Analysis of correlation between hemoptysis or blood sputum symptoms and clinical diagnosis of cases with suspicious tuberculosis

Objective To provide a scientific evidence-based basis for diagnosis and treatment by analysis of occurrence frequency of hemoptysis, bloody sputum symptoms in the common respiratory diseases. Methods Four thousand nine hundred thirty-eight cases with suspicious tuberculosis were divided into hemoptysis or blood sputum group (346 cases, group A) and non-hemoptysis or non-blood sputum group (4 592 cases, group B). Frequencies and percentages of pulmonary tuberculosis (including bacteriological positive and bacteriological negative), non-tuberculosis lung diseases (including lung cancer, pneumonia, and other lung diseases), and healthy people (including inactive tuberculosis and normal lung) were analyzed and compared retrospectively. Results There were 210 cases (60.69%) with pulmonary tuberculosis, 68 cases (19.65%) with non-tuberculosis lung diseases, and 68 healthy individuals (19.65%) in group A, while those in group B were 2 736 cases (59.58%), 756 cases (16.46%), and 1 100 cases (23.95%). χ2 test showed that the incidences of pulmonary tuberculosis, bacteriological positive tuberculosis, lung cancer, and other lung diseases in group A were significantly higher than those in group B (P 0.05). Conclusions The cases with hemoptysis or blood sputum symptoms are likely to suffer from tuberculosis, especially bacteriological positive tuberculosis. And we must pay attention to differentiating from lung cancer. Key words: Tuberculosis/lung; Suspicious symptoms; Hemoptysis; Clinical diagnosis