Preventative practices
Frequency of mammograms, by Autonomous Community. Females aged 20 years old and over who have had mammogram at some point in time
Units: percentages

	Total	At least once a year	Every two years	Every three years or more	Never	
Total	100.00	27.27	41.75	8.84	22.14	
Andalucía	100.00	24.59	36.17	8.19	31.06	
Aragón	100.00	30.76	38.77	6.01	24.46	
Asturias (Principado de)	100.00	28.27	45.46	8.95	17.31	
Balears (Illes)	100.00	22.71	39.01	15.20	23.07	
Canarias	100.00	29.08	39.45	14.14	17.33	
Cantabria	100.00	28.00	45.66	8.49	17.86	
Castilla y León	100.00	20.26	53.48	9.05	17.20	
Castilla-La Mancha	100.00	16.14	55.22	5.52	23.13	
Cataluña	100.00	30.38	41.57	10.53	17.51	
Comunitat Valenciana	100.00	23.32	47.49	7.30	21.90	
Extremadura	100.00	26.12	37.23	5.53	31.11	
Galicia	100.00	21.48	44.80	8.22	25.50	
Madrid (Comunidad de)	100.00	40.45	28.10	10.80	20.66	
Murcia (Región de)	100.00	24.42	43.38	6.65	25.55	
Navarra (Comunidad Foral de)	100.00	14.64	62.07	5.43	17.86	
País Vasco	100.00	27.48	50.87	3.99	17.66	
Rioja (La)	100.00	17.44	56.35	15.34	10.87	
Ceuta and Melilla	100.00	35.59	11.28	21.75	31.38	
Notes:
The symbol '.' shall be deemed as data which cannot be provided since it may be affected by sampling errors.
 The symbol '..' shall be deemed as data which is not collected.
 The symbol '...' shall be deemed as an 'error of division by zero'.
Source: Ministry of Health and Consumption and INE