Disability, Independence and Dependency Situations Survey Carers and Personal Assistance. National results: Relative figures Percentage of persons with disabilities, according to the level of studies, age, and sex of the main carer Units: Rate per 100 persons with disabilities who receive personal care Total Up to 29 years old 30 to 44 years old 45 to 64 years old 65 to 79 years old 80 years old and over Both sexes Males Females Both sexes Males Females Both sexes Males Females Both sexes Males Females Both sexes Males Females Both sexes Males Females Total 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 Cannot read or write 3.64 3.46 3.70 0.40 1.26 0.20 0.54 0.58 0.53 2.20 1.63 2.32 8.71 5.70 10.30 9.29 7.95 10.69 Incomplete primary education 21.81 24.58 20.92 8.71 1.87 10.25 8.90 7.73 9.20 16.49 12.89 17.31 40.83 41.13 40.67 47.83 47.05 48.63 Primary education or the equivalent 33.61 31.34 34.33 23.94 12.17 26.59 28.98 27.69 29.31 37.32 34.45 37.97 33.03 32.47 33.33 28.60 29.22 27.96 Secondary education, 1st stage 13.81 12.01 14.38 20.24 24.88 19.19 20.64 17.70 21.39 15.19 15.80 15.05 5.49 5.72 5.37 5.81 5.47 6.16 Upper-secondary education 9.85 9.74 9.88 20.11 19.89 20.17 12.72 13.36 12.56 10.96 13.72 10.33 4.45 4.66 4.33 3.43 2.98 3.90 Intermediate professional training or the equivalent 5.55 4.75 5.81 9.19 10.80 8.83 9.29 7.23 9.82 6.00 5.91 6.02 1.61 2.62 1.07 1.25 1.59 0.89 Advanced professional training or the equivalent 2.97 3.93 2.67 7.70 11.02 6.95 5.42 6.93 5.04 2.62 4.97 2.08 1.16 1.38 1.05 0.65 1.28 .. University studies or the equivalent 8.76 10.18 8.31 9.71 18.11 7.82 13.50 18.80 12.16 9.23 10.63 8.91 4.72 6.32 3.87 3.14 4.46 1.77 Notes: 1) The data corresponding to cells with fewer than 5 thousand persons must be viewed with caution, because it may be affected by large sampling errors. Source: National Statistics Institute