had patient 5395 until 09/2105 been given a rdw lab test?
select count(*)>0 from labevents where labevents.itemid in ( select d_labitems.itemid from d_labitems where d_labitems.label = 'rdw' ) and labevents.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 5395 ) and strftime('%y-%m',labevents.charttime) <= '2105-09'