Study on the efficacy of early treatment with pirfenidone on the lung function of patients with idiopathic pulmonary fibrosis

Figure 1  Comparison of the total effective rate of clinical treatment between the two groups.

Figure 2  Comparison of the frequency of adverse reactions (vomiting, nausea, anorexia) between the two groups of patients.

Figure 3 Comparison of symptom points between the two groups of patients. A: Shortness of breath; B: Fatigue; C: Cough; D: Spontaneous perspiration.

Figure 4 Comparison of the levels of pulmonary function indicators between the two groups. A: 1-s forced expiratory volume (FEV1); B: Forced vital capacity (FVC); C: FEV1/FVC.

Figure 5 Comparison of inflammatory factor indicators between the two groups of patients. A: C-reactive protein (CRP); B: Interleukin 2 (IL-2); C: IL-8.

Figure 6 Comparison of 6-min walking distance between the two groups of patients before and after therapy. A: Before therapy; B: After therapy.