R: UIS Drug Treatment study data

uis {quantreg} | R Documentation

## UIS Drug Treatment study data

### Description

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

Variable descriptions:

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

[Package quantreg version 5.93 Index]