Table 6.

Logistic regression analysis of variables with Coronary Heart Disease (CHD)

Variables		Crude odd ratio (95% CI)	Adjusted Odds ratio (95% CI)	p- value
Age	35-44 years	Ref.	Ref.	0.99
	45-54 years	1.00 (0.80-1.26)	0.51 (0.38- 0.67)
	55-65 years	1.01 (0.78-1.31)	0.28 (0.20- 0.40)
Gender	Females	Ref.	Ref.	0.84
	Males	1.02 (0.83 –1.25)	0.82 (0.63- 1.07)
Education	Primary school	0.60 (0.48 – 0.74)	0.71 (0.55- 0.93)	0.001*
	High school	0.32 (0.24 – 0.45)	0.45 (0.30- 0.67)
	University	Ref.	Ref.
Dental visit	Yes	Ref.	Ref.	0.001*
	No	1.63 (1.31 – 2.02)	1.62 (1.22-2.16)
Last Dental visit	6 months- 1 year	Ref.	Ref.	0.001*
	>1 year	0.54 (0.37 – 0.78)	0.59 (0.36- 0.97)
History of tobacco use	No	Ref.	Ref.	0.001*
	Yes	2.26 (1.78 – 2.86)	0.89 (0.62- 1.30)
History of alcohol use	No	Ref.	Ref.	0.001*
	Yes	1.83 (1.40 – 2.41)	0.97 (0.64- 1.47)
Method of cleaning	Tooth brush and toothpaste	Ref.	Ref.	0.02*
	Any other	0.71(0.53 – 0.94)	1.15 (0.81- 1.64)
Frequency of cleaning	Twice or more	Ref.	Ref.	0.001*
	Once	3.38 (1.71 – 6.69)	2.54 (1.14- 5.66)
OHI-S	Good, Fair	Ref.	Ref.	0.001*
	Poor	5.2 (4.20-6.45)	2.30 (157-3.36)
CPI	Code 1,2	Ref.	Ref.	0.001*
	Code 3,4	6.70 (4.72-9.52)	3.06 (2.03-4.60)
LOA	Code 0,1,2	Ref.	Ref.	0.001*
	Code 3,4	11.31 (7.67-16.68)	6.46 (4.24-9.85)

*statistically significant (p≤0.05), CI= Confidence Interval

OHI-S- Simplified- Oral Hygiene Index; CPI- Community Periodontal Index; LOA-Loss of Attachment