Free Health Dissertations - Learning Disability Can Occur Due To Several Different Types Of Causes.
Learning disability can occur due to several different types of causes. Impairments causing learning difficulties can occur before, after or during birth. Before birth reasons can be congenital and include Down syndrome, Turner syndrome, Hurler syndrome or Fragile X syndrome. Oxygen deprivation during birth and postnatal illnesses, brain injury or meningitis can lead to learning disabilities and impaired cognitive development. Environmental factors leading to learning disabilities can include infections, trauma, drugs or social deprivation and neglect (Watson, 2003). As we have already mentioned particular types of learning disabilities are associated with particular kinds of manifestations and specific learning characteristics.
LO.2 - Estimate the prevalence of learning disabilities and appreciate the impact that this may have on professional health care practice.
The incidence and prevalence of learning disability is difficult to determine as the only manifestations of learning disability that can be detected at birth are clear syndromes like Down syndrome and the majority of infants with learning disabilities go undetected till much later. Delays in children’s cognitive development help ascertain whether they have learning disabilities. Prevalence of a disease or a general condition is the estimation of the number of people affected as a proportion to the general population. If IQ is used as an indicator of learning disability, then many people with learning disabilities go unaccounted for. Administrative prevalence of any such condition refers to the number of people that are provided with some form of service from caring agencies. The general consensus is that the overall prevalence of moderate and severe learning difficulties are 3-4 people per 1000 in the general population (DoH, 1992). The prevalence of severe to moderate disability has been recorded at 3.7 per 1000 population whereas the prevalence of mild learning disability seems to affect 20-30 per 1000 of the general population. Further it has been observed that among 3-4 persons in 1000 within UK suffering with learning disabilities nearly 30% report severe or profound learning problems. Within the group of individuals suffering from severe learning difficulties most also suffer from multiple physical and sensory impairments as also behavioral difficulties. These individuals require lifelong support to maintain themselves and to achieve a level of lifestyle. Emerson et al (2001), have suggested that within UK there are some 230,000-350,000 persons with severe learning disabilities, and around 580,000-1,750,000 persons with mild learning disabilities. They also suggest in their study that there are differences in male and female prevalence rates and incidence of disabilities with males showing higher prevalence than females.
Enable et al. (2003) have suggested that the number of people with learning disabilities has increased by 1.
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