Clinically Classified Periodontitis and Its Association in Patients with Preexisting Coronary Heart Disease

Table 1

Descriptive characteristics of the study population according to the bivariate analysis.

Periodontal parameters	No/mild periodontitis		Moderate periodontitis (≥2 interproximal sites PD ≥ 5.0 mm)		Severe periodontitis (≥2 interproximal sites CAL ≥ 4.0 mm and ≥interproximal site PD ≥ 5.0 mm)		𝑃
Variables	𝑁	(%)	𝑁	(%)	𝑁	(%)
Socioeconomic factors
Gender
Males	362	60.3	560	51.3	780	63.9	0.000*
Females	238	39.7	532	48.7	440	36.1
Income
Low	318	53.0	521	47.7	596	48.9	0.106
High	282	47.0	571	52.3	624	51.1
Education
Low	396	66.0	680	62.3	412	33.7	0.000*
High	204	34.0	412	37.7	808	66.3
Health habits
Smoking status
Smokers	356	59.3	476	43.6	564	46.2	0.000*
Nonsmokers	244	40.7	616	56.4	656	53.8
Tooth brushing
≥2 times/day	116	19.3	420	38.5	804	65.9	0.000*
≤2 times/day	484	80.7	672	61.5	416	34.1
General health
Diagnosed CHD
Yes	72	12.0	160	14.7	216	17.7	0.005*
No	528	88.0	932	85.3	1004	82.3
Diagnosed  hypertension
Yes	276	46.0	524	47.9	596	48.9	0.865
No	324	54.0	568	52.1	624	51.1
Diagnosed; diabetes mellitus
Yes	416	69.3	636	58.2	716	58.7	0.519
No	184	30.7	456	41.8	504	41.3
Biomarkers
Total cholesterol
Low	259	43.2	475	43.6	557	45.7	0.471
High	341	56.8	617	56.4	663	54.3
HDL-cholesterol
High	216	36.0	516	47.3	583	47.8	0.000*
Low	384	64.0	576	52.7	637	52.2
Triglycerides
Low	233	38.8	533	48.8	601	49.3	0.000*
High	367	61.2	559	51.2	619	50.7
C-reactive protein
Low	431	71.8	657	60.2	741	60.7	0.000*
High	169	28.2	435	39.8	479	39.3

^∗𝑃 value derived from the chi-square test.