how many days has been passed since the last time patient 25814 stayed in careunit micu in this hospital encounter?
select 1 * ( strftime('%j',current_time) - strftime('%j',transfers.intime) ) from transfers where transfers.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 25814 and admissions.dischtime is null ) and transfers.careunit = 'micu' order by transfers.intime desc limit 1