Insulin-like growth factor-1, IGF binding protein-3, and the risk of esophageal cancer in a nested case-control study

Table 3 Odds ratios and 95%CI for esophageal cancer according to molar ratio and difference of insulin-like growth factor-1 and insulin-like growth factor-binding protein-3

	Tertile			P value
	1 (referent)	2	3
IGF1/IGFBP3
Molar ratio	< 0.137	0.137-0.177	> 0.177
No. of case/control	9/29	11/28	11/29
OR (95%CI)	1	1.733 (0.517-5.851)	2.127 (0.554-8.164)	0.273
OR adjusted (95%CI)	1	1.486 (0.416-5.309)	1.810 (0.453-7.226)	0.408
IGFBP3-IGF1
Molar difference	< 87.77	87.77-108.14	> 108.14
No. of case/control	18/29	9/28	4/29
OR (95%CI)	1	0.432 (0.137-1.262)	0.107 (0.017-0.669)	0.015
OR adjusted (95%CI)	1	0.380 (0.115-1.250)	0.100 (0.015-0.674)	0.015

Adjusted: Adjusted for cigarette smoking, BMI, and alcohol intake.