@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .

<https://concepts.sagepub.com/social-science/concept/epidemiologic_studies>
  skos:prefLabel "epidemiologic studies"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/cohort_studies> .

<https://concepts.sagepub.com/social-science/concept/retrospective_studies>
  skos:prefLabel "retrospective studies"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/cohort_studies> .

<https://concepts.sagepub.com/social-science/concept/attrition>
  skos:prefLabel "attrition"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/cohort_studies> .

<https://concepts.sagepub.com/social-science/concept/cohort_studies>
  skos:narrower <https://concepts.sagepub.com/social-science/concept/follow-up_studies>, <https://concepts.sagepub.com/social-science/concept/longitudinal_studies>, <https://concepts.sagepub.com/social-science/concept/cohort-sequential_design>, <https://concepts.sagepub.com/social-science/concept/retrospective_studies>, <https://concepts.sagepub.com/social-science/concept/prospective_studies>, <https://concepts.sagepub.com/social-science/concept/attrition> ;
  skos:exactMatch <https://id.nlm.nih.gov/mesh/D015331.html> ;
  skos:prefLabel "cohort studies"@en ;
  skos:definition "Cohort studies represent a type of epidemiological approach to investigating the incidence and prevalence of disease across a fixed population group over time. Using this type of approach, researchers compare outcomes between a cohort, or group, of individuals who have a risk factor (e.g., smoking) believed to be associated with a disease (e.g., lung cancer) and a group without the factor (e.g., non-smokers). [Source: <a href=\"https://sk.sagepub.com/reference/healthservices/n73.xml\" target=\"_blank\" data-id=\"to-sk\">Encyclopedia of Health Services Research; Cohort Studies</a>]"@en ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/epidemiologic_studies> ;
  a skos:Concept .

<https://concepts.sagepub.com/social-science/concept/prospective_studies>
  skos:prefLabel "prospective studies"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/cohort_studies> .

<https://concepts.sagepub.com/social-science/concept/longitudinal_studies>
  skos:prefLabel "longitudinal studies"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/cohort_studies> .

<https://concepts.sagepub.com/social-science/concept/follow-up_studies>
  skos:prefLabel "follow-up studies"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/cohort_studies> .

<https://concepts.sagepub.com/social-science/concept/cohort-sequential_design>
  skos:prefLabel "cohort-sequential design"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/cohort_studies> .

<https://concepts.sagepub.com/social-science/concept/conceptgroup/methods>
  a skos:Collection, isothes:ConceptGroup ;
  skos:prefLabel "methods"@en ;
  skos:member <https://concepts.sagepub.com/social-science/concept/cohort_studies> .