γ-H2AX: A Novel Prognostic Marker in a Prognosis Prediction Model of Patients with Early Operable Non-Small Cell Lung Cancer

Table 1

Characteristics of the prediction variables.

Variables	No. of patients	Percentage (%)
Total number of patients	96
Age (years)
Mean ± SD	65.64±7.23
<65	36	37.5
≥65	60	62.5
Gender
Male	77	80.2
Female	19	19.8
Histology
Adenocarcinoma	42	43.8
Squamous cell carcinoma	42	43.8
Large cell carcinoma	8	8.3
Undifferentiated carcinoma	4	4.1
T status
T1	13	13.5
T2	65	67.7
T3	18	18.8
Regional lymph node status (N)
N0	50	52.1
N1	27	28.1
N2	19	19.8
Stage
I	41	42.7
II	22	22.9
III	31	32.3
IV	2	2.1
Grade
Low	25	26
Medium/high	71	74
Border of bronchus
Positive	12	12.5
Negative	84	87.5
FEV1 < 70%	17	17.7
Positive vessel infiltration	41	42.7
Positive lymphatic infiltration	21	21.9
Positive pleural infiltration	46	47.9
Chemotherapy adjuvant	72	75.0
Radiotherapy adjuvant	41	42.7
High expression of P53	55	57.3
High expression of caspase 3	24	25.0
High expression of 𝛾-H2AX	25	26.0
High expression of Ki67	29	30.2