ARMA	Auto-Regressive Moving Average
CD	Crohn’s Disease
DRG	Diagnosis-Related Group
IBD	Inflammatory Bowel Disease
ICD-9-CM	International Classification of Diseases, 9th Revision, Clinical Modification
LHA	Local Health Authority
NHS	National Healthcare System
PPL	People
QOL	Quality of Life
SDO	Scheda di Dimissione Ospedaliera (hospital discharge form)
UC	Ulcerative Colitis