2.

DNMT1的表达与肺鳞癌和腺癌临床病理因素的关系

Relationships between DNMT1 expression and clinicopathologic characteristics of lung squamous carcinoma and adenocarcinoma

Characteristics	n	Expression of DNMT1
		High expression (n)	High expression rate	χ2	P	r	P
Gender				5.626	0.018	0.262	0.017
Male	49	26	53.06%
Female	33	26	78.79%
Age				5.199	0.023	-0.253	0.022
＜61	36	28	77.78%
≥61	45	24	53.33%
Histological type				11.192	0.001	0.365	0.001
Squamous cell carcinoma	37	16	43.24%
Adenocarcinoma	47	37	78.72%
Differentiation				4.641	0.031	0.235	0.031
Well	26	12	46.15%
Moderate-poor	58	41	70.69%
Tumor size				0.241	0.623	0.054	0.625
＜3 cm	9	5	55.56%
≥3 cm	75	48	64.00%
Lymph node metastasis				5.085	0.024	0246	0.024
Yes	35	27	77.14%
No	49	26	53.06%