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Powerpoint from Logistic Regression Workshop

Handout From Workshop

Code for Logistic Regression Workshop

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***** LOGISTIC REGRESSION *****
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 * To run code you hilight the code you wish to run and hit Control+d
 
 * NOTE: This do file should not be distributed without the written 
 * permission of Raeda Anderson, Ph.D 
 
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****** DATA SET UP ******
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* pull in data
use http://www.stata-press.com/data/r15/lbw.dta
 
* look at study variables
codebook low smoke age race ht ui ftv
 
* generate black variable 
gen black = . 
replace black =1 if race == 2
replace black =0 if race == 1
replace black =0 if race == 3
 
*generate white variable 
gen white = . 
replace white =1 if race == 1
replace white =0 if race == 2
replace white =0 if race == 3
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***** LOGISTIC REGRESSION *****
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***** Predicting Low Birth Weight *****
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*** ODDS RATIOS ***
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* Model 1 
logistic low smoke  
 
* Model 2
logistic low smoke ht 
* Model 3
logistic low smoke ht black  
* Model 4
logistic low smoke ht black white 
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*** CORRELATION COEFFICIENTS ***
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* Model 1 
logistic low smoke, coef
 
* Model 2
logistic low smoke age, coef 
* Model 3
logistic low smoke age black, coef  
* Model 4
logistic low smoke age black white, coef 
 
***** Predicting Smoking During Pregnancy *****
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*** ODDS RATIOS ***
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* Model 1 
logistic smoke ht   
 
* Model 2
logistic smoke ht age
* Model 3
logistic smoke ht age ptl

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