Table II.

Association between RFC3 expression and clinicopathological characteristics of 123 patients with lung adenocarcinoma.

Variables	RFC3 expression		Total	χ2	P-value
	Low expression	High expression
Total cases	66	57
Sex				0.012	0.914
Male	26	23	49
Female	40	34	74
Age				0.879	0.349
≤60 years	38	28	66
>60 years	28	29	57
Smoking history				2.897	0.089
Yes	27	15	42
No	39	42	81
TNM stage				6.409	0.011a
Stage I-II	60	42	102
Stage III-IV	6	15	21
Differentiation				5.139	0.023a
Well	39	22	61
Moderate/poor	27	35	62
Size				2.328	0.127
≤3 cm	49	35	84
>3 cm	17	22	39
Node status				5.747	0.017a
Positive	9	18	27
Negative	57	39	96

^aP<0.05, Pearson χ² test. RFC3, replication factor C subunit 3.