National tables: studies, age and sex. Percentages Persons 18 to 49 years by sex, parents' highest level of studies and communication with parents on sexuality. Units: percentages ;Total;Satisfactory;Unsatisfactory;No communication; Both sexes; Total;100.00;38.78;23.48;37.74; Lower than secondary education;100.00;34.52;23.28;42.19; Secondary education;100.00;51.06;24.18;24.76; University;100.00;52.06;23.98;23.96; Males; Total;100.00;39.88;22.35;37.77; Lower than secondary education;100.00;36.08;21.83;42.09; Secondary education;100.00;49.73;24.51;25.76; University;100.00;52.77;23.21;24.02; Females; Total;100.00;37.64;24.64;37.71; Lower than secondary education;100.00;32.94;24.76;42.30; Secondary education;100.00;52.29;23.87;23.84; University;100.00;51.22;24.89;23.89; 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