On this R-data statistics page, you will find information about the uis data set which pertains to UIS Drug Treatment study data. The uis data set is found in the quantreg R package. You can load the uis data set in R by issuing the following command at the console data("uis"). This will load the data into a variable called uis. If R says the uis data set is not found, you can try installing the package by issuing this command install.packages("quantreg") and then attempt to reload the data. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the uis R data set. The size of this file is about 62,061 bytes.

UIS Drug Treatment study data

Description

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

Variable descriptions:

R project statistics dataset table

Variable	Description	Codes/Values
ID	Identification Code	1 - 628
AGE	Age at Enrollment	Years
BECK	Beck DepressionScore	0.000 - 54.000
HC	Heroin/Cocaine Use During	1 = Heroin & Cocaine
	3 Months Prior to Admission	2 = Heroin Only
		3 = Cocaine Only
		4 = Neither Heroin nor Cocaine
IV	History of IV Drug Use	1 = Never
		2 = Previous
		3 = Recent
NDT	Number of Prior Drug Treatments	0 - 40
RACE	Subject's Race	0 = White
		1 = Non-White
TREAT	Treatment Randomization	0 = Short
	Assignment	1 = Long
SITE	Treatment Site	0 = A
		1 = B
LEN.T	Length of Stay in Treatment	Days
	(Admission Date to Exit Date)
TIME	Time to Drug Relapse	Days
	(Measured from Admission Date)
CENSOR	Event for Treating Lost to	1 = Returned to Drugs
	Follow-Up as Returned to Drugs	or Lost to Follow-Up
		0 = Otherwise
Y	log of TIME
ND1	Component of NDT
ND2	Component of NDT
LNDT
FRAC	Compliance fraction	LEN.T/90 for short trt
		LEN.T/180 for long trt
IV3	Recent IV use	1 = Yes
		0 = No

Usage

data(uis)

Format

A data frame with dimension 575 by 18.

Source

Table 1.3 of Hosmer,D.W. and Lemeshow, S. (1998)

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

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Dataset imported from https://www.r-project.org.