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. 2017 Jan 3;10:5. doi: 10.1186/s13104-016-2356-0

Fig. 1.

Fig. 1

Relationship curves for association between the numbers of decayed untreated teeth and body mass index (BMI) on a continuous basis. Adjusted Prevalence Ratios are indicated by a solid line and 95% confidence intervals by gray color derived from restricted cubic spline with 3 knots