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Inferring causal relationships among intermediate phenotypes and biomarkers: a case study of rheumatoid arthritis
Author(s) -
Wentian Li,
Mingyi Wang,
Patricia Irigoyen,
Peter K. Gregersen
Publication year - 2006
Publication title -
bioinformatics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.599
H-Index - 390
eISSN - 1367-4811
pISSN - 1367-4803
DOI - 10.1093/bioinformatics/btl100
Subject(s) - causal inference , confounding , inference , rheumatoid arthritis , phenotype , causal model , computational biology , rheumatoid factor , genetic association , genotype , bioinformatics , medicine , genetics , biology , econometrics , gene , computer science , statistics , immunology , mathematics , artificial intelligence , single nucleotide polymorphism
Genetic association analysis is based on statistical correlations which do not assign any cause-to-effect arrows between the two correlated variables. Normally, such assignment of cause and effect label is not necessary in genetic analysis since genes are always the cause and phenotypes are always the effect. However, among intermediate phenotypes and biomarkers, assigning cause and effect becomes meaningful, and causal inference can be useful.

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