A Prediction Rule for Overall Survival in Non-Small-Cell Lung Cancer Patients with a Pathological Tumor Size Less Than 30 mm

Table 4

Kaplan-Meier survival analysis of nomogram score groups for the training and validation sets.

Group	0-9.72 ( value)	9.72-17.67 ( value)	17.67-22.67 ( value)	≥22.67 ( value)
Training set
0-9.72	—	0.022	<0.001	<0.001
9.72-17.67	0.022	—	0.007	0.001
17.67-22.67	<0.001	0.007	—	0.569
≥22.67	<0.001	0.001	0.569	—
Validation set
0-9.72	—	0.067	0.013	0.001
9.72-17.67	0.067	—	0.106	0.072
17.67-22.67	0.013	0.106	—	0.512
≥22.67	0.001	0.072	0.512	—