Abstract
The generic health-related quality of life (HRQOL) instrument 15D, and the disease-specific St. George's Respiratory Questionnaire (SGRQ) were highly correlated in cross-sectional and in follow-up data among asthmatic patients. However, a high correlation does not mean that these instruments yield similar results about outcome. We measured among 134 asthmatic patients the mathematical relationship between the changes in the scores of these instruments by regression techniques and agreement by cross-tabulation. The prospective data included measurements at baseline and at one, three and five years. The three measurements of change in HRQOL were compared with the baseline. There was a close mathematical relationship between the scores, but it was affected significantly by confounding factors such as patient's age, gender and smoking habits. The instruments agreed on the direction of change in HRQOL (positive or negative) in 64.8% of patients, while in 15.8% the changes were in opposite direction. There was a statistically significant difference in indicating the direction of changes (improvement or decline) of these instruments. The changes in the SGRQ scores agreed slightly better than those in the 15D with the changes in clinic...Continue Reading
Citations
Jul 27, 2005·Quality of Life Research : an International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation·Knut StavemKjell B Hellum
Jun 3, 2008·Arthritis and Rheumatism·Anne-Maree KeenanAlan Tennant
Feb 18, 2011·The Journal of Asthma : Official Journal of the Association for the Care of Asthma·Paula KauppiTarja Laitinen
Jun 21, 2014·BMC Pulmonary Medicine·Jukka KoskelaTarja Laitinen
Jul 18, 2014·BMC Pulmonary Medicine·Paula KauppiTarja Laitinen
Nov 10, 2014·Quality of Life Research : an International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation·Song-Lin He, Jin-Hua Wang
Apr 19, 2019·Journal of Maxillofacial and Oral Surgery·Kirti ChaudhryPrem Prakash Sharma
May 5, 2010·Plastic and Reconstructive Surgery·Benjamin C BrownArdeshir Bayat
Apr 1, 2007·Expert Review of Pharmacoeconomics & Outcomes Research·Mohsen Asadi-Lari, David Gray
Mar 1, 2011·Journal of Oral Pathology & Medicine : Official Publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology·Richeal Ni Riordain, Christine McCreary
May 16, 2012·Journal of Oral Pathology & Medicine : Official Publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology·Min Li, Song-Lin He
Aug 1, 2018·Ear and Hearing·Yawen ZhaoXin Ni
Nov 14, 2002·Obesity Research·Martina De ZwaanRoss D Crosby
Jan 18, 2011·Health and Quality of Life Outcomes·Witold MazurTarja Laitinen
Aug 23, 2012·Health and Quality of Life Outcomes·Sarah WilkeMartijn A Spruit
Apr 13, 2005·Disability and Rehabilitation·Arja HäkkinenJan Ylinen
Jan 18, 2013·Quality of Life Research : an International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation·Fotios AnagnostopoulosDimitris Niakas