tailieunhanh - báo cáo hóa học: " The minimal important difference of the hospital anxiety and depression scale in patients with chronic obstructive pulmonary disease"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí hóa học quốc tế đề tài : The minimal important difference of the hospital anxiety and depression scale in patients with chronic obstructive pulmonary disease | BioMed Central Health and Quality of Life Outcomes Open Access The minimal important difference of the hospital anxiety and depression scale in patients with chronic obstructive pulmonary disease Milo A Puhan 1 Martin Frey2 Stefan Buchi3 and Holger J Schunemann4 5 Address 1Horten Centre for patient-oriented research University Hospital of Zurich Switzerland 2Klinik Barmelweid Barmelweid Switzerland 3Department of Psychiatry University Hospital of Zurich Switzerland 4Clarity Research Group Department of Clinical Epidemiology and Biostatistics McMaster University Hamilton Ontario Canada and 5Department of Epidemiology Italian National Cancer Institute Regina Elena Rome Italy Email Milo A Puhan - Martin Frey - Stefan Buchi - Holger J Schunemann - hjs@ Corresponding author Published 2 July 2008 Received 21 January 2008 Health and Quality of Life Outcomes 2008 6 46 doi 1477-7525-6-46 Accepted 2 July 2008 This article is available from http content 6 1 46 2008 Puhan et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract_ Background Interpretation of the Hospital Anxiety and Depression Scale HADS commonly used to assess anxiety and depression in COPD patients is unclear. Since its minimal important difference has never been established our aim was to determine it using several approaches. Methods 88 COPD patients with FEV1 50 predicted completed the HADS and other patientimportant outcome measures before and after an inpatient respiratory rehabilitation. For the anchor-based approach we determined the correlation between the HADS and the .