[Retracted] Analysis of Immunotherapy Combined with Radiotherapy in Patients with Brain Metastasis of Driver Gene-Negative Non-Small-Cell Lung Cancer

Table 3

Comparison of toxic and side effects between two groups (n, %).

Group	Single group (n = 85)	Combined group (n = 67)	χ ^2 value	value
Reactive capillary hyperplasia	0 (0.00%)	33 (49.25%)	53.475	<0.001
Leukopenia	24 (28.24%)	21 (31.34%)	0.174	0.677
Radiation brain injury	3 (3.53%)	4 (5.97%)	0.508	0.476
Immune-related pneumonia	0 (0.00%)	3 (4.48%)	3.883	0.049