Introduction: Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality throughout the world. By 2020, the World Health Organization predicts that COPD will become the third leading cause of death and the fifth leading cause of disability worldwide. The COPD is a complex disease characterized by slowly progressive and largely irreversible airflow obstruction due to chronic bronchitis and emphysema and associated with systemic inflammation.
Objective: This study aimed to correlate the plasma levels of high-sensitivity C-reactive protein (hs-CRP) with severity of COPD and pulmonary function tests [PFTs; according to Global Initiative for Chronic Obstructive Lung Disease (GOLD) stages] and find out the relation between hs-CRP levels and clinical parameters of age, number of pack years, and body mass index (BMI) of the patient.
Materials and methods: A cross-sectional study of 102 male patients with clinically and spirometrically diagnosed cases of COPD was performed. Data on patient’s demographic characteristics, pack years, BMI, PFTs, and hs-CRP were analyzed.
Results: A total of 76 of the patients had moderate airflow obstruction (GOLD stages II and III), mild airflow obstruction was present in 14 patients (GOLD stage I), and 12 patients had severe airflow obstruction (GOLD stage IV). The hs-CRP was normal in 6 patients, while it was raised in 96 patients. The value of hs-CRP was correlated with age, pack years, BMI, and GOLD stages. There was a significant negative correlation between hs-CRP and BMI and a significant positive correlation between hs-CRP and age, pack years, and GOLD stages.
Conclusion: A raised level of CRP in COPD indicates reduced lung function; it plays an important role in systemic inflammation. This study supports the role of hs-CRP as a simple, costeffective biochemical marker in the staging and determining the severity of COPD other than spirometry.
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