At each outpatient consultation (telephone or face-to-face), the clinician will record details of the consultation including date of the visit and duration of the consultation. Abortive telephone calls will be recorded as well as face-to-face appointments missed. For telephone consultations, it will be noted whether calls were local, national, or made to mobile phones. Data on inpatient admissions, any investigations or procedures, and treatments received will be abstracted from the patient's hospital records. A patient/carer diary (Appendix IV) will be used to collect information on drug utilisation (name, dose, frequency, and duration), GP visits, and care received at other hospitals. Patients will be asked to complete the diary every time they visited their GP, changed their regular medications, or were seen at other hospitals. Diary information will be collated 6-monthly. Resource use that was clearly unrelated to IBD will be excluded from the economic evaluation.