Serum 25-hydroxyvitamin D is negatively associated with severe periodontitis: a cross-sectional study

BMC Oral Health

Table 2 Multiple logistic regression model for the association between 25(OH)D (nmol/L) and severe periodontitis in different models

Exposure	Model I		Model II		Model III
Exposure	OR, 95%CI	p value	OR, 95%CI	p value	OR, 95%CI	p value
Serum 25(OH)D, nmol/L
Severely deficient (< 25)	Reference		Reference		Reference
Deficient (25–49.9)	0.57 (0.35, 0.94)	0.029	0.51 (0.30, 0.86)	0.011	0.68 (0.37, 1.24)	0.208
Insufficient (50–74.9)	0.36 (0.22, 0.60)	< 0.001	0.27 (0.16, 0.45)	< 0.001	0.58 (0.31, 1.08)	0.086
Normal (≥ 75)	0.27 (0.16, 0.45)	< 0.001	0.16 (0.09, 0.28)	< 0.001	0.36 (0.19, 0.69)	0.002
P for trend	< 0.001			< 0.001
Serum 25(OH)D, per SD	0.69 (0.60, 0.79)	< 0.001	0.57 (0.49, 0.66)	< 0.001	0.75 (0.63, 0.89)	0.001

Model I: adjust for none
Model II: adjust for gender, age
Model III: adjust for gender; hypertension; direct HDL-Cholesterol, age, race/Hispanic origin, glycohemoglobin, education level, diabetes mellitus, BMI, marital status, creatinine, health insurance, smoking status, ratio of family income to poverty

ISSN: 1472-6831