Fig. 2

Gender-stratified adjusted association of oral health indicators with poor OHRQoL by OHIP-14K (n = 675). DS: dental status (dentate [reference] versus denture); TOF: Total occlusion force (≥ 330 N [reference] versus < 330 N); NRT: number of total natural and rehabilitated (≥ 25 [reference] versus ≤ 24); NT: number of natural teeth (≥ 15 [reference] versus ≤ 14). Odds ratio (OR) was adjusted for age, education level, smoking, drinking, periodontitis, metabolic syndrome, and frailty in the multivariable logistic regression model. A diamond (black for men, white for women indicates OR, and bars indicate a 95% confidence interval. The horizontal dotted line is the reference as the null of association (OR = 1)