Table 1.

Logistic Regression Analysis of Risk of Adenoma for Serum Levels of RBP4

	Including DM Pts.§				Excluding DM Pts.
	β ± SE	OR*	95% C.I.	p	β ± SE	OR*	95% C.I.	p
Base model**	0.32 ± 0.15	3.1	1.15 – 8.66	0.03	0.32 ± 0.16	3.13	0.01 – 9.49	0.04
Full model†	0.32 ± 0.15	3.1	1.11 – 8.97	0.03	0.32 ± 0.16	3.13	1.004 – 9.84	0.04
Full model +HOMA‡	0.32 ± 0.16	3.1	1.04 – 8.97	0.04	0.29 ± 0.17	2.82	0.87 – 8.84	0.09

^*ORs for each 35 µg/mL (approximately 1 standard deviation) increment of RBP4.

^**Base model adjusts for age, race and gender.

^†Full model adjusts for age, race, gender, BMI (body mass index), non-steroidal anti-inflammatory drug use (6 months or longer), known family history and smoking (pack years).

^‡33 missing values in HOMA-IR index.

^§diabetes treatment status is included in the three models as a covariate.