Table 4.

Weighted multivariate Logistic regression analysis of the association between dental caries and C-reactive protein for individuals aged 30 years and above. Data were extracted from 2015–2018 NHANES cycles

Independent variables	Adjusted Odds ratio “AOR”	P value	95% Conf. Interval
C-Reactive protein	1.5	< 0.01	1.2 – 1.9
Age: Reference: 30–34
35–49	0.9	0.76	0.6—1.4
45–64	0.8	0.54	0.5—1.4
65 +	0.7	0.18	0.4 – 1.2
Sex: reference: males	0.7	0.05	0.6—1
Race: reference: Non-Hispanic white
Non-Hispanic black	1.7	< 0.01	1.3—2.3
Hispanic	0.8	0.42	0.6—1.2
Non-Hispanic Asian	0.6	0.05	0.4—1
Other races	1.3	0.28	0.7—2.3
Educational level: Reference: < high school
High school/GED	0.8	0.23	0.6 – 1.1
Some college or more	0.4	< 0.01	0.3—0.5
Diabetes Mellitus	1.2	0.21	0.8—1.7
Smoking	2.4	< 0.01	1.9 – 3.2
Coronary heart disease	0.9	0.87	0.5 – 1.7
Gum disease	0.9	0.4	0.8—1

C reactive protein (CRP) High and low levels of CRP are defined as =  > 3 mg/L and < 3.0 mg/L respectively. Smoking The status of smoking was relying on whether the participant is now smoking cigarettes or not. Diabetes if the Doctor informed you have diabetes before, Gum disease Do you think you might have gum disease?