National tables: age and sex. Percentages
Persons 18 to 49 years by HIV/AIDS prevention methods,   opinion on efficiency, sex and age group.
Units: percentages

	Both sexes				Males				Females				
	Total	From 18 to 29 years of age	From 30 to 39 years of age	From 40 to 49 years of age	Total	From 18 to 29 years of age	From 30 to 39 years of age	From 40 to 49 years of age	Total	From 18 to 29 years of age	From 30 to 39 years of age	From 40 to 49 years of age	
Wash after having sexual relations	
    Total	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	
    Effective	21.45	21.89	19.25	23.49	23.31	22.39	21.57	26.59	19.53	21.36	16.83	20.37	
    Not effective	78.55	78.11	80.75	76.51	76.69	77.61	78.43	73.41	80.47	78.64	83.17	79.63	
Choose partners correctly	
    Total	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	
    Effective	64.75	63.57	62.65	68.77	68.63	68.65	65.02	72.93	60.71	58.19	60.20	64.52	
    Not effective	35.25	36.43	37.35	31.23	31.37	31.35	34.98	27.07	39.29	41.81	39.80	35.48	
Have few partners	
    Total	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	
    Effective	45.10	41.22	43.83	51.73	46.54	42.12	45.35	53.82	43.61	40.26	42.26	49.57	
    Not effective	54.90	58.78	56.17	48.27	53.46	57.88	54.65	46.18	56.39	59.74	57.74	50.43	
Use a male condom	
    Total	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	
    Effective	96.74	96.05	97.02	97.31	97.33	96.47	97.59	98.14	96.14	95.61	96.43	96.49	
    Not effective	3.26	3.95	2.98	2.69	2.67	3.53	2.41	1.86	3.86	4.39	3.57	3.51	
Use spermicides	
    Total	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	
    Effective	18.36	21.65	15.68	17.19	19.47	23.17	16.89	17.54	17.23	20.06	14.49	16.85	
    Not effective	81.64	78.35	84.32	82.81	80.53	76.83	83.11	82.46	82.77	79.94	85.51	83.15	
Ask partner to have an AIDS test	
    Total	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	
    Effective	70.34	73.89	67.91	68.49	68.40	72.09	65.55	66.83	72.32	75.78	70.34	70.14	
    Not effective	29.66	26.11	32.09	31.51	31.60	27.91	34.45	33.17	27.68	24.22	29.66	29.86	
Have an AIDS test frequently	
    Total	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	
    Effective	61.60	66.33	57.23	60.54	62.07	66.70	57.93	60.87	61.10	65.93	56.51	60.20	
    Not effective	38.40	33.67	42.77	39.46	37.93	33.30	42.07	39.13	38.90	34.07	43.49	39.80	
Ask partners about their sexual history	
    Total	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	
    Effective	42.63	49.11	38.38	39.14	40.57	48.03	35.21	37.03	44.75	50.23	41.65	41.27	
    Not effective	57.37	50.89	61.62	60.86	59.43	51.97	64.79	62.97	55.25	49.77	58.35	58.73	
Use a female condom	
    Total	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	100.00	
    Effective	54.97	60.37	51.35	52.04	54.63	60.49	50.33	51.81	55.31	60.25	52.40	52.27	
    Not effective	45.03	39.63	48.65	47.96	45.37	39.51	49.67	48.19	44.69	39.75	47.60	47.73	
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