Dental Calculus Is Associated with Death from Heart Infarction

Table 4

Results of multiple logistic regression analysis of the relationship between death from heart infarction as a dependent variable and calculus index as independent variable with control for age, gender, dental visits, dental plaque, periodontal pockets, education, income, socioeconomic status, and pack-years of smoking.

Dependent variable	Explaining variable	Beta	Chi-square	𝑃 value	OR (95% CI)
Death from heart infarction	Dental calculus	0.834	4.323	0.038	2.30 (1.05–5.06)

Cox and Snell 𝑅², final solution could not be determined; Nagelkerke 𝑅²=0.049.