Clinical efficacy of argon plasma coagulation combined with cryotherapy for central airway stenosis caused by lung cancer

Table 5 Comparison of adverse reactions

Group	Hypoxia	Bleeding	Arrhythmia	Fever
Control group (n = 43)	6 (13.95)	13 (30.23)	14 (32.56)	17 (39.53)
Observation group (n = 43)	7 (16.28)	5 (11.63)	6 (13.95)	8 (18.60)
χ²	0.301	2.121	2.042	2.137
P	0.763	0.034	0.041	0.033