Clinical and Microbiological Profiles of Bronchial Anthracosis: A Hospital-based Cross-sectional Study in the Kashmir Valley, India

Introduction: Bronchial anthracosis is a chronic respiratory condition characterised by the deposition of carbon particles in the bronchial mucosa. It is frequently associated with prolonged exposure to environmental pollutants, biomass smoke, and occupational dust, particularly in low-resource and rural settings. Aim: To elucidate the clinical and microbiological profile of patients with bronchial anthracosis in the mountainous valley of Kashmir, India. Materials and Methods: This cross-sectional study involved 88 patients diagnosed with bronchial anthracosis who were recruited from a tertiary care hospital. Data were collected on demographics, co-morbidities, exposure history, and microbiological findings through Bronchoalveolar Lavage (BAL). Statistical analysis was performed using percentage distribution and logistic regression analysis. Results: The mean age of the patients was 62.4±8.7 years, with females comprising 59.0% of the study population. Biomass fuel exposure (34.1%) and smoking (39.8%) were identified as significant risk factors. Common co-morbidities included Chronic Obstructive Pulmonary Disease (COPD) and hypertension. The chief complaints were cough (26.1%) and breathlessness (13.6%). BAL analysis revealed various pathogens, with Mycobacterium tuberculosis identified in 10.2% of cases. Logistic regression analysis demonstrated significant associations between bronchial anthracosis and age, smoking, and biomass fuel exposure, emphasising the influence of environmental risk factors. Conclusion: The findings highlight the significant role of environmental and occupational exposures—particularly biomass fuel use and smoking—in the development of bronchial anthracosis. Older adults, especially housewives and farmers, were the most affected groups, emphasising the need for targeted public health interventions. The association of bronchial anthracosis with respiratory infections and comorbidities such as COPD underscores the importance of early detection and appropriate management. Preventive strategies, including reduction of indoor air pollution and implementation of smoking cessation programmes, are essential to mitigate the disease burden in the ethnic population of Kashmir, India.