NAME:  	SHOCK DATA (SHOCK.DAT)
KEYWORDS:  Multiple Regression
SIZE:  	113 Observations, 21 Total Variables

SOURCE: These data appear and are utilized in "Statistical Analysis:  A
	Computer Oriented Approach" by A.A. Afifi and S.P. Azen.


DESCRIPTIVE ABSTRACT:

These data were collected at the Shock Research Unit at the 
University of Southern California, Los Angeles, California.  Data on 
many physiological variables were collected successively in time on 
each patient.  These data represent a special subset of the data that 
was extracted for the purpose of exercise.  Initial measurements 
(measurements upon admission) and final measurements on the same variables
(measurements just before death or discharge) were collected on 113
critically ill patients. 


LIST OF VARIABLES:

Please note that there are 2 records for each patient.
Each record contains 21 fields.  Record 1 contains 6 general variables
(Id - Shock type) and 14 initial measurements on 14 variables (Systolic
pressure - Hematocrit).  Record 2 contains the same 6 general variables 
and 14 final measurements on the 14 variables.  Each record also has a
record number indicator.

NOTE: Some values have implied decimals.  See FORMAT for scaling.

Column	Variable	Description		Units		Comment
--------------------------------------------------------------------------
1-4	ID		ID			none
5-8	AGE		Age 			yr
9-12	HT		Height			cm	
15	Sex					none		1=Male, 2=Female
16 	SURVIVE		Survival		none		1=Survived, 3=Died
20	SHOCK_TYP	Shock type		none		2=Non-shock
								3=Hypovolemic shock
								4=Cardiogenic shock
								5=Bacterial shock
								6=Neurogenic shock
								7=Other
21-24 	SBP		Systolic Pressure	mm Hg
25-28	MAP		Mean arterial pressure  mm Hg
29-32 	HR		Heart rate		beats/min
33-36	DBP		Diastolic pressure	mm Hg
37-40	MCVP		Mean central venous   	cm H2O
			pressure
41-44	BSI		Body surface index	m2
45-48	CI		Cardiac index		liters/min m2
49-52	AT		Appearance time		sec
53-56	MCT		Mean circulation time	sec
57-60	UO		Urinary output		ml/hr
61-64	PVI		Plasma volume index	ml/kg	
65-68	RCI		Red Cell Index		ml/kg
69-72	HG		Hemoglobin		gm/100 ml
73-76	HCT		Hematocrit		percent
80	RECORD		Card sequence 		none		1=Initial, 2=Final

-----------------------------------------------------------------------------

FORMAT:  (3F4.0,F3.0,F1.0,5F4.0,F4.1,2F4.2,2F4.1,F4.0,4F4.1/20X,
         4F4.0,F4.1,2F4.2,2F4.1,F4.0,4F4.1).


PEDAGOGICAL NOTES:  These data have been used to fit a multiple regression
model.


STORY BEHIND THE DATA:


REFERENCES:
1.  Statistical Analysis:  A Computer Oriented Approach, 2nd ed. (1979).
Academic Press, New York.