Clinical study of NFNC in the treatment of acute exacerbation chronic obstructive pulmonary disease patients with respiratory failure

Table 2 Summary of the levels of comfort in the two patient groups

Group		Nose discomfort	Pain	Chest discomfort	Throat discomfort
Control group (40)	Treatment 3 d difference	1.37 ± 0.38	0.56 ± 0.20	0.49 ± 0.15	1.24 ± 0.32
	Treatment 5 d difference	1.22 ± 0.34	0.41 ± 0.18	0.45 ± 0.12	1.01 ± 0.33
Therapy group (40)	Treatment 3 d difference	1.01 ± 0.22a	0.55 ± 0.19	0.30 ± 0.14a	0.68 ± 0.35a
	Treatment 5 d difference	0.89 ± 0.28a	0.37 ± 0.20	0.28 ± 0.15a	0.47 ± 0.25a

^aP < 0.05.

Compared with control group.