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family_relations [2025/09/02 09:51] sylviafamily_relations [2025/09/02 10:45] (current) simone
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 Note that the family relations file does not provide information on whether a family member lives in the same house. Information on [[default_variables|postal code 4]] is available in your data by default and data on [[household_composition|household composition]] can be requested through our [[https://data-catalogue.lifelines.nl/|catalogue]]. Note that the family relations file does not provide information on whether a family member lives in the same house. Information on [[default_variables|postal code 4]] is available in your data by default and data on [[household_composition|household composition]] can be requested through our [[https://data-catalogue.lifelines.nl/|catalogue]].
  
-The family relations file is not available through our catelogue, but can be requested by sending an e-mail to data@lifelines.nl (this does not apply to UGLI consortium cluster users, who can already find the file in pheno_lifelines). If you do not already have access to the family relation file, please also complete our [[https://www.lifelines.nl/researcher/how-to-apply|amendment form]]. +The family relations file is not available through our catalogue, but can be requested by sending an e-mail to data@lifelines.nl (this does not apply to UGLI consortium cluster users, who can already find the file in pheno_lifelines). If you do not already have access to the family relation file, please also complete our [[https://www.lifelines.nl/researcher/how-to-apply|amendment form]]. 
  
-===== Data and structure =====+===== Data and Structure =====
  
 The data in sec_family_relations_v3.1 consists of 5 columns: The data in sec_family_relations_v3.1 consists of 5 columns:
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 The family id is used to identify participants that are part of the same family. Couples who share a household, but don't have children, also receive a family id. This provides the opportunity to work on research involving environmental factors. Note that partner information is based on [[1A|baseline data]]. The family id is used to identify participants that are part of the same family. Couples who share a household, but don't have children, also receive a family id. This provides the opportunity to work on research involving environmental factors. Note that partner information is based on [[1A|baseline data]].
  
 +===== Family Duos and Trios =====
 From the family relations file the following numbers have been extracted: From the family relations file the following numbers have been extracted:
  
-{{:family_relations.png?800|}}+{{:family_relations.png?600|}}
  
 ===== Twins and Triplets ===== ===== Twins and Triplets =====
 Based on birth and family records, the following numbers were identified within Lifelines: Based on birth and family records, the following numbers were identified within Lifelines:
   * Twins: 632 pairs (1,264 unique individuals)   * Twins: 632 pairs (1,264 unique individuals)
-Monozygotic (MZ): 152 pairs +      * Monozygotic (MZ): 152 pairs 
- Dizygotic (DZ): 350 pairs +      Dizygotic (DZ): 350 pairs 
- Zygosity undetermined: 130 pairs+      Zygosity undetermined: 130 pairs
   * Triplets: 6 sets (18 unique individuals). As far as could be ascertained, none of these sets included  monozygotic pairs or trios.   * Triplets: 6 sets (18 unique individuals). As far as could be ascertained, none of these sets included  monozygotic pairs or trios.
  
family_relations.1756806669.txt.gz · Last modified: by sylvia