A detailed patient history comprising demographic data, social status, smoking habits, body mass index (BMI), use of medication, co-morbidity and the habitual lung function were registered. Dates of admittance and discharge were noted. Retrospectively, medical records were scrutinized for re-admissions due to COPD exacerbations at 12 months follow-up. Frequency of and date of re-admissions, length of hospital stay, and clinical data were recorded. Also frequency of admission due to COPD exacerbation and length of hospital stay(s) during the last 12 months prior to the TVC were recorded, and date of last discharge was noted. Finally, all patients were encouraged to complete a questionnaire concerning patient satisfaction and impact on patient's quality of life. All answers were registered anonymously.