Table 1

Description of the study population by demographic characteristics, socioeconomic positions and presence of chronic or rare disease (CRD). Rome, 09 October 2011, 25–99 year-olds

	Women			Men
	N	%	CRD %	N	%	CRD %
Total	964 284	100.0	22.6	815 959	100.0	20.5
Age group
25–34	111 020	11.5	7.3	109 249	13.4	4.1
35–44	183 215	19.0	11.4	168 718	20.7	6.8
45–54	188 238	19.5	18.0	172 612	21.2	13.5
55–64	161 308	16.7	29.2	139 744	17.1	27.0
65–74	155 190	16.1	35.3	123 719	15.2	38.8
75–84	117 525	12.2	34.8	80 142	9.8	43.4
85+	47 788	5.0	26.4	21 775	2.7	35.4
Education
High	222 564	23.1	13.8	202 431	24.8	13.5
Medium	441 904	45.8	22.5	390 909	47.9	21.7
Low	299 816	31.1	29.4	222 619	27.3	24.9
Real estate price quintiles
1 (highest)	194 493	20.2	18.5	153 399	18.8	17.2
2	195 388	20.3	21.1	159 989	19.6	19.6
3	198 106	20.5	24.1	165 548	20.3	21.9
4	188 765	19.6	24.7	162 473	19.9	22.0
5 (lowest)	187 532	19.4	24.9	174 550	21.4	21.6