Table 2.

Adjusted ORs of the risk of IR according to different characteristics determined by multiple logistic regression analysis

Characteristica	B	SE	P value	Adjusted OR	95% Confidence interval
					Lower	Upper
Age	0.65	0.27	0.14	1.85	0.46	2.99
Sex
Male			1.00 (reference)
Female	0.28	0.02	0.58	1.01	0.88	1.05
Smoking
No			1.00 (reference)
Yes	0.57	0.08	0.04	1.72	1.08	3.53
Body mass index	0.45	0.20	0.23	1.57	0.64	2.25
Diagnosis of periodontitis
No			1.00 (reference)
Yes	0.84	0.31	<0.001	2.42	1.49	3.48
CAL	0.38	0.13	0.06	1.52	0.93	2.42
Isolation of P. gingivalis
No			1.00 (reference)
Yes	0.76	0.14	<0.001	2.25	1.65	3.74

OR odds ratio, IR insulin resistance, B regression coefficient, SE standard error

^aWhen determining one characteristic, the other characteristics in this regression model were used as controlled confounding factors