Prevalence and Incidence of Back conditions
Prevalance of types of Back conditions:
For details see prevalence of types of Back conditions analysis; summary of available prevalence data:
Back conditions Prevalence: Book Excerpts
Incidence of types of Back conditions:
For details see incidence of types of Back conditions analysis; summary of available incidence by type data:
Prevalence/Incidence of Back conditions: Online Medical Books
16 MEDICAL BOOKS ONLINE!
Review excerpts from medical books online, free, without registration,
for more information about the prevalence and/or incidence of Back conditions.
Scoliosis:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
Scoliosis may be functional, structural, or idiopathic. Functional (postural) scoliosis usually results from a discrepancy in leg lengths rather than from a fixed deformity of the spinal column; it corrects when the patient bends toward the convex side. Structural scoliosis results from a deformity of the vertebral bodies, and it doesn’t correct when the patient bends to the side. Structural scoliosis may be:
❑ congenital: usually related to a congenital defect, such as wedge vertebrae, fused ribs or vertebrae, or hemivertebrae; may result from trauma to zygote or embryo
❑ paralytic or musculoskeletal: develops several months after asymmetrical paralysis of the trunk muscles due to polio, cerebral palsy, or muscular dystrophy
❑ idiopathic (the most common form): may be transmitted as an autosomal dominant or multifactorial trait. This form appears in a previously straight spine during the growing years. Brain stem dysfunction, possibly due to a lesion of the posterior columns or the inner ear, may be the cause.
Idiopathic scoliosis can be classified as infantile, which affects mostly male infants between birth and age 3 and causes left thoracic and right lumbar curves; juvenile, which affects both sexes between ages 4 and 10 and causes varying types of curvature; or adolescent, which generally affects girls between age 10 and achievement of skeletal maturity and causes varying types of curvature.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
Learning Problems:
Learning Problems - epidemiology
(The 5-Minute Pediatric Consult)
Psychiatric comorbidity is frequent, either as a complication of learning problems or as an etiologic factor in their development.
Learning Problems - incidence
Estimated incidence ≥10% in school-aged children:
- Typically not evident until academic demands are placed on affected children.
» READ BOOK EXCERPT ONLINE »
Source: The 5-Minute Pediatric Consult, 2008
Speech Problems:
Speech Problems - epidemiology
(The 5-Minute Pediatric Consult)
Communication disorders are the most common developmental problems in preschool aged children:
- Nearly 20% of 2-year-olds are thought to have delayed onset of speech.
- By age 5, 19% of children are considered to have speech and language disorders—6.4% from speech impairment, 4.6% from speech and language impairment, and 8% from language impairment.
- 50% of mentally retarded children fail to acquire any symbolic communication skills
- The majority of language disorders, up to 85%, are seen in boys.
» READ BOOK EXCERPT ONLINE »
Source: The 5-Minute Pediatric Consult, 2008
About prevalence and incidence statistics:
The term 'prevalence' of Back conditions usually refers to the estimated population
of people who are managing Back conditions at any given time.
The term 'incidence' of Back conditions refers to the annual diagnosis rate,
or the number of new cases of Back conditions diagnosed each year.
Hence, these two statistics types can differ:
a short-lived disease like flu can have high annual incidence but low prevalence,
but a life-long disease like diabetes has a low annual incidence but high prevalence.
For more information see about prevalence and incidence statistics.
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