An estimated 1.3 billion people, about 16% of the world's population, live with a significant disability. Disability arises when a long-term impairment meets barriers in the world around a person: steps without a ramp, information that is not available in sign language, Braille or plain language, schools and employers that do not adapt, and attitudes that assume persons with disabilities cannot learn, work or decide for themselves. The consequences add up over a lifetime. Persons with disabilities are less likely to finish school and to have a job, more likely to be poor, and face higher health risks; some die up to 20 years earlier than people without disabilities.
The barriers fall hardest on those who face other disadvantages too. Women with disabilities are less often employed than men with disabilities and are two to four times more likely to experience intimate partner violence than other women. Young people with disabilities are twice as likely as their peers to be neither in work nor in education or training. Living with a disability also costs more, for assistive products, transport, care and health services, so households with a disabled member can be poor even when their income looks adequate. The UN's most recent assessment found that, for persons with disabilities, only five indicators linked to the Sustainable Development Goals appeared to be on track.