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

Table 3 Comparison of symptom scores among the three groups of patients

Group	Number of cases	Shortness of breath	Fatigue	Cough	Spontaneous perspiration
Observation group	60	0.54 ± 0.18	0.61 ± 0.21	0.62 ± 0.23	1.12 ± 0.43
Later treatment group	55	1.56 ± 0.21	1.66 ± 0.32	1.85 ± 0.11	1.84 ± 0.12
Control group	53	1.94 ± 0.52	2.45 ± 0.63	2.83 ± 0.92	2.05 ± 0.53
F value		289.83	278.74	215.92	91.95
P value		0.000	0.000	0.000	0.000