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