The heritability of doctor-diagnosed traumatic and degenerative meniscus tears. Magnusson, K., Turkiewicz, A., Snoeker, B., Hughes, V., & Englund, M. Osteoarthritis and Cartilage, March, 2021. Publisher: Elsevier
The heritability of doctor-diagnosed traumatic and degenerative meniscus tears [link]Paper  doi  abstract   bibtex   
\textlessh2\textgreaterSummary\textless/h2\textgreater\textlessh3\textgreaterObjective\textless/h3\textgreater\textlessp\textgreaterTo estimate the genetic contribution to traumatic and degenerative meniscus tears for men and women across the lifespan.\textless/p\textgreater\textlessh3\textgreaterMethods\textless/h3\textgreater\textlessp\textgreaterWe linked the Swedish Twin Register with individual-level national healthcare data to form a 30-year, population-wide, longitudinal twin cohort. To study genetic contribution to meniscus tears, we estimated the heritability and familial risk using incident traumatic and degenerative tear diagnostic codes in a cohort of 88,414 monozygotic and dizygotic twin-pairs, aged ≥17 years.\textless/p\textgreater\textlessh3\textgreaterResults\textless/h3\textgreater\textlessp\textgreaterDuring follow-up, 3,372 (3.8%) of 88,414 twins were diagnosed with a traumatic or degenerative meniscus tear\textbf. The heritability was 0.39 (95% CI = 0.32–0.47) for men and 0.43 (95% CI = 0.36–0.50) for women, and did not vary by age. Environmental factors that were unique to each twin in a pair explained a greater proportion of the variance than genetic factors, both for men (0.61, 95% CI = 0.53–0.68) and women (0.57, 95% CI = 0.50–0.64). Separate analyses of traumatic vs degenerative meniscus tears yielded similar results.\textless/p\textgreater\textlessh3\textgreaterConclusion\textless/h3\textgreater\textlessp\textgreaterFor the first time, we have estimated the genetic contribution to doctor-diagnosed meniscus tears using a twin study design. We found a relatively low to modest heritability for meniscus tears (∼40%). The heritability was also fairly stable over the lifespan, and equal in both men and women. Our findings suggest that environmental risk factors are a more important contributor to both traumatic and degenerative doctor-diagnosed meniscus tears than genetic factors.\textless/p\textgreater
@article{magnusson_heritability_2021,
	title = {The heritability of doctor-diagnosed traumatic and degenerative meniscus tears},
	volume = {In Press},
	issn = {1063-4584, 1522-9653},
	url = {https://www.oarsijournal.com/article/S1063-4584(21)00635-X/abstract},
	doi = {10.1016/j.joca.2021.03.005},
	abstract = {{\textless}h2{\textgreater}Summary{\textless}/h2{\textgreater}{\textless}h3{\textgreater}Objective{\textless}/h3{\textgreater}{\textless}p{\textgreater}To estimate the genetic contribution to traumatic and degenerative meniscus tears for men and women across the lifespan.{\textless}/p{\textgreater}{\textless}h3{\textgreater}Methods{\textless}/h3{\textgreater}{\textless}p{\textgreater}We linked the Swedish Twin Register with individual-level national healthcare data to form a 30-year, population-wide, longitudinal twin cohort. To study genetic contribution to meniscus tears, we estimated the heritability and familial risk using incident traumatic and degenerative tear diagnostic codes in a cohort of 88,414 monozygotic and dizygotic twin-pairs, aged ≥17 years.{\textless}/p{\textgreater}{\textless}h3{\textgreater}Results{\textless}/h3{\textgreater}{\textless}p{\textgreater}During follow-up, 3,372 (3.8\%) of 88,414 twins were diagnosed with a traumatic or degenerative meniscus tear\textbf{.} The heritability was 0.39 (95\% CI = 0.32–0.47) for men and 0.43 (95\% CI = 0.36–0.50) for women, and did not vary by age. Environmental factors that were unique to each twin in a pair explained a greater proportion of the variance than genetic factors, both for men (0.61, 95\% CI = 0.53–0.68) and women (0.57, 95\% CI = 0.50–0.64). Separate analyses of traumatic vs degenerative meniscus tears yielded similar results.{\textless}/p{\textgreater}{\textless}h3{\textgreater}Conclusion{\textless}/h3{\textgreater}{\textless}p{\textgreater}For the first time, we have estimated the genetic contribution to doctor-diagnosed meniscus tears using a twin study design. We found a relatively low to modest heritability for meniscus tears (∼40\%). The heritability was also fairly stable over the lifespan, and equal in both men and women. Our findings suggest that environmental risk factors are a more important contributor to both traumatic and degenerative doctor-diagnosed meniscus tears than genetic factors.{\textless}/p{\textgreater}},
	language = {English},
	urldate = {2021-04-01},
	journal = {Osteoarthritis and Cartilage},
	author = {Magnusson, K. and Turkiewicz, A. and Snoeker, B. and Hughes, V. and Englund, M.},
	month = mar,
	year = {2021},
	note = {Publisher: Elsevier},
}

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