Table 4. Telomere length and the risk of lung cancer.

Telomere length		Lung cancer group	Control group	ORadj(95%CI)*	P*
Classified by quartile	RTL>1.27	23	80	1	—
	0.95<RTL≤1.27	47	48	2.625 (1.378∼5.002)	0.003
	0.73<RTL≤0.95	66	33	6.064 (3.164∼11.622)	<0.001
	RTL≤0.73	64	39	4.962 (2.619∼9.401)	<0.001
P		<0.001**	—	<0.001***	—
Classified by median	RTL>0.95	70	128	1	—
	RTL≤0.95	130	72	3.258 (2.118∼5.011)	0.009
P		<0.001**	—	—	—

ps: ^* is used unconditional Logistic regression to calculate OR and P values, Adjusted by gender, age, smoking status: ^** is the result of x²;^***: is the result of trend test.