Table 5.

Multivariate-Adjusted ORs and 95% CIs of COPD Risk in Relation to Three Periodontal Variables

Periodontal Variables	OR	95% CI	P-value*
Pg	0.91	0.82–1.02	0.09
Plaque index (PLI)	3.55	1.03–12.2	0.045*
CAL≥5mm site percentages	1.05	1.01–1.10	0.01*

Notes: The logistic regression analyses were adjusted for age, gender, body mass index and smoking status. *P <0.05 statistically significant.

Abbreviations: OR, odd ratio; CI, confidence interval; COPD, chronic obstructive pulmonary disease; Pg, Porphyromonas gingivalis; CAL, clinical attachment level.