NAME: 	Heart Disease Survival [Nested Case-Control] (WHASNCC1.DAT)
SIZE:	1494 observation, 12 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:

These data are used in exercises in Chapter 9 of the source text. Note that
five controls per case were selected. 


DISCLAIMER:  This data has been downloaded from the following Wiley's FTP 
	     site:   ftp://ftp.wiley.com/public/sci_tech_med/survival


LIST OF VARIABLES:

Variable	Description				Codes / Units
___________________________________________________________________________________

SET		Case-Control Set	 		1 - 249

CASE		Case-Control Status			0 = Control
							1 = Case

T		Ties Broken LENFOL			T = LENFOL if FSTAL = 0
							T = LENFOL - U(0,1) if FSTAL = 1

LENFOL		Total Length of Follow-up		Days
		from Hospital Admission

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

AGE		Age (per chart)				years

SEX		Gender					0 = Male
							1 = Female

CHF		Left Heart Failure			0 = No
		Complications 				1 = Yes

MIORD 		MI Order				0 = First
							1 = Recurrent

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

LENSTAY		Length of Hospital Stay			Days
		Days in Hospital

NR		Number in the Risk Set in
		the original WHAS Cohort
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