Table 2. Multivariate logistic analysis for identifying independent risk factors for CRC.

Variable	OR	95% CI	P value
Age	1.111	1.072–1.151	<0.001
Sex	2.111	1.067–4.174	0.032
OHI	1.769	1.116–2.804	0.015
Dd	1.156	1.05–1.272	0.003

All P value <0.05. CRC, colorectal cancer; OR, odds ratio; CI, confidence interval; OHI, oral hygiene index; Dd, Desulfovibrio desulfuricans.