Scoliosis epidemiology and demographics

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Prevalance

Scoliotic curves greater than 10° affect 2-3% of the population of the United States. Curves greater than 20° affect about 40 in 100,000 people. Curves convex to the right are more common than those to the left, and single or 'C' curves are slightly more common than double or 'S' curve patterns. Males are more likely to have infantile or juvenile scoliosis, but there is a high female predominance of adolescent scoliosis. Young males are seven times more likely than young females to develop a significant, progressive curvature. Females are nine times more likely to require treatment than males as they tend to have larger, more progressive curves.

Gender

• The prevalence of curves less than 20° is about equal in males and females.
• Males are more likely to have infantile or juvenile scoliosis, but there is a high female predominance of adolescent scoliosis.
• Young males are seven times more likely than young females to develop a significant, progressive curvature.
• Females are nine times more likely to require treatment than males as they tend to have larger, more progressive curves.

Epidemiology and Demographics

Incidence

• The incidence/prevalence of [disease name] is approximately [number range] per 100,000 individuals worldwide.
• In [year], the incidence/prevalence of [disease name] was estimated to be [number range] cases per 100,000 individuals worldwide.

Prevalence

• The incidence/prevalence of [disease name] is approximately [number range] per 100,000 individuals worldwide.
• In [year], the incidence/prevalence of [disease name] was estimated to be [number range] cases per 100,000 individuals worldwide.
• The prevalence of [disease/malignancy] is estimated to be [number] cases annually.

Case-fatality rate/Mortality rate

• In [year], the incidence of [disease name] is approximately [number range] per 100,000 individuals with a case-fatality rate/mortality rate of [number range]%.
• The case-fatality rate/mortality rate of [disease name] is approximately [number range].

Age

• Patients of all age groups may develop [disease name].
• The incidence of [disease name] increases with age; the median age at diagnosis is [#] years.
• [Disease name] commonly affects individuals younger than/older than [number of years] years of age.
• [Chronic disease name] is usually first diagnosed among [age group].
• [Acute disease name] commonly affects [age group].

Race

• There is no racial predilection to [disease name].
• [Disease name] usually affects individuals of the [race 1] race. [Race 2] individuals are less likely to develop [disease name].

Gender

• [Disease name] affects men and women equally.
• [Gender 1] are more commonly affected by [disease name] than [gender 2]. The [gender 1] to [gender 2] ratio is approximately [number > 1] to 1.

Region

• The majority of [disease name] cases are reported in [geographical region].

• [Disease name] is a common/rare disease that tends to affect [patient population 1] and [patient population 2].