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The Impact of Inhaled Corticosteroids on the Prognosis of Chronic Obstructive Pulmonary Disease.
BACKGROUND: A comprehensive analysis of the effects of inhaled corticosteroids (ICS) on COPD in a real-world setting is required due to safety concerns regarding ICS in COPD. This study aimed to explore the impact of ICS on the prognosis of Asian COPD patients in the real-life world.
METHODS: We examined 978 COPD patients registered in the Korean National Health and Nutrition Examination Survey (KNHANES) database and with their data linked to Health Insurance and Review Assessment (HIRA) data. The outcome measures were ascertained by HIRA from January 1, 2009, to December 31, 2012. This study enrolled two arms; ICS users (N = 85, mean age = 66.7 ± 8.9 years) and non-ICS users (N = 893, mean age = 63.7 ± 9.7 years).
RESULTS: Compared to the non-ICS users, the ICS users had a higher rate of pneumonia, tuberculosis, and acute exacerbations ( P <0.05). Hospitalization due to respiratory causes was also higher among ICS users ( P <0.05). Multivariate analysis showed that acute exacerbation was independently associated with the development of pneumonia ( P <0.05), whereas ICS therapy had a tendency to be associated with pneumonia. Another multivariate analysis demonstrated that old age, FEV1 , ICS therapy, and pneumonia were independently associated with the occurrence of acute exacerbation ( P <0.05). The concomitant pneumonia (HR = 3.353, P = 0.004) was independently associated with higher mortality ( P <0.05).
CONCLUSION: Our data demonstrated that the ICS users had a higher rate of pneumonia and tuberculosis and the concomitant pneumonia was independently associated with higher mortality, highlighting the importance of cautious and targeted administration of ICS in COPD.
METHODS: We examined 978 COPD patients registered in the Korean National Health and Nutrition Examination Survey (KNHANES) database and with their data linked to Health Insurance and Review Assessment (HIRA) data. The outcome measures were ascertained by HIRA from January 1, 2009, to December 31, 2012. This study enrolled two arms; ICS users (N = 85, mean age = 66.7 ± 8.9 years) and non-ICS users (N = 893, mean age = 63.7 ± 9.7 years).
RESULTS: Compared to the non-ICS users, the ICS users had a higher rate of pneumonia, tuberculosis, and acute exacerbations ( P <0.05). Hospitalization due to respiratory causes was also higher among ICS users ( P <0.05). Multivariate analysis showed that acute exacerbation was independently associated with the development of pneumonia ( P <0.05), whereas ICS therapy had a tendency to be associated with pneumonia. Another multivariate analysis demonstrated that old age, FEV1 , ICS therapy, and pneumonia were independently associated with the occurrence of acute exacerbation ( P <0.05). The concomitant pneumonia (HR = 3.353, P = 0.004) was independently associated with higher mortality ( P <0.05).
CONCLUSION: Our data demonstrated that the ICS users had a higher rate of pneumonia and tuberculosis and the concomitant pneumonia was independently associated with higher mortality, highlighting the importance of cautious and targeted administration of ICS in COPD.
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