TROMSO_STR3_AGE

Name: STR3_AGE

Description and values:

STR3_AGE gives the age (in years) at the time of exit from the follow-up of a likely haemorrhagic stroke.

The variable has no missing values.

Local variable explanation:

DIAGHEMO: Diagnose of haemorrhagic stroke (1=definite)

DATOHEMO: Date of diagnose of haemorrhagic stroke

FLYTTEDATO: Date of relocation from town/municipality

DATE_T4: Date of examination

DATO_DOD: Date of death

fdato: date of death

SAS code:

If DIAGHEMO = 1 and (sign(DATOHEMO -'31dec2010'd)=1 or sign(DATE_T4 - DATOHEMO)=1) then do;

DIAGHEMO=.;

DATOHEMO=.;

end;

IF DIAGHEMO = 1 and sign(DATOHEMO-FLYTTEDATO)=1 then do;

STR3_AGE=year(FLYTTEDATO) - year(fdato);

end;

ELSE IF DIAGHEMO = 1 and .<(DATO_DOD -DATOHEMO)<=28 then do; 

STR3_AGE=year(DATOHEMO) - year(fdato);

end;

else if DIAGHEMO = 1 then do; 

STR3_AGE=year(DATOHEMO) - year(fdato);

end;

else do;

STR3_AGE=year(min(FLYTTEDATO,dato_dod,'31dec2010'd)) - year(fdato);

end;

MORGAM_STR3_AGE

This was obtained from the MORGAM derived variable STRAGE5.

If STRAGE5 = 888.88 or 999.99, CONTACT_AGE is coded for STR3_AGE.