Sample characteristics		Total sample		Edentulous		Dentate
Sample characteristics		N	%	N	%	N	%
Gender	male	354	47.6%	123	60.3%	231	42.9%
Gender	female	389	52.4%	81	39.7%	308	57.1%
Place of residence	Athens	528	71.1%	143	70.1%	385	71.4%
Place of residence	Piraeus	215	28.9%	61	29.9%	154	28.6%
Long standing illness	yes	148	19.9%	45	22.1%	103	19.1%
Long standing illness	no	595	80.1%	159	77.9%	436	80.9%
Limited daily activity	yes	99	13.3%	27	13.2%	72	13.4%
Limited daily activity	no	644	86.7%	177	86.8%	467	86.6%
Age	65 - 74	365	49.1%	59	28.9%	306	56.8%
Age	75 - 94	378	50.9%	145	71.1%	233	43.2%
Living alone	yes	336	45.2%	120	58.8%	216	40.1%
Living alone	no	407	54.8%	84	41.2%	323	59.9%
Marital status	married	318	42.8%	62	30.4%	256	47.5%
	widowed	358	48.2%	135	66.2%	223	41.4%
	other	67	9.0%	7	3.4%	60	11.1%
Household Income (euro/per month)	>600	98	13.2%	34	16.7%	64	11.9%
	600 to 799	212	28.5%	83	40.7%	129	23.9%
	800 to 999	292	39.3%	65	31.9%	227	42.1%
	>999	141	19.0%	22	10.8%	119	22.1%
Subjective social status (SSS)	Low steps	259	34.9%	102	50.0%	157	29.1%
Subjective social status (SSS)	Medium and High	484	65.1%	102	50.0%	382	70.9%
Education level (ISCED-97)	>Lower secondary	498	67.0%	161	78.9%	337	62.5%
Education level (ISCED-97)	Lower secondary or above	245	33.0%	43	21.1%	202	37.5%
Occupation	manual	600	80.8%	43	21.1%	424	78.7%
Occupation	non manual	143	19.2%	28	13.7%	115	21.3%
Reason dental visits	occasionally orwhen in trouble	640	86.1%	199	97.5%	441	81.8%
Reason dental visits	regularly	103	13.9%	5	2.5%	98	18.2%
Remaining teeth	has 1 - 10	135	25.0%	-	-	135	25.0%
	has 11 to 19	167	31.0%	-	-	167	31.0%
	has 20 to 31	237	44.0%	-	-	237	44.0%
OHRQOL	has impact	225	30.3%	68	33.3%	157	29.1%
OHRQOL	no impact	518	69.7%	136	66.7%	382	70.9%