blood Th1 cell count blood Th2 cell count blood CD4Th1 cell to CD4 Th2 cell ratio 2012-09-12T06:13:40Z A calculated measurement in which the number of CD4-positive T lymphocytes of the T helper 1 type in a specified sample of blood is divided by the number of CD4-positive T lymphocytes of the T helper 2 type in the same sample and the result presented as a ratio, fraction, quotient or percentage. CMO:0001105 CMO:0001106 JSmith TH1 cell to TH2 cell ratio TH1 cell to TH2 cell ratio as percentage blood Th1 cell to Th2 cell ratio as percentage clinical_measurement_ontology type 1 helper T cell to type 2 helper T cell ratio type 1 helper T cell to type 2 helper T cell ratio as percentage calculated blood CD4 cell count