Data frame:stressEcho

558 observations and 31 variables, maximum # NAs:0
NameLabelsUnitsLevelsStorage
bhrBasal heart ratebpm
integer
basebpBasal blood pressuremmHg
integer
basedpBasal Double Product bhr*basebpbpm*mmHg
integer
pkhrPeak heart ratemmHg
integer
sbpSystolic blood pressuremmHg
integer
dpDouble product pkhr*sbpbpm*mmHg
integer
doseDose of dobutamine givenmg
integer
maxhrMaximum heart ratebpm
integer
pctMphrPercent maximum predicted heart rate achieved%
integer
mbpMaximum blood pressuremmHg
integer
dpmaxdoDouble product on max dobutamine dosebpm*mmHg
integer
dobdoseDobutamine dose at max double productmg
integer
ageAgeyears
integer
gender
2
integer
baseEFBaseline cardiac ejection fraction%
integer
dobEFEjection fraction on dobutamine%
integer
chestpainChest pain
integer
restwmaResting wall motion abnormality on echocardiogram
integer
posSEPositive stress echocardiogram
integer
newMINew myocardial infarction
integer
newPTCARecent angioplasty
integer
newCABGRecent bypass surgery
integer
death
integer
hxofHTHistory of hypertension
integer
hxofDMHistory of diabetes
integer
hxofCigHistory of smoking
3
integer
hxofMIHistory of myocardial infarction
integer
hxofPTCAHistory of angioplasty
integer
hxofCABGHistory of coronary artery bypass surgery
integer
any.eventDeath, newMI, newPTCA, or newCABG
integer
ecgBaseline electrocardiogram diagnosis
3
integer
VariableLevels
gendermale
female
hxofCigheavy
moderate
non-smoker
ecgnormal
equivocal
MI