Familial and Genetic Influences on the Common Pediatric Primary Pain Disorders: A Twin Family Study

Area of Science:

• Pediatric Pain Research
• Behavioral Genetics
• Epidemiology

Background:

• Childhood primary pain disorders are common but rarely studied together.
• Genetic factors are suspected to play a role in these conditions.
• Previous research has not comprehensively assessed the genetic contribution to multiple pain types in children.

Purpose of the Study:

• To collectively investigate the prevalence of primary pain disorders in childhood.
• To assess the contribution of additive genetic influences on these pain conditions.
• To examine familial aggregation and genetic underpinnings of pediatric pain.

Main Methods:

• Surveys were distributed to 3909 Australian twin families.
• Assessed lifetime prevalence of growing pains, migraine, headache, recurrent abdominal pain, low back pain, and persistent pain.
• Utilized twin pair correlations (monozygotic vs. dizygotic) and logistic regression to analyze genetic influences and familial relationships.

Main Results:

• Twin analyses of 1016 families showed significant additive genetic effects for growing pains, migraine, and recurrent abdominal pain.
• Genetic influences were not conclusively demonstrated over shared environmental factors for headache, low back pain, and persistent pain.
• Regression analyses indicated the strongest genetic support for growing pains and migraine.

Conclusions:

• Additive genetic effects play a significant role in specific childhood pain disorders.
• Growing pains and migraine in children appear to have a notable genetic basis.
• These findings suggest common genetic causal influences underlying various pediatric pain conditions.