Data frame:pbc

418 observations and 19 variables, maximum # NAs:136
NameLabelsLevelsStorageNAs
biliSerum Bilirubin (mg/dl)
double
0
albuminAlbumin (gm/dl)
double
0
stageHistologic Stage, Ludwig Criteria
double
6
protimeProthrombin Time (sec.)
double
2
sex
2
integer
0
fu.daysTime to Death or Liver Transplantation
double
0
ageAge
double
0
spiders
2
integer
106
hepatom
2
integer
106
ascites
2
integer
106
alk.phosAlkaline Phosphatase (U/liter)
double
106
sgotSGOT (U/ml)
double
106
cholCholesterol (mg/dl)
double
134
trigTriglycerides (mg/dl)
double
136
plateletPlatelets (per cm^3/1000)
double
110
drug
3
integer
0
statusFollow-up Status
double
0
edema
3
integer
0
copperUrine Copper (ug/day)
double
108

VariableLevels
sexmale
female
spidersabsent
present
hepatomabsent
present
ascitesabsent
present
drugD-penicillamine
placebo
not randomized
edemano edema
edema, no diuretic therapy
edema despite diuretic therapy