Dyspnea, Obstruction, Smoking, Exacerbation Index, and Chronic Obstructive Pulmonary Disease Test Score: Correlation in Predicting Outcomes in Patients with Chronic Obstructive Pulmonary Disease Exacerbations
Keywords :
Chronic obstructive pulmonary disease, Chronic obstructive pulmonary disease test, Dyspnea, Obstruction, smoking, and exacerbation index, Global initiative for chronic obstructive lung disease
Citation Information :
Mishra R, Daga M K, Rohatgi I, Mawari G, Hira H. Dyspnea, Obstruction, Smoking, Exacerbation Index, and Chronic Obstructive Pulmonary Disease Test Score: Correlation in Predicting Outcomes in Patients with Chronic Obstructive Pulmonary Disease Exacerbations. Indian J Chest Dis Allied Sci 2022; 64 (3):153-159.
Objectives: Chronic obstructive pulmonary disease (COPD) being a disease with systemic consequences necessitate the use of multidimensional indices for a comprehensive assessment of the disease's impact including the future risk of exacerbations and mortality. To study the role of dyspnea, obstruction, smoking, and exacerbation (DOSE) index as a predictor of future disease severity and its correlation with chronic obstructive pulmonary disease test (CAT) score. Measurements and results: A total of 60 inpatients with COPD exacerbations were followed up for 6 months to record the number of exacerbations of COPD. The DOSE index and CAT score were calculated after stabilization within 48 hours of admission, at 1 week, and again at 6 months. The mean difference between DOSE index score at admission and at 1 week was 1.382 ± 0.561 and at admission and at 6 months was 2.15 ± 0.988, both being statistically significant (p < 0.001). A high DOSE index score (≥4) was associated with a greater risk of 2 or more exacerbations [odds ratio (OR), 12 (3.09–46.60) and risk estimate, 3.75 (1.53–9.17)]. For the prediction of exacerbations, the area under the curve (AUC) was larger for the DOSE index (0.854) than the global initiative for chronic obstructive lung disease (GOLD) stage (0.789), p < 0.001 for both. Furthermore, DOSE index correlated significantly with the CAT score, an established health status measure, at all stages of disease severity; at the onset of exacerbation (r = 0.719, p < 0.001), after stabilization at 1 week (r = 0.736, p < 0.001) and at 6 months (r = 0.884, p < 0.001). Conclusion: The DOSE index is a simple, practical multidimensional grading tool for assessing current symptoms, health status, and future risk in COPD and acts as a guide to disease management as its component items can be modified by interventions. Its correlation with CAT, a well-known score is a novel observation, which further corroborates the validity of the DOSE index.
Mathers CD, Loncar D. Projections of global mortality and burden of disease from 2002 to 2030. PLoS Med 2006;3(11):e442. DOI: 10.1371/journal.pmed.0030442.
Halbert RJ, Natoli JL, Gano A. et al. Global burden of COPD: Systematic review and meta-analysis. Eur Respir J 2006;28(3):523–532. DOI: 10.1183/09031936.06.00124605.
Pena VS, Miravitlles M, Gabriel R, et al. Geographic variations in prevalence and underdiagnosis of COPD: Results of the IBERPOC multicentre epidemiological study. Chest J 2000;118(4):981–989. DOI: 10.1378/chest.118.4.981.
Tálamo C, de Oca MM, Halbert R, et al. Diagnostic labeling of COPD in five Latin American cities. Chest J 2007;131(1):60–67. DOI: 10.1378/chest.06-1149.
Bhome AB. COPD in India: Iceberg or volcano? J Thorac Dis 2012;4(3):298–309. DOI: 10.3978/j.issn.2072-1439.2012.03.15.
Jindal SK. A field study on follow-up at 10 years of prevalence of chronic obstructive pulmonary disease and peak expiratory flow rate. Indian J Med Res 1993;98:20–26. PMID: 8495985.
Miravitlles M, Murio C, Guerrero T, et al. On behalf of the DAFNE study group: Costs of chronic bronchitis and COPD. A one year follow-up study. Chest 2003;123(3):784–791. DOI: 10.1378/chest.123.3.784.
Miravitlles M, Ferrer M, Pont A, et al. Exacerbations impair quality of life in patients with chronic obstructive pulmonary disease: A two-year follow-up study. Thorax 2004;59(5):387–395. DOI: 10.1136/thx.2003.008730.
Anzueto A. Impact of exacerbations on COPD. Eur Respir Rev 2010;19(116):113–118. DOI: 10.1183/09059180.00002610.
Soler J, Sánchez L, Latorre M, et al. The impact of COPD on hospital resources: The specific burden of COPD patients with high rates of hospitalization. Arch Bronconeumol 2001;37:375–381. DOI: 10.1016/s0300-2896(01)78818-7.
Jones PW, Quirk FH, Baveystock CM, et al. A self-complete measure of chronic airflow limitation: The St George's Respiratory Questionnaire. Am Rev Respir Dis 1992;145(6):1321–1327. DOI: 10.1164/ajrccm/145.6.1321.
Jones PW, Harding G, Berry P, et al. Development and first validation of the COPD Assessment Test. Eur Respir J 2009;34(3):648–654. DOI: 10.1183/09031936.00102509.
van der Molen T, Willemse BW, Schokker S, et al. Development, validity and responsiveness of the clinical COPD questionnaire. Health Qual Life Outcomes 2003;1:13. DOI: 10.1186/1477-7525-1-13.
Chavannes NH, Jones RCM, Postma DS, et al. Using COPD multidimensional indices in routine clinical practice: DOSE meets all criteria. Prim Care Respir J 2012;21(3):245–246. DOI: 10.4104/pcrj.2012.00066.
Global Initiative for Chronic Obstructive Lung Disease (GOLD). Global strategy for the diagnosis, management and prevention of chronic obstructive lung disease 2017 report. Respirology 2017;22(3):575–601. DOI: 10.1111/resp.13012.
van Dijk WD, van den Bemt L, van den Haak–Rongen S, et al. Multidimensional prognostic indices for use in COPD patient care: A systematic review. Respir Res 2011;12(1):151. DOI: 10.1186/1465-9921-12-151.
Gruffydd–Jones K, Jones MM. NICE guidelines for chronic obstructive pulmonary disease: Implications for primary care. Br J Gen Pract 2011;61(583):91–92. DOI: 10.3399/bjgp11X556182.
Lange P, Marott J, Vestbo J, et al. Prediction of the clinical course of chronic obstructive pulmonary disease, using the new GOLD classification. Am J Respir Crit Care Med 2012;186(10):975–981. DOI: 10.1164/rccm.201207-1299OC.
de Torres JP, Casanova C, Marín JM, et al. Prognostic evaluation of COPD patients: GOLD 2011 versus BODE and the COPD comorbidity index COTE. Thorax 2014;69(9):799–804. DOI: 10.1136/thoraxjnl-2014-205770.
Han MK, Muellerova H, Curran–Everett D, et al. GOLD 2011 disease severity classification in COPDGene: A prospective cohort study. Lancet Respir Med 2013;1(1):43–50. DOI: 10.1016/S2213-2600(12)70044-9.
Jones R, Donaldson G, Chavannes N, et al. Derivation and validation of a composite index of severity in chronic obstructive pulmonary disease. Am J Respir Crit Care Med 2009;180(12):1189–1195. DOI: 10.1164/rccm.200902-0271OC.
Sundh J, Janson C, Lisspers K, et al. The dyspnoea, obstruction, smoking, exacerbation (DOSE) index is predictive of mortality in COPD. Prim Care Respir J 2012;21(3):295–301. DOI: 10.4104/pcrj.2012.00054.
Motegi T, Jones, Ishii T, et al. A comparison of three multidimensional indices of COPD severity as predictors of future exacerbations. Int J Chron Obstruct Pulmon Dis 2013;259–271. DOI: 10.2147/COPD.S42769.
Rolink M, van Dijk W, van den Haak–Rongen S, et al. Using the DOSE index to predict changes in health status of chronic obstructive pulmonary disease patients. Prim Care Respir J 2013;22(2):169–174. DOI: 10.4104/pcrj.2013.00033.
Dayal HH, Khuder S, Sharrar R, et al. Passive smoking in obstructive respiratory disease in an industrialized urban population. Environ Res 1994;65:161–171. DOI: 10.1006/enrs.1994.1029.
Jindal SK, Aggarwal AN, Gupta D, et al. Indian study on epidemiology of asthma, respiratory symptoms and chronic bronchitis in adults (INSEARCH). Int J Tuberc Lung Dis 2012;16(9):1270–1277. DOI: 10.5588/ijtld.12.0005.
Pauwels RA, Buist AS, Calverley PM, et al. GOLD Scientific Committee, Global strategies for the diagnosis, management, and prevention of chronic obstructive pulmonary disease. NHLBI/WHO Global Initiative for Chronic Obstructive Lung Disease (GOLD) Workshop Summary. Am J Respir Crit Care Med 2001;163:1256–1276. DOI: 10.1164/ajrccm.163.5.2101039.
Wang L, Tao YX, Dong XY, Zhang Q, Zheng H, Zheng YS, Tang XY, Xu JR, Zhao Y. Demographic, health behavioral, and self-management abilities associated with disease severity among patients with chronic obstructive pulmonary disease: An exploratory study. International Journal of Nursing Practice. 2017 Feb;23(1):e12509.
Zhang J, Miller A, Li Y, et al. Comparison of multiple chronic obstructive pulmonary disease (COPD) indices in Chinese COPD patients. Tubercul Respir Dis (Seoul) 2018;81(2):116–122. DOI: 10.4046/trd.2017.0082.
Kerkhof M, Freeman D, Jones R, et al. Predicting frequent COPD exacerbations using primary care data. Int J Chron Obstruct Pulmon Dis 2015;10:2439. DOI: 10.2147/COPD.S94259.
Jones PW. COPD assessment test: Rationale, development, validation and performance. J COPD 2013;10(2):269–271. DOI: 10.3109/15412555.2013.776920.