OBJECTIVE: To assess the relative contribution of genetic and environmental factors to different definitions of spinal pain and consequences of spinal pain. METHODS: The Danish Twin Registry contains detailed survey information on spinal pain and its consequences in twins ages 20-71 years. A classic genetic epidemiologic analysis was performed in order to establish heritability for a number of phenotypes, including location of pain, radiation of pain in the extremities or chest, pain duration, and combinations of pain in >1 spinal area. Consequences included reduced physical activity, sick leave, care seeking, change of work, and disability pension. The analysis included a biometric analysis based on the effect of shared genetic and common environmental factors. Furthermore, a bivariate twin model was fitted to identify genetic and environmental correlations. RESULTS: Altogether, data on 15,328 twin individuals (44% monozygotic and 56% dizygotic) from complete twin pairs were included. Genetic susceptibility explained approximately 38% of lumbar pain, 32% of thoracic pain, and 39% of neck pain. For patterns of pain, estimates were 7% for lumbar/thoracic, 24% for lumbar/cervical, 0% for thoracic/cervical, and 35% for pain in all 3 areas. Moderate to high genetic correlations indicated a common genetic basis for many spinal pain syndromes. In general, heritability was higher for women, and only a minor age effect was seen. CONCLUSION: Heritability estimates for pain in different spinal regions are quite similar and there is a moderate to high genetic correlation between the phenotypes. This may indicate a common genetic basis for a high proportion of spinal pain.
OBJECTIVE: To assess the relative contribution of genetic and environmental factors to different definitions of spinal pain and consequences of spinal pain. METHODS: The Danish Twin Registry contains detailed survey information on spinal pain and its consequences in twins ages 20-71 years. A classic genetic epidemiologic analysis was performed in order to establish heritability for a number of phenotypes, including location of pain, radiation of pain in the extremities or chest, pain duration, and combinations of pain in >1 spinal area. Consequences included reduced physical activity, sick leave, care seeking, change of work, and disability pension. The analysis included a biometric analysis based on the effect of shared genetic and common environmental factors. Furthermore, a bivariate twin model was fitted to identify genetic and environmental correlations. RESULTS: Altogether, data on 15,328 twin individuals (44% monozygotic and 56% dizygotic) from complete twin pairs were included. Genetic susceptibility explained approximately 38% of lumbar pain, 32% of thoracic pain, and 39% of neck pain. For patterns of pain, estimates were 7% for lumbar/thoracic, 24% for lumbar/cervical, 0% for thoracic/cervical, and 35% for pain in all 3 areas. Moderate to high genetic correlations indicated a common genetic basis for many spinal pain syndromes. In general, heritability was higher for women, and only a minor age effect was seen. CONCLUSION: Heritability estimates for pain in different spinal regions are quite similar and there is a moderate to high genetic correlation between the phenotypes. This may indicate a common genetic basis for a high proportion of spinal pain.
Authors: Jonas Winkel Holm; Jan Hartvigsen; Svend Lings; Kirsten Ohm Kyvik Journal: Int Arch Occup Environ Health Date: 2012-03-18 Impact factor: 3.015
Authors: Pradeep Suri; Edward J Boyko; Nicholas L Smith; Jeffrey G Jarvik; Frances M K Williams; Gail P Jarvik; Jack Goldberg Journal: Spine J Date: 2016-10-26 Impact factor: 4.166
Authors: Gregory D Schroeder; Cynthia R LaBella; Marco Mendoza; Erika L Daley; Jason W Savage; Alpesh A Patel; Wellington K Hsu Journal: Eur Spine J Date: 2016-06-13 Impact factor: 3.134