Health care. Absolute figures Reason for the stay in hospital in the last 12 months by sex and level of studies. Population aged 15 years old and over that has been hospitalised in the last 12 months. Units: thousands of persons Total Surgical intervention Medical study for a diagnosis Medical treatment without surgical intervention Delivery (including cesarean section) Other reasons No data recorded BOTH SEXES Total 3,310.1 1,486.5 482.4 647.0 441.8 248.9 3.5 Cannot read or write, or incomplete primary education 618.2 235.0 143.7 184.3 6.9 47.4 0.9 Complete primary education 401.7 209.5 62.6 81.5 27.6 20.5 0.0 Secondary education, 1st stage 1,003.4 481.5 132.0 208.5 102.0 79.4 0.0 Secondary education, 2nd stage 629.2 275.1 84.8 97.7 137.3 34.5 0.0 Advanced professional training or the equivalent 153.1 84.4 9.4 16.2 23.0 18.5 1.6 University education 504.4 201.1 50.0 58.8 145.0 48.6 1.0 MALES Total 1,448.8 723.9 247.0 335.6 .. 139.6 2.6 Cannot read or write, or incomplete primary education 283.2 102.3 59.2 90.3 .. 31.5 0.0 Complete primary education 184.6 95.2 29.7 51.8 .. 8.0 0.0 Secondary education, 1st stage 482.6 255.6 74.5 104.8 .. 47.8 0.0 Secondary education, 2nd stage 234.5 125.4 49.5 39.9 .. 19.8 0.0 Advanced professional training or the equivalent 78.3 45.6 7.1 15.4 .. 8.6 1.6 University education 185.4 100.0 27.0 33.5 .. 24.0 1.0 FEMALES Total 1,861.3 762.6 235.4 311.3 441.8 109.2 0.9 Cannot read or write, or incomplete primary education 335.0 132.7 84.5 94.0 6.9 15.9 0.9 Complete primary education 217.1 114.3 32.9 29.7 27.6 12.5 0.0 Secondary education, 1st stage 520.8 225.9 57.5 103.8 102.0 31.6 0.0 Secondary education, 2nd stage 394.7 149.7 35.3 57.7 137.3 14.7 0.0 Advanced professional training or the equivalent 74.8 38.8 2.3 0.8 23.0 9.9 0.0 University education 319.0 101.1 23.0 25.3 145.0 24.7 0.0 Notes: The symbol '.' shall be deemed as data which cannot be given due to an insufficient sample. The symbol '..' shall be deemed as data which are not collected for this classification in the table. The symbol '...' shall be deemed as an 'error of division by zero. The data corresponding to cells with fewer than 35 thousand persons must be considered with caution, as they may be affected by a high degree of sampling error. Source: Ministry of Public Health, Social Services and Equality and INE