1. Changes in Control Status of COPD Over Time and Their Consequences: A Prospective International Study
- Author
-
Marc Miravitlles, Pawel Sliwinski, Chin Kook Rhee, Richard W. Costello, Victoria Carter, Jessica H.Y. Tan, Therese Sophie Lapperre, Bernardino Alcazar, Caroline Gouder, Cristina Esquinas, Juan Luis García-Rivero, Anu Kemppinen, Augustine Tee, Miguel Roman-Rodríguez, Juan José Soler-Cataluña, David B. Price, Miriam Barrecheguren, Alexa Nuñez, Karina Hueso, Katarzyna Iwan, Jacek Kolakowski, Esther Ahn, Jessica Tan, Therese Laperre, Karen Tan Li Leng, Nicole Chia, Ong Thun How, SyifaBinte Shamsuddin, Sherine Lim Shu Gim, Yap Chwee Bee, Soh Rui Ya, Jun Jie Yan, Samuel Hong, William Tan, Latife Hardaker, and Andrew McLaughlin
- Subjects
Pulmonary and Respiratory Medicine ,Male ,medicine.medical_specialty ,Exacerbation ,03 medical and health sciences ,Pulmonary Disease, Chronic Obstructive ,0302 clinical medicine ,Internal medicine ,medicine ,Odds Ratio ,Humans ,In patient ,Prospective Studies ,COPD ,business.industry ,Odds ratio ,General Medicine ,medicine.disease ,Prognosis ,Response to treatment ,Confidence interval ,Hospitalization ,030228 respiratory system ,Multicenter study ,business ,Body mass index - Abstract
Introduction Control status may be a useful tool to assess response to treatment at each clinical visit in COPD. Control status has demonstrated to have long-term predictive value for exacerbations, but there is no information about the short-term predictive value of the lack of control and changes in control status over time. Method Prospective, international, multicenter study aimed at describing the short-term (6 months) prognostic value of control status in patients with COPD. Patients with COPD were classified as controlled/uncontrolled at baseline and at 3,6-month follow-up visits using previously validated criteria of control. Moderate and severe exacerbation rates were compared between controlled and uncontrolled visits and between patients persistently controlled, uncontrolled and those changing control status over follow-up. Results A total of 267 patients were analyzed: 80 (29.8%) were persistently controlled, 43 (16%) persistently uncontrolled and 144 (53.7%) changed control status during follow-up. Persistently controlled patients were more frequently men, with lower (not increased) body mass index and higher FEV1(%). During the 6 months following an uncontrolled patient visit the odds ratio (OR) for presenting a moderate exacerbation was 3.41 (95% confidence interval (CI) 2.47–4.69) and OR = 4.25 (95%CI 2.48–7.27) for hospitalization compared with a controlled patient visit. Conclusions Evaluation of control status at each clinical visit provides relevant prognostic information about the risk of exacerbation in the next 6 months. Lack of control is a warning signal that should prompt investigation and action in order to achieve control status.
- Published
- 2021