Table 3.

Risk ratio (RR) of the associations between baseline HOMA-IR and increased number of sites with BOP or number of teeth with PPD ≥ 4mm and BOP at follow-up, N= 870

Models (HOMA-IR 3rd vs. 1, 2 tertiles)
Outcomes	Unadjusted		Multivariable Analysis*
	IRR (95%CI)	P value	IRR (95%CI)	P value
Sites with BOP†	1.17 (1.00 – 1.36)	0.05	1.19 (1.03 – 1.36)	0.02
Teeth with PPD≥ 4 mm and BOP‡	1.21 (0.93 – 1.57)	0.16	1.39 (1.09 – 1.78)	0.01

^*Adjusted for baseline age (years); male gender; smoking status (never, former, current); alcohol consumption (abstainer, former, current); educational level (< high school, high school, some college, college degree or higher); physical activity; WC; mean plaque index.

^†Additionally adjusted for baseline number of sites with BOP or

^‡Additionally adjusted for baseline number of teeth with PPD ≥ 4mm and BOP.