Table 1.

Characteristics of the subjects according to diagnosis of periodontitis (male)

		Total		Non-Diagnosed		Diagnosed
		N	%	N	%	N	%	P-value
Total		8884	100	7403	83.3	1481	16.7
Age	30 ~ 39	2592	29.2	2160	83.3	432	16.7	1.0000
	40 ~ 49	3412	38.4	2843	83.3	569	16.7
	50 ~ 59	1860	20.9	1550	83.3	310	16.7
	≥ 60	1020	11.5	850	83.3	170	16.7
Smoking	Non-smoker	3560	40.1	2992	84.0	568	16.0	0.2452
	Ex-smoker	773	8.7	648	83.8	125	16.2
	Smoker	4551	51.2	3763	82.7	788	17.3
Alcohol	None	2757	31.0	2286	82.9	471	17.1	0.8023
	2 ~ 3/month	2049	23.1	1716	83.7	333	16.3
	1 ~ 2/week	2612	29.4	2183	83.6	429	16.4
	3 ~ 4/week	998	11.2	823	82.5	175	17.5
	≥ 5/week	468	5.3	395	84.4	73	15.6
Physical activity	None	4253	47.9	3563	83.8	690	16.2	0.4111
	1 ~ 2/week	2920	32.9	2434	83.4	486	16.6
	3 ~ 4/week	993	11.2	810	81.6	183	18.4
	5 ~ 7/week	718	8.1	596	83.0	122	17.0
BMI(kg/m2)	< 18.5	180	2.0	160	88.9	20	11.1	0.0001
	18.5 ~ 23	2990	33.7	2545	85.1	445	14.9
	23 ~ 27.5	4763	53.6	3938	82.7	825	17.3
	> 27.5	951	10.7	760	79.9	191	20.1
CCI	0	6310	71.0	5262	83.4	1048	16.6	0.9692
	1	1691	19.0	1407	83.2	284	16.8
	≥ 2	883	9.9	734	83.1	149	16.9
Hypertension	NO	8277	93.2	6897	83.3	1380	16.7	0.9829
	YES	607	6.8	506	83.4	101	16.6
Diabetes	NO	8568	96.4	7141	83.3	1427	16.7	0.8391
	YES	316	3.6	262	82.9	54	17.1
Osteoporosis	NO	8787	98.9	7326	83.4	1461	16.6	0.2942
	YES	97	1.1	77	79.4	20	20.6

IW industrial worker, SE self-employer, BMI body mass index, CCI Charlson comorbidity index