{"variable":"age","label":"age","labelLong":"in years","subject":"demographic","section":"age","variableType":"cont","databaseStart":"pbc","units":"years","variableStart":"[age]"}
{"variable":"albumin","label":"albumin","labelLong":"serum albumin","subject":"lab test","section":"albumin","variableType":"cont","databaseStart":"pbc","units":"g/dl","variableStart":"[albumin]"}
{"variable":"alk.phos","label":"alk.phos","labelLong":"alkaline phosphotase","subject":"lab test","section":"alk.phos","variableType":"cont","databaseStart":"pbc","units":"U/L","variableStart":"[alk.phos]"}
{"variable":"ascites","label":"ascites","labelLong":"prescence of ascites","subject":"physical symptom","section":"ascites","variableType":"cat","databaseStart":"pbc","units":"N/A","variableStart":"[ascites]"}
{"variable":"ast","label":"ast","labelLong":"aspartate aminotransferase, once called SGOT","subject":"lab test","section":"ast","variableType":"cont","databaseStart":"pbc","units":"U/L","variableStart":"[ast]"}
{"variable":"bili","label":"bili","labelLong":"serum bilirunbin","subject":"lab test","section":"bili","variableType":"cont","databaseStart":"pbc","units":"mg/dl","variableStart":"[bili]"}
{"variable":"chol","label":"chol","labelLong":"serum cholesterol","subject":"lab test","section":"chol","variableType":"cont","databaseStart":"pbc","units":"mg/dl","variableStart":"[chol]"}
{"variable":"copper","label":"copper","labelLong":"urine copper","subject":"lab test","section":"copper","variableType":"cont","databaseStart":"pbc","units":"ug/dl","variableStart":"[copper]"}
{"variable":"edema","label":"edema","labelLong":"edema","subject":"physical symptom","section":"edema","variableType":"cat","databaseStart":"pbc","units":"N/A","variableStart":"[edema]"}
{"variable":"hepato","label":"hepato","labelLong":"prescence of hepatomegaly or enlarged liver","subject":"physical symptom","section":"hepato","variableType":"cat","databaseStart":"pbc","units":"N/A","variableStart":"[hepato]"}
{"variable":"platelet","label":"platelet","labelLong":"platelet count","subject":"lab test","section":"platelet","variableType":"cont","databaseStart":"pbc","units":"N/A","variableStart":"[platelet]"}
{"variable":"protime","label":"protime","labelLong":"standarized blood clotting time","subject":"lab test","section":"protime","variableType":"cont","databaseStart":"pbc","units":"N/A","variableStart":"[protime]"}
{"variable":"sex","label":"sex","labelLong":"sex","subject":"demographic","section":"sex","variableType":"cat","databaseStart":"pbc","units":"N/A","variableStart":"[sex]"}
{"variable":"spiders","label":"spiders","labelLong":"blood vessel malformations in the skin","subject":"physical symptom","section":"spiders","variableType":"cat","databaseStart":"pbc","units":"N/A","variableStart":"[spiders]"}
{"variable":"stage","label":"stage","labelLong":"histologic stage of disease (needs biopsy)","subject":"lab test","section":"stage","variableType":"cat","databaseStart":"pbc","units":"N/A","variableStart":"[stage]"}
{"variable":"status","label":"status","labelLong":"status at endpoint","subject":"study","section":"status","variableType":"cat","databaseStart":"pbc","units":"N/A","variableStart":"[status]"}
{"variable":"time","label":"time","labelLong":"number of days between registration and the earlier of death,\ntransplantion, or study analysis in July, 1986","subject":"study","section":"time","variableType":"cont","databaseStart":"pbc","units":"days","variableStart":"[time]"}
{"variable":"trig","label":"trig","labelLong":"triglycerides","subject":"lab test","section":"trig","variableType":"cont","databaseStart":"pbc","units":"mg/dl","variableStart":"[trig]"}
{"variable":"trt","label":"treatment","labelLong":"treatment","subject":"exposure","section":"trt","variableType":"cat","databaseStart":"pbc","units":"N/A","variableStart":"[trt]"}
{"variable":"id","label":"case number","labelLong":"case number","subject":"study identifiction","section":"ID","variableType":"cont","databaseStart":"pbc","units":"N/A","variableStart":"[id]"}