has patient 32168 received a procedure of packed cell transfusion until 3 years ago?
select count(*)>0 from procedures_icd where procedures_icd.icd9_code = ( select d_icd_procedures.icd9_code from d_icd_procedures where d_icd_procedures.short_title = 'packed cell transfusion' ) and procedures_icd.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 32168 ) and datetime(procedures_icd.charttime) <= datetime(current_time,'-3 year')