TABLE 4.

Subgroup analysis of the association between Oxidative Balance Score and periodontitis.

Subgroup	Oxidative Balance Score [OR (95%CI)]	P for interaction
Sex		0.182
Male	0.85 (0.75, 0.95)
Female	0.93 (0.90, 0.96)
Age		0.046
<60 years	0.91 (0.84, 0.98)
≥60 years	0.83 (0.76, 0.91)
Race/Ethnicity		0.089
Non-Hispanic white	0.88 (0.81, 0.95)
Non-Hispanic black	0.79 (0.63, 0.95)
Mexican American	0.94 (0.85, 1.03)
Other race/Multiracial	0.92 (0.89, 0.96)
Education level, n (%)		0.579
Less than high school	0.85 (0.72, 0.98)
High school	0.91 (0.82, 1.00)
More than high school	0.81 (0.70, 0.92)
Diabetes, (%)		0.028
Yes	0.75 (0.56, 0.94)
No	0.98 (0.95, 1.02)
Borderline	0.93 (0.91, 0.95)

Age, gender, race, diabetes, cancer, PIR, triglycerides, klotho, and LDL-C were adjusted. PIR, ratio of family income to poverty; LDL-C, low-density lipoprotein cholesterol.