Table 2.

Gastric cancer risk as estimated by average telomere length

Average telomere length	Case, n (%)	Control, n (%)	Adjusted OR † (95% CI)
By median
Long	127 (32)	189 (50)	1 (Reference)
Short	269 (68)	189 (50)	2.14 (1.52–2.93)
By quartile
First	51 (13)	94 (25)	1 (Reference)
Second	76 (19)	95 (25)	1.45 (0.97–2.23)
Third	110 (28)	95 (25)	2.11 (1.36–3.24)
Fourth	159 (40)	94 (25)	3.12 (2.01–4.79)
P for trend			<0.001

^† Adjusted by age, sex, Helicobacter pylori infection, smoking, and drinking status.

CI, confidence interval; OR, odds ratio.