Several argue against extreme versions of the social model, contending that an adequate conceptualization of disability requires a recognition of impairments as an objective basis for classification, to distinguish disability discrimination from other types of discrimination (Bickenbach, 1993).
At the same time, defining "disability" solely in terms of social responses like stigmatization and exclusion does not distinguish disability from race or sex (Bickenbach, 1993)—a result that some disability scholars might welcome, but that begs, or obscures, an important question.
Second, it was also difficult to distinguish disabilities from birth and those which were a result of occupational hazards and/or a result of advancement in age, though it was clear that increment in age led to a significant increase in the prevalence of disability among older persons.
5 This definition recognizes frailty as a distinct clinical entity distinguished from disability, as measured by impairment in activities of daily living (ADL) and comorbidity defined by two or more diseases; two other prevalent conditions in older adults.
The challenge of distinguishing "disability" from other concepts, without taking a simplistic or reductive view of it, has been taken up by various specialized definitions.
Entrenchment of the Medical Model of Disability Disability theorists have distinguished between the medical and the social model of disability.
Essentially, the occurrence of self-injurious behaviour distinguishes classic patients from variants, and clinically apparent motor disability distinguishes the variants into those with and without neurological impairment.
When Mrs. Taylor's son was born in the 1960s, the system did not always distinguish between cognitive disability and mental illness.
In addition, the FI does not attempt to distinguish frailty from disability or comorbidity.
Five disability types were distinguished in the analyses: physical (long-standing physical condition and long-standing illness), sensory (deafness or severe hearing impairment and blindness or partial sightedness), mental, learning disability, and having a combination of two or more of these.
