********************************************************************
* File			    HALCyon body size syntax_ELSA.do
* BY				Rebecca Hardy, MRC Unit for Lifelong Health and Ageing at UCL
* FOR				HALCyon cross-cohort collaboration (funded by the New Dynamics of Ageing (RES-353-25-0001))
* DATASET			English Longitudinal Study of Ageing
* Date Created 		12/05/2010
* last modified	    19/07/2010

* PURPOSE			Recodes and derives body size variables for use in cross-cohort analyses
*************************************************************************************

# delimit;
set more off;

/*body size at wave 0*/
gen bmi_w0=bmivalw0 ;
mvdecode bmi_w0, mv(-1) ;
gen ht_w0=htvalw0 ;
mvdecode ht_w0, mv(-1) ;
gen wt_w0=wtvalw0 ;
mvdecode wt_w0, mv(-1) ;

/*note - no body size measures at wave 1*/

/*body size at wave 2*/
gen bmi_w2=bmivalw2n ;
mvdecode bmi_w2, mv(-1) ;
gen ht_w2=htvalw2n ;
mvdecode ht_w2, mv(-1) ;
gen wt_w2=wtvalw2n ;
mvdecode wt_w2, mv(-1) ;
gen waist_w2=wstvalw2n ;
mvdecode waist_w2, mv(-1) ;