565 (8.4%) of those born preterm and 16,219 (4.7%) of those born at term. The risk of SEN increased across the whole range of gestation from 40 to 24 wk: 37-39 wk adjusted odds ratio (OR) 1.16, 95% confidence interval (CI) 1.12-1.20; 33-36 wk adjusted OR 1.53, 95% CI 1.43-1.63; 28-32 wk adjusted OR 2.66, 95% CI 2.38-2.97; 24-27 wk adjusted OR 6.92, 95% CI 5.58-8.58. There was no interaction between elective versus spontaneous delivery. Overall, gestation at delivery accounted for 10% of the adjusted population attributable fraction of SEN. Because of their high frequency, early term deliveries (37-39 wk) accounted for 5.5% of cases of SEN compared with preterm deliveries (<37 wk), which accounted for only 3.6% of cases. CONCLUSIONS: Gestation at delivery had a strong, dose-dependent relationship with SEN that was apparent across the whole range of gestation. Because early term delivery is more common than preterm delivery, the former accounts for a higher percentage of SEN cases. Our findings have important implications for clinical practice in relation to the timing of elective delivery.", "link"=>"http://www.mendeley.com/research/gestational-age-delivery-special-educational-need-retrospective-cohort-study-407503-schoolchildren", "reader_count"=>83, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Professor > Associate Professor"=>2, "Librarian"=>1, "Researcher"=>11, "Student > Doctoral Student"=>8, "Student > Ph. D. Student"=>15, "Student > Postgraduate"=>5, "Other"=>10, "Student > Master"=>9, "Student > Bachelor"=>9, "Lecturer"=>4, "Lecturer > Senior Lecturer"=>2, "Professor"=>6}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Professor > Associate Professor"=>2, "Librarian"=>1, "Researcher"=>11, "Student > Doctoral Student"=>8, "Student > Ph. D. Student"=>15, "Student > Postgraduate"=>5, "Other"=>10, "Student > Master"=>9, "Student > Bachelor"=>9, "Lecturer"=>4, "Lecturer > Senior Lecturer"=>2, "Professor"=>6}, "reader_count_by_subject_area"=>{"Unspecified"=>5, "Nursing and Health Professions"=>7, "Mathematics"=>1, "Medicine and Dentistry"=>40, "Agricultural and Biological Sciences"=>4, "Neuroscience"=>9, "Arts and Humanities"=>1, "Veterinary Science and Veterinary Medicine"=>1, "Psychology"=>12, "Social Sciences"=>1, "Computer Science"=>1, "Biochemistry, Genetics and Molecular Biology"=>1}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>40}, "Neuroscience"=>{"Neuroscience"=>9}, "Social Sciences"=>{"Social Sciences"=>1}, "Psychology"=>{"Psychology"=>12}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>4}, "Computer Science"=>{"Computer Science"=>1}, "Nursing and Health Professions"=>{"Nursing and Health Professions"=>7}, "Mathematics"=>{"Mathematics"=>1}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}, "Unspecified"=>{"Unspecified"=>5}, "Arts and Humanities"=>{"Arts and Humanities"=>1}, "Veterinary Science and Veterinary Medicine"=>{"Veterinary Science and Veterinary Medicine"=>1}}, "reader_count_by_country"=>{"Japan"=>1, "Brazil"=>1, "Poland"=>1, "United Kingdom"=>1, "Chile"=>1, "Portugal"=>1}, "group_count"=>2}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/845659"], "description"=>"a<p>Adjusted for infant sex, maternal age and height, marital status, parity, birth-weight centile, induction of labour, mode of delivery, year of delivery, previous spontaneous and therapeutic deliveries, and 5-min Apgar score.</p>", "links"=>[], "tags"=>["attributable", "fractions", "needs", "gestational"], "article_id"=>516115, "categories"=>["Medicine", "Biotechnology"], "users"=>["Daniel F. MacKay", "Gordon C. S. Smith", "Richard Dobbie", "Jill P. Pell"], "doi"=>"https://dx.doi.org/10.1371/journal.pmed.1000289.t003", "stats"=>{"downloads"=>1, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Population_attributable_fractions_for_special_educational_needs_due_to_gestational_age_at_delivery_wk_/516115", "title"=>"Population attributable fractions for special educational needs due to gestational age at delivery (wk).", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2010-06-08 01:41:55"}
  • {"files"=>["https://ndownloader.figshare.com/files/420991"], "description"=>"<div><h3>Background</h3><p>Previous studies have demonstrated an association between preterm delivery and increased risk of special educational need (SEN). The aim of our study was to examine the risk of SEN across the full range of gestation.</p><h3>Methods and Findings</h3><p>We conducted a population-based, retrospective study by linking school census data on the 407,503 eligible school-aged children resident in 19 Scottish Local Authority areas (total population 3.8 million) to their routine birth data. SEN was recorded in 17,784 (4.9%) children; 1,565 (8.4%) of those born preterm and 16,219 (4.7%) of those born at term. The risk of SEN increased across the whole range of gestation from 40 to 24 wk: 37–39 wk adjusted odds ratio (OR) 1.16, 95% confidence interval (CI) 1.12–1.20; 33–36 wk adjusted OR 1.53, 95% CI 1.43–1.63; 28–32 wk adjusted OR 2.66, 95% CI 2.38–2.97; 24–27 wk adjusted OR 6.92, 95% CI 5.58–8.58. There was no interaction between elective versus spontaneous delivery. Overall, gestation at delivery accounted for 10% of the adjusted population attributable fraction of SEN. Because of their high frequency, early term deliveries (37–39 wk) accounted for 5.5% of cases of SEN compared with preterm deliveries (<37 wk), which accounted for only 3.6% of cases.</p><h3>Conclusions</h3><p>Gestation at delivery had a strong, dose-dependent relationship with SEN that was apparent across the whole range of gestation. Because early term delivery is more common than preterm delivery, the former accounts for a higher percentage of SEN cases. Our findings have important implications for clinical practice in relation to the timing of elective delivery.</p><h3></h3><p><em>Please see later in the article for the Editors' Summary</em></p></div>", "links"=>[], "tags"=>["gestational", "retrospective", "cohort", "schoolchildren"], "article_id"=>143137, "categories"=>["Medicine", "Biotechnology"], "users"=>["Daniel F. MacKay", "Gordon C. S. Smith", "Richard Dobbie", "Jill P. Pell"], "doi"=>"https://dx.doi.org/10.1371/journal.pmed.1000289", "stats"=>{"downloads"=>2, "page_views"=>11, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Gestational_Age_at_Delivery_and_Special_Educational_Need_Retrospective_Cohort_Study_of_407_503_Schoolchildren/143137", "title"=>"Gestational Age at Delivery and Special Educational Need: Retrospective Cohort Study of 407,503 Schoolchildren", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2010-06-08 00:52:17"}
  • {"files"=>["https://ndownloader.figshare.com/files/845449"], "description"=>"<p>Prevalence of special educational need by gestation at delivery.</p>", "links"=>[], "tags"=>["gestation"], "article_id"=>515907, "categories"=>["Medicine", "Biotechnology"], "users"=>["Daniel F. MacKay", "Gordon C. S. Smith", "Richard Dobbie", "Jill P. Pell"], "doi"=>"https://dx.doi.org/10.1371/journal.pmed.1000289.g001", "stats"=>{"downloads"=>1, "page_views"=>4, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Prevalence_of_special_educational_need_by_gestation_at_delivery_/515907", "title"=>"Prevalence of special educational need by gestation at delivery.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2010-06-08 01:38:27"}
  • {"files"=>["https://ndownloader.figshare.com/files/845589"], "description"=>"a<p>Kruskal-Wallis test for continuous data; Cuzick's nonparametric test for trend for ordinal data; χ<sup>2</sup> test for categorical data.</p>", "links"=>[], "tags"=>["characteristics", "schoolchildren"], "article_id"=>516052, "categories"=>["Medicine", "Biotechnology"], "users"=>["Daniel F. MacKay", "Gordon C. S. Smith", "Richard Dobbie", "Jill P. Pell"], "doi"=>"https://dx.doi.org/10.1371/journal.pmed.1000289.t001", "stats"=>{"downloads"=>1, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Pregnancy_characteristics_of_schoolchildren_according_to_whether_they_have_special_educational_needs_/516052", "title"=>"Pregnancy characteristics of schoolchildren according to whether they have special educational needs.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2010-06-08 01:40:52"}
  • {"files"=>["https://ndownloader.figshare.com/files/845627"], "description"=>"a<p>Also adjusted for year of delivery.</p>", "links"=>[], "tags"=>["multivariable", "logistic", "regression", "characteristics", "needs"], "article_id"=>516083, "categories"=>["Medicine", "Biotechnology"], "users"=>["Daniel F. MacKay", "Gordon C. S. Smith", "Richard Dobbie", "Jill P. Pell"], "doi"=>"https://dx.doi.org/10.1371/journal.pmed.1000289.t002", "stats"=>{"downloads"=>1, "page_views"=>4, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Univariate_and_multivariable_logistic_regression_analysis_of_the_association_between_pregnancy_characteristics_and_risk_of_special_educational_needs_in_schoolchildren_/516083", "title"=>"Univariate and multivariable logistic regression analysis of the association between pregnancy characteristics and risk of special educational needs in schoolchildren.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2010-06-08 01:41:23"}

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Relative Metric

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