Tablas nacionales: estudios, edad y sexo. Valores absolutos
Personas de 18 a 49 años por sexo, medidas de prevención del VIH/sida,  opinión sobre su eficacia, grupo de edad y estudios.
Unidades: miles de personas

,Total,,,,De 18 a 29 años,,,,De 30 a 39 años,,,,De 40 a 49 años,,,,
,Total,Inferior a secundaria,Secundaria,Universitarios,Total,Inferior a secundaria,Secundaria,Universitarios,Total,Inferior a secundaria,Secundaria,Universitarios,Total,Inferior a secundaria,Secundaria,Universitarios,
Ambos sexos,
    Lavarse después de las relaciones sexuales,
        Total,20.759,6,8.559,1,7.807,3,4.393,2,7.679,9,2.640,9,3.531,4,1.507,5,7.043,6,2.916,8,2.457,6,1.669,2,6.036,1,3.001,4,1.818,3,1.216,4,
        Eficaz,4.296,7,2.535,1,1.358,1,403,5,1.627,8,839,0,642,0,146,8,1.312,6,778,9,402,4,131,4,1.356,3,917,2,313,7,125,3,
        No eficaz,15.733,3,5.562,0,6.261,8,3.909,6,5.809,1,1.691,2,2.798,7,1.319,3,5.507,6,1.987,6,2.009,5,1.510,5,4.416,6,1.883,2,1.453,6,1.079,9,
        No consta,729,6,462,0,187,5,80,1,243,0,110,7,90,8,41,5,223,4,150,3,45,7,27,4,263,2,201,0,51,0,11,2,
    Elegir correctamente las parejas,
        Total,20.759,6,8.559,1,7.807,3,4.393,2,7.679,9,2.640,9,3.531,4,1.507,5,7.043,6,2.916,8,2.457,6,1.669,2,6.036,1,3.001,4,1.818,3,1.216,4,
        Eficaz,12.868,3,5.405,2,4.824,7,2.638,4,4.719,2,1.683,4,2.154,4,881,4,4.233,5,1.801,3,1.449,5,982,7,3.915,6,1.920,5,1.220,8,774,3,
        No eficaz,7.006,2,2.592,6,2.762,5,1.651,1,2.704,8,829,1,1.281,4,594,3,2.523,5,930,4,949,3,643,8,1.778,0,833,1,531,9,413,1,
        No consta,885,1,561,3,220,1,103,6,255,9,128,4,95,7,31,9,286,7,185,1,58,9,42,7,342,5,247,9,65,6,29,0,
    Tener pocas parejas,
        Total,20.759,6,8.559,1,7.807,3,4.393,2,7.679,9,2.640,9,3.531,4,1.507,5,7.043,6,2.916,8,2.457,6,1.669,2,6.036,1,3.001,4,1.818,3,1.216,4,
        Eficaz,8.892,1,4.044,9,3.107,7,1.739,5,3.043,2,1.176,8,1.326,2,540,1,2.939,1,1.341,2,960,2,637,7,2.909,9,1.526,9,821,4,561,6,
        No eficaz,10.822,3,3.885,7,4.414,3,2.522,3,4.340,1,1.324,8,2.092,6,922,8,3.766,6,1.368,8,1.414,9,982,8,2.715,6,1.192,1,906,8,616,7,
        No consta,1.045,2,628,5,285,3,131,5,296,6,139,3,112,6,44,6,338,0,206,8,82,5,48,7,410,7,282,5,90,1,38,1,
    Usar un preservativo masculino,
        Total,20.759,6,8.559,1,7.807,3,4.393,2,7.679,9,2.640,9,3.531,4,1.507,5,7.043,6,2.916,8,2.457,6,1.669,2,6.036,1,3.001,4,1.818,3,1.216,4,
        Eficaz,19.629,0,7.839,8,7.529,2,4.260,0,7.245,2,2.403,5,3.383,1,1.458,6,6.676,2,2.673,0,2.389,4,1.613,8,5.707,6,2.763,3,1.756,7,1.187,6,
        No eficaz,660,5,397,9,183,4,79,3,298,0,169,4,101,5,27,1,204,9,128,3,44,5,32,1,157,6,100,1,37,4,20,0,
        No consta,470,1,321,5,94,8,53,9,136,6,68,0,46,8,21,8,162,5,115,4,23,8,23,3,170,9,138,0,24,1,8,8,
    Usar espermicidas,
        Total,20.759,6,8.559,1,7.807,3,4.393,2,7.679,9,2.640,9,3.531,4,1.507,5,7.043,6,2.916,8,2.457,6,1.669,2,6.036,1,3.001,4,1.818,3,1.216,4,
        Eficaz,3.336,4,1.612,0,1.221,6,502,8,1.483,9,611,4,669,2,203,3,973,9,493,8,302,5,177,5,878,7,506,8,249,9,122,0,
        No eficaz,14.839,9,5.346,3,5.873,7,3.619,8,5.371,2,1.635,9,2.537,1,1.198,2,5.236,2,1.894,2,1.961,2,1.380,8,4.232,5,1.816,2,1.375,4,1.040,8,
        No consta,2.583,3,1.600,7,712,0,270,6,824,8,393,6,325,1,106,1,833,6,528,8,193,9,110,9,924,9,678,4,193,0,53,5,
    Pedir un test de sida a la pareja,
        Total,20.759,6,8.559,1,7.807,3,4.393,2,7.679,9,2.640,9,3.531,4,1.507,5,7.043,6,2.916,8,2.457,6,1.669,2,6.036,1,3.001,4,1.818,3,1.216,4,
        Eficaz,13.610,7,5.349,0,5.315,5,2.946,2,5.407,8,1.775,9,2.547,2,1.084,7,4.477,2,1.793,1,1.580,2,1.103,8,3.725,7,1.779,9,1.188,1,757,7,
        No eficaz,5.740,3,2.383,9,2.087,0,1.269,4,1.910,6,698,0,849,4,363,1,2.115,6,877,2,737,1,501,3,1.714,0,808,6,500,4,405,0,
        No consta,1.408,7,826,3,404,9,177,5,361,4,167,0,134,8,59,7,450,9,246,4,140,3,64,1,596,4,412,9,129,8,53,7,
    Hacerse la prueba con frecuencia,
        Total,20.759,6,8.559,1,7.807,3,4.393,2,7.679,9,2.640,9,3.531,4,1.507,5,7.043,6,2.916,8,2.457,6,1.669,2,6.036,1,3.001,4,1.818,3,1.216,4,
        Eficaz,12.141,4,5.451,6,4.644,5,2.045,4,4.924,2,1.835,6,2.299,1,789,4,3.826,2,1.807,8,1.287,9,730,5,3.391,1,1.808,2,1.057,4,525,5,
        No eficaz,7.569,7,2.466,6,2.896,8,2.206,3,2.500,1,677,8,1.150,4,671,8,2.859,4,912,2,1.063,4,883,7,2.210,3,876,5,683,0,650,7,
        No consta,1.048,5,640,9,266,0,141,5,255,6,127,5,81,9,46,3,358,1,196,8,106,3,55,0,434,7,316,7,77,8,40,2,
    Preguntar a las parejas por su pasado sexual,
        Total,20.759,6,8.559,1,7.807,3,4.393,2,7.679,9,2.640,9,3.531,4,1.507,5,7.043,6,2.916,8,2.457,6,1.669,2,6.036,1,3.001,4,1.818,3,1.216,4,
        Eficaz,8.449,8,3.876,7,3.127,6,1.445,5,3.658,0,1.379,2,1.647,0,631,8,2.582,6,1.252,7,851,7,478,2,2.209,2,1.244,8,628,9,335,5,
        No eficaz,11.373,1,4.070,3,4.434,8,2.868,0,3.791,0,1.143,0,1.802,2,845,7,4.146,6,1.461,1,1.525,7,1.159,9,3.435,5,1.466,3,1.106,9,862,3,
        No consta,936,7,612,1,244,9,79,7,230,9,118,7,82,2,30,0,314,4,203,0,80,3,31,1,391,4,290,3,82,4,18,6,
    Usar un preservativo femenino,
        Total,20.759,6,8.559,1,7.807,3,4.393,2,7.679,9,2.640,9,3.531,4,1.507,5,7.043,6,2.916,8,2.457,6,1.669,2,6.036,1,3.001,4,1.818,3,1.216,4,
        Eficaz,10.246,2,4.312,3,3.938,0,1.995,9,4.267,8,1.504,6,2.006,3,757,0,3.256,6,1.405,2,1.133,7,717,7,2.721,8,1.402,5,798,1,521,3,
        No eficaz,8.395,0,3.050,5,3.283,2,2.061,3,2.801,7,884,2,1.276,5,641,0,3.084,8,1.114,8,1.142,4,827,7,2.508,4,1.051,5,864,3,592,7,
        No consta,2.118,4,1.196,3,586,1,335,9,610,3,252,1,248,6,109,6,702,2,396,7,181,6,123,9,805,8,547,5,155,9,102,5,
Varones,
    Lavarse después de las relaciones sexuales,
        Total,10.532,1,4.530,4,4.058,5,1.943,3,3.932,5,1.528,5,1.800,0,604,0,3.584,4,1.560,9,1.290,4,733,2,3.015,2,1.441,0,968,1,606,0,
        Eficaz,2.372,5,1.437,7,750,7,184,1,851,7,477,7,317,6,56,5,749,6,459,1,237,1,53,4,771,3,501,0,196,0,74,3,
        No eficaz,7.806,3,2.851,4,3.227,9,1.727,0,2.951,6,990,1,1.433,1,528,4,2.725,4,1.015,9,1.039,2,670,3,2.129,3,845,4,755,6,528,3,
        No consta,353,3,241,2,79,9,32,2,129,2,60,7,49,3,19,2,109,5,85,9,14,1,9,5,114,6,94,6,16,5,3,5,
    Elegir correctamente las parejas,
        Total,10.532,1,4.530,4,4.058,5,1.943,3,3.932,5,1.528,5,1.800,0,604,0,3.584,4,1.560,9,1.290,4,733,2,3.015,2,1.441,0,968,1,606,0,
        Eficaz,6.954,2,3.007,6,2.705,3,1.241,3,2.618,6,1.037,8,1.189,7,391,1,2.237,6,1.010,3,799,2,428,1,2.098,0,959,5,716,4,422,1,
        No eficaz,3.178,2,1.253,5,1.259,9,664,8,1.195,7,430,3,562,6,202,9,1.203,8,454,5,464,3,285,0,778,6,368,7,233,0,176,9,
        No consta,399,7,269,3,93,2,37,1,118,2,60,5,47,7,10,0,143,0,96,1,26,8,20,1,138,5,112,8,18,7,7,1,
    Tener pocas parejas,
        Total,10.532,1,4.530,4,4.058,5,1.943,3,3.932,5,1.528,5,1.800,0,604,0,3.584,4,1.560,9,1.290,4,733,2,3.015,2,1.441,0,968,1,606,0,
        Eficaz,4.670,5,2.171,5,1.690,4,808,6,1.593,1,672,7,688,6,231,8,1.541,7,756,9,520,1,264,6,1.535,7,741,9,481,7,312,2,
        No eficaz,5.364,3,2.052,0,2.236,8,1.075,4,2.188,8,786,5,1.048,0,354,3,1.857,6,691,3,725,6,440,7,1.317,9,574,2,463,2,280,5,
        No consta,497,3,306,8,131,3,59,2,150,6,69,3,63,3,18,0,185,1,112,6,44,7,27,8,161,6,124,9,23,3,13,4,
    Usar un preservativo masculino,
        Total,10.532,1,4.530,4,4.058,5,1.943,3,3.932,5,1.528,5,1.800,0,604,0,3.584,4,1.560,9,1.290,4,733,2,3.015,2,1.441,0,968,1,606,0,
        Eficaz,10.016,4,4.175,9,3.958,7,1.881,8,3.722,7,1.397,1,1.743,3,582,3,3.413,4,1.441,7,1.262,0,709,7,2.880,3,1.337,1,953,4,589,8,
        No eficaz,275,1,170,9,60,7,43,5,136,2,88,5,33,5,14,2,84,2,51,8,15,9,16,5,54,7,30,6,11,4,12,7,
        No consta,240,6,183,6,39,1,18,0,73,7,42,9,23,2,7,6,86,8,67,4,12,5,6,9,80,1,73,3,3,3,3,5,
    Usar espermicidas,
        Total,10.532,1,4.530,4,4.058,5,1.943,3,3.932,5,1.528,5,1.800,0,604,0,3.584,4,1.560,9,1.290,4,733,2,3.015,2,1.441,0,968,1,606,0,
        Eficaz,1.779,0,860,3,679,9,238,9,811,0,356,0,364,1,90,9,521,7,263,5,169,1,89,1,446,3,240,8,146,7,58,9,
        No eficaz,7.356,0,2.763,6,2.999,6,1.592,9,2.690,1,954,8,1.263,0,472,3,2.567,2,960,7,1.007,0,599,5,2.098,7,848,1,729,6,521,0,
        No consta,1.397,0,906,5,379,0,111,5,431,4,217,7,172,9,40,8,495,5,336,7,114,3,44,5,470,1,352,1,91,9,26,2,
    Pedir un test de sida a la pareja,
        Total,10.532,1,4.530,4,4.058,5,1.943,3,3.932,5,1.528,5,1.800,0,604,0,3.584,4,1.560,9,1.290,4,733,2,3.015,2,1.441,0,968,1,606,0,
        Eficaz,6.711,2,2.766,1,2.714,9,1.230,2,2.701,2,1.026,9,1.270,2,404,1,2.193,7,934,0,807,2,452,6,1.816,2,805,2,637,5,373,5,
        No eficaz,3.099,8,1.318,8,1.139,4,641,6,1.045,7,405,9,456,5,183,3,1.152,9,497,5,407,3,248,1,901,3,415,3,275,6,210,3,
        No consta,721,1,445,5,204,2,71,4,185,6,95,7,73,3,16,7,237,9,129,4,75,9,32,5,297,6,220,5,55,0,22,2,
    Hacerse la prueba con frecuencia,
        Total,10.532,1,4.530,4,4.058,5,1.943,3,3.932,5,1.528,5,1.800,0,604,0,3.584,4,1.560,9,1.290,4,733,2,3.015,2,1.441,0,968,1,606,0,
        Eficaz,6.239,4,2.901,0,2.440,7,897,7,2.531,9,1.058,8,1.173,5,299,6,1.975,5,970,7,686,0,318,8,1.732,1,871,6,581,2,279,3,
        No eficaz,3.812,4,1.319,6,1.505,6,987,2,1.263,9,388,5,584,0,291,4,1.434,9,494,3,555,2,385,5,1.113,6,436,9,366,4,310,3,
        No consta,480,3,309,8,112,1,58,4,136,8,81,3,42,5,13,0,174,1,96,0,49,2,28,9,169,5,132,6,20,4,16,5,
    Preguntar a las parejas por su pasado sexual,
        Total,10.532,1,4.530,4,4.058,5,1.943,3,3.932,5,1.528,5,1.800,0,604,0,3.584,4,1.560,9,1.290,4,733,2,3.015,2,1.441,0,968,1,606,0,
        Eficaz,4.080,9,1.977,5,1.533,4,570,0,1.826,0,785,9,786,3,253,9,1.202,2,610,3,432,4,159,5,1.052,7,581,3,314,7,156,6,
        No eficaz,5.978,4,2.229,3,2.407,2,1.341,9,1.975,8,666,1,971,8,337,8,2.212,6,843,1,808,9,560,6,1.790,1,720,1,626,5,443,5,
        No consta,472,8,323,6,117,9,31,3,130,8,76,5,41,9,12,3,169,6,107,5,49,1,13,0,172,4,139,6,26,9,6,0,
    Usar un preservativo femenino,
        Total,10.532,1,4.530,4,4.058,5,1.943,3,3.932,5,1.528,5,1.800,0,604,0,3.584,4,1.560,9,1.290,4,733,2,3.015,2,1.441,0,968,1,606,0,
        Eficaz,5.173,0,2.251,2,2.042,9,878,9,2.190,2,854,0,1.029,2,307,0,1.607,8,715,2,585,9,306,7,1.375,0,682,0,427,7,265,3,
        No eficaz,4.296,3,1.664,5,1.727,8,904,0,1.430,7,533,7,646,2,250,8,1.586,8,625,2,600,8,360,9,1.278,7,505,7,480,7,292,3,
        No consta,1.062,8,614,7,287,8,160,3,311,6,140,8,124,5,46,2,389,8,220,5,103,6,65,6,361,5,253,3,59,6,48,5,
Mujeres,
    Lavarse después de las relaciones sexuales,
        Total,10.227,5,4.028,7,3.748,8,2.449,9,3.747,4,1.112,4,1.731,4,903,5,3.459,2,1.355,9,1.167,3,936,1,3.020,9,1.560,4,850,2,610,3,
        Eficaz,1.924,2,1.097,4,607,4,219,4,776,1,361,4,324,4,90,3,563,0,319,7,165,3,78,0,585,0,416,3,117,7,51,0,
        No eficaz,7.927,0,2.710,6,3.033,8,2.182,6,2.857,5,701,1,1.365,6,790,9,2.782,2,971,7,970,3,840,2,2.287,3,1.037,8,698,0,551,6,
        No consta,376,3,220,8,107,6,47,9,113,8,50,0,41,5,22,3,114,0,64,4,31,7,17,9,148,6,106,4,34,5,7,7,
    Elegir correctamente las parejas,
        Total,10.227,5,4.028,7,3.748,8,2.449,9,3.747,4,1.112,4,1.731,4,903,5,3.459,2,1.355,9,1.167,3,936,1,3.020,9,1.560,4,850,2,610,3,
        Eficaz,5.914,1,2.397,6,2.119,4,1.397,1,2.100,6,645,7,964,7,490,2,1.995,9,791,0,650,3,554,7,1.817,6,961,0,504,4,352,2,
        No eficaz,3.828,0,1.339,2,1.502,6,986,3,1.509,0,398,8,718,8,391,4,1.319,7,476,0,484,9,358,8,999,3,464,3,298,8,236,2,
        No consta,485,3,292,0,126,9,66,5,137,7,67,9,47,9,21,9,143,6,88,9,32,1,22,6,204,0,135,1,46,9,21,9,
    Tener pocas parejas,
        Total,10.227,5,4.028,7,3.748,8,2.449,9,3.747,4,1.112,4,1.731,4,903,5,3.459,2,1.355,9,1.167,3,936,1,3.020,9,1.560,4,850,2,610,3,
        Eficaz,4.221,6,1.873,3,1.417,4,930,9,1.450,1,504,1,637,6,308,3,1.397,4,584,2,440,1,373,1,1.374,1,785,0,339,7,249,4,
        No eficaz,5.458,0,1.833,7,2.177,5,1.446,8,2.151,3,538,3,1.044,6,568,5,1.908,9,677,5,689,3,542,1,1.397,7,617,9,443,6,336,2,
        No consta,547,9,321,7,154,0,72,2,146,0,70,0,49,3,26,7,152,8,94,1,37,8,20,9,249,1,157,6,66,8,24,7,
    Usar un preservativo masculino,
        Total,10.227,5,4.028,7,3.748,8,2.449,9,3.747,4,1.112,4,1.731,4,903,5,3.459,2,1.355,9,1.167,3,936,1,3.020,9,1.560,4,850,2,610,3,
        Eficaz,9.612,6,3.663,9,3.570,5,2.378,2,3.522,5,1.006,3,1.639,8,876,4,3.262,8,1.231,3,1.127,4,904,1,2.827,3,1.426,2,803,3,597,8,
        No eficaz,385,4,227,0,122,7,35,8,161,9,80,9,68,0,12,9,120,7,76,5,28,6,15,6,102,9,69,5,26,1,7,3,
        No consta,229,5,137,9,55,7,35,9,63,0,25,2,23,6,14,2,75,7,48,0,11,3,16,4,90,8,64,7,20,8,5,3,
    Usar espermicidas,
        Total,10.227,5,4.028,7,3.748,8,2.449,9,3.747,4,1.112,4,1.731,4,903,5,3.459,2,1.355,9,1.167,3,936,1,3.020,9,1.560,4,850,2,610,3,
        Eficaz,1.557,4,751,7,541,7,263,9,672,8,255,4,305,1,112,4,452,2,230,3,133,4,88,5,432,3,266,0,103,2,63,1,
        No eficaz,7.483,8,2.582,8,2.874,1,2.026,9,2.681,1,681,1,1.274,1,725,9,2.668,9,933,5,954,2,781,2,2.133,8,968,1,645,8,519,8,
        No consta,1.186,3,694,2,333,0,159,0,393,4,175,9,152,2,65,3,338,1,192,1,79,6,66,4,454,8,326,3,101,1,27,4,
    Pedir un test de sida a la pareja,
        Total,10.227,5,4.028,7,3.748,8,2.449,9,3.747,4,1.112,4,1.731,4,903,5,3.459,2,1.355,9,1.167,3,936,1,3.020,9,1.560,4,850,2,610,3,
        Eficaz,6.899,5,2.582,9,2.600,6,1.716,0,2.706,6,749,0,1.277,0,680,6,2.283,5,859,2,773,0,651,3,1.909,4,974,7,550,6,384,2,
        No eficaz,2.640,4,1.065,1,947,5,627,8,864,9,292,1,392,9,179,9,962,7,379,6,329,8,253,2,812,8,393,3,224,8,194,7,
        No consta,687,5,380,8,200,7,106,1,175,8,71,3,61,5,43,0,213,0,117,1,64,4,31,5,298,7,192,4,74,8,31,5,
    Hacerse la prueba con frecuencia,
        Total,10.227,5,4.028,7,3.748,8,2.449,9,3.747,4,1.112,4,1.731,4,903,5,3.459,2,1.355,9,1.167,3,936,1,3.020,9,1.560,4,850,2,610,3,
        Eficaz,5.902,0,2.550,6,2.203,8,1.147,7,2.392,3,776,8,1.125,7,489,8,1.850,7,837,1,601,9,411,7,1.659,0,936,6,476,2,246,2,
        No eficaz,3.757,3,1.147,0,1.391,2,1.219,1,1.236,2,289,4,566,4,380,4,1.424,4,418,0,508,2,498,2,1.096,6,439,7,316,6,340,4,
        No consta,568,2,331,1,153,8,83,2,118,9,46,2,39,3,33,3,184,1,100,8,57,1,26,1,265,2,184,1,57,4,23,7,
    Preguntar a las parejas por su pasado sexual,
        Total,10.227,5,4.028,7,3.748,8,2.449,9,3.747,4,1.112,4,1.731,4,903,5,3.459,2,1.355,9,1.167,3,936,1,3.020,9,1.560,4,850,2,610,3,
        Eficaz,4.368,9,1.899,2,1.594,3,875,4,1.832,0,593,3,860,7,377,9,1.380,4,642,4,419,3,318,7,1.156,5,663,4,314,2,178,8,
        No eficaz,5.394,7,1.841,1,2.027,6,1.526,1,1.815,2,476,9,830,4,507,9,1.934,1,618,0,716,7,599,3,1.645,4,746,2,480,4,418,8,
        No consta,463,9,288,5,127,0,48,4,100,1,42,2,40,2,17,7,144,8,95,5,31,2,18,1,219,0,150,8,55,5,12,7,
    Usar un preservativo femenino,
        Total,10.227,5,4.028,7,3.748,8,2.449,9,3.747,4,1.112,4,1.731,4,903,5,3.459,2,1.355,9,1.167,3,936,1,3.020,9,1.560,4,850,2,610,3,
        Eficaz,5.073,2,2.061,1,1.895,1,1.117,0,2.077,6,650,6,977,0,450,0,1.648,8,690,1,547,7,411,0,1.346,8,720,5,370,3,256,0,
        No eficaz,4.098,7,1.386,0,1.555,4,1.157,3,1.371,0,350,6,630,3,390,1,1.498,0,489,6,541,6,466,8,1.229,8,545,8,383,6,300,4,
        No consta,1.055,6,581,6,298,3,175,6,298,8,111,3,124,1,63,4,312,4,176,2,77,9,58,3,444,4,294,1,96,3,54,0,
Notas:
Los datos correspondientes a celdas con menos de 45.000 efectivos han de ser tomados con  precaución, ya que pueden estar afectados de elevados errores de muestreo.
Fuente: Instituto Nacional de Estadística