Description of Variables in the UMARU IMPACT Study 
Described in Section 1.6.4 page 26

       These data come from  Hosmer and Lemeshow (2000) Applied Logistic
 Regression: Second Edition.  These data are copyrighted by John Wiley &
 Sons Inc. and must be acknowledged and used accordingly.


Variable	Description			Codes/Values		Name
1		Identification Code		1-575			ID
2		Age at Enrollment		Years			AGE			
3		Beck Depression Score at 	0.000-54.000		BECK
		Admission
4		IV Drug Use History 		1 = Never, 		IVHX
		at Admission 			2 = Previous 3 = Recent 
5		Number of Prior Drug 		0-40			NDRUGTX
		Treatments 
6		Subject's Race			0 = White, 1 = Other	RACE
7		Treatment Randomization 	0 = Short, 1 = Long	TREAT
		Assignment 
8		Treatment Site			0 = A, 1 = B		SITE
9		Remained Drug Free 		1 = Remained Drug Free	DFREE
		for 12 Months 			0 = Otherwise