National tables: studies, age and sex. Percentages
Persons 18 to 49 years by sex, age group, studies and  perception of risk of infection of HIV/AIDS by injectable  drugs.
Units: percentages

	Total	High risk	Intermediate risk	Low or no risk	Depends on whether they share syringes or not	
Both sexes	
    Total	
        Total	100.00	59.10	9.96	0.47	30.47	
        Lower than secondary education	100.00	61.48	10.21	0.86	27.45	
        Secondary education	100.00	58.70	9.28	0.30	31.72	
        University	100.00	55.22	10.68	0.03	34.08	
    From 18 to 29 years of age	
        Total	100.00	59.19	11.07	0.50	29.24	
        Lower than secondary education	100.00	60.55	11.18	0.99	27.29	
        Secondary education	100.00	60.84	10.46	0.35	28.35	
        University	100.00	52.94	12.33	0.02	34.71	
    From 30 to 39 years of age	
        Total	100.00	57.06	9.68	0.46	32.81	
        Lower than secondary education	100.00	60.66	10.52	0.76	28.06	
        Secondary education	100.00	55.10	7.96	0.42	36.52	
        University	100.00	53.71	10.76	0.00	35.53	
    From 40 to 49 years of age	
        Total	100.00	61.37	8.87	0.45	29.31	
        Lower than secondary education	100.00	63.10	9.07	0.84	26.99	
        Secondary education	100.00	59.40	8.80	0.05	31.75	
        University	100.00	60.11	8.51	0.08	31.31	
Males	
    Total	
        Total	100.00	59.30	11.71	0.68	28.30	
        Lower than secondary education	100.00	62.96	11.24	1.17	24.63	
        Secondary education	100.00	57.13	11.21	0.44	31.22	
        University	100.00	55.45	13.84	0.05	30.66	
    From 18 to 29 years of age	
        Total	100.00	59.03	12.55	0.79	27.63	
        Lower than secondary education	100.00	63.13	11.49	1.30	24.08	
        Secondary education	100.00	57.91	12.27	0.62	29.20	
        University	100.00	52.06	16.04	0.00	31.90	
    From 30 to 39 years of age	
        Total	100.00	57.81	11.21	0.60	30.38	
        Lower than secondary education	100.00	63.14	11.32	1.01	24.53	
        Secondary education	100.00	53.58	9.76	0.45	36.21	
        University	100.00	54.11	13.55	0.00	32.34	
    From 40 to 49 years of age	
        Total	100.00	61.45	11.21	0.63	26.71	
        Lower than secondary education	100.00	62.60	10.89	1.20	25.31	
        Secondary education	100.00	60.39	11.19	0.10	28.32	
        University	100.00	60.45	12.00	0.16	27.39	
Females	
    Total	
        Total	100.00	58.89	8.16	0.26	32.69	
        Lower than secondary education	100.00	59.83	9.06	0.51	30.60	
        Secondary education	100.00	60.41	7.19	0.15	32.25	
        University	100.00	55.03	8.16	0.01	36.80	
    From 18 to 29 years of age	
        Total	100.00	59.35	9.53	0.20	30.92	
        Lower than secondary education	100.00	57.02	10.74	0.55	31.68	
        Secondary education	100.00	63.89	8.58	0.06	27.47	
        University	100.00	53.53	9.85	0.03	36.59	
    From 30 to 39 years of age	
        Total	100.00	56.28	8.09	0.32	35.32	
        Lower than secondary education	100.00	57.84	9.60	0.47	32.09	
        Secondary education	100.00	56.79	5.95	0.39	36.87	
        University	100.00	53.39	8.58	0.00	38.04	
    From 40 to 49 years of age	
        Total	100.00	61.30	6.54	0.27	31.89	
        Lower than secondary education	100.00	63.55	7.40	0.52	28.52	
        Secondary education	100.00	58.26	6.06	0.00	35.68	
        University	100.00	59.77	5.04	0.00	35.20	
Notes:
Data corresponding to cells with less than 45,000 persons must be used with  caution, because they may be affected by high sample errors.
Source: National Statistics Institute