Scoliosis epidemiology and demographics
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Overview
Prevalance
Scoliotic curves greater than 10° affect 2-3% of the population of the United States.[1] 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.