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quantreg (version 5.98)

uis: UIS Drug Treatment study data

Description

There are 628 data points in the original data, 575 of which have no missing values.

Variable descriptions:

VariableDescriptionCodes/Values
IDIdentification Code1 - 628
AGEAge at EnrollmentYears
BECKBeck DepressionScore0.000 - 54.000
HCHeroin/Cocaine Use During1 = Heroin & Cocaine
3 Months Prior to Admission2 = Heroin Only
3 = Cocaine Only
4 = Neither Heroin nor Cocaine
IVHistory of IV Drug Use1 = Never
2 = Previous
3 = Recent
NDTNumber of Prior Drug Treatments0 - 40
RACESubject's Race0 = White
1 = Non-White
TREATTreatment Randomization0 = Short
Assignment1 = Long
SITETreatment Site0 = A
1 = B
LEN.TLength of Stay in TreatmentDays
(Admission Date to Exit Date)
TIMETime to Drug RelapseDays
(Measured from Admission Date)
CENSOREvent for Treating Lost to1 = Returned to Drugs
Follow-Up as Returned to Drugsor Lost to Follow-Up
0 = Otherwise
Ylog of TIME
ND1Component of NDT
ND2Component of NDT
LNDT
FRACCompliance fractionLEN.T/90 for short trt
LEN.T/180 for long trt
IV3Recent IV use1 = Yes
0 = No

Usage

data(uis)

Arguments

Format

A data frame with dimension 575 by 18.

References

Hosmer,D.W. and Lemeshow, S. (1998) Applied Survival Analysis: Regression Modeling of Time to Event Data, John Wiley and Sons Inc., New York, NY