European Health Survey HOSPITALISATIONS Reason for the last hospital stay in the last 12 months by sex and educational level. Population aged 15 years old and over that had been hospitalised in the last 12 months. Units: percentage ;TOTAL;Surgical intervention;Medical study for diagnosis;Medical treatment without surgical intervention;Childbirth (including Caesarean);Other reasons; Both sexes; TOTAL;100.00;40.14;17.91;23.12;13.40;5.42; Basic and lower;100.00;39.04;21.03;26.53;7.19;6.21; Medium;100.00;44.30;13.18;20.46;18.68;3.38; Upper;100.00;39.34;13.86;16.47;25.18;5.15; Men; TOTAL;100.00;48.40;17.35;28.61;0.00;5.64; Basic and lower;100.00;43.12;18.88;32.08;0.00;5.92; Medium;100.00;61.22;12.13;22.88;0.00;3.77; Upper;100.00;53.33;17.18;23.14;0.00;6.36; Women; TOTAL;100.00;33.49;18.35;18.71;24.20;5.25; Basic and lower;100.00;35.41;22.94;21.57;13.61;6.47; Medium;100.00;33.31;13.87;18.89;30.81;3.13; Upper;100.00;28.97;11.39;11.53;43.86;4.25; Notes: 1) The symbol '.' shall be deemed as datum which cannot be given due to an insufficient sample The symbol '..' shall be deemed as datum which is not collected for this classification in the table The data corresponding to cells with less than 35 thousand persons must be considered with caution, as they may be affected by a high degree of sampling error Source: National Statistics Institute