NAME: 	Heart Disease Survival (WHAS1.DAT)
SIZE:	481 observations, 14 variables

SOURCE: 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


DESCRIPTIVE ABSTRACT:

This data set is described in Table 1.4 of the source text.


DISCLAIMER:  This data is also available at the publisher's FTP site: 
             ftp//ftp.wiley.com/public/sci_tech_med/survival


LIST OF VARIABLES:

Variable	Description			Codes / Units
______________________________________________________________________

ID		Identification Code 		1 - 481

AGE		Age (per chart)			years

SEX		Gender				0 = Male
						1 = Female

CPK		Peak Cardiac Enzyme		International Units (iu)

SHO 		Cardiogenic Shock		0 = No
		Complications 			1 = Yes

CHF		Left Heart Failure		0 = No
		Complications 			1 = Yes

MIORD 		MI Order			0 = First
						1 = Recurrent

MITYPE 		MI Type				1 = Q-wave
						2 = Not Q-wave
						3 = Indeterminate

YEAR		Cohort Year			1 = 1975
						2 = 1978
						3 = 1981
						4 = 1984
						5 = 1986
						6 = 1988

YRGRP		Grouped Cohort Year		1 = 1975 & 1978
						2 = 1981 & 1984
						3 = 1986 & 1988

LENSTAY		Length of Hospital Stay	Days
		Days in Hospital

DSTAT		Discharge Status		0 = Alive
		from Hospital			1 = Dead

LENFOL		Total Length of Follow-up	Days
		from Hospital Admission

FSTAT		Status as of Last		0 = Alive
		Follow-up			1 = Dead
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