Disability, Independence and Dependency Situations Survey Disabilities, Impairments and State of Health. National results: Absolute figures Population with hearing impairments, who use sign language, by age and sex. Units: thousands of persons 6 years old and over Both sexes Males Females Total 13.3 7.0 6.3 6 to 64 years old 11.6 6.1 5.5 65 to 79 years old 1.3 0.8 0.5 80 years old and over 0.4 0.0 0.4 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