Is there evidence for aetiologically distinct subgroups of idiopathic congenital talipes equinovarus? A case-only study and pedigree analysis.
Idiopathic congenital talipes equinovarus (CTEV) is a common developmental foot disorder, the aetiology of which remains largely unknown. Some aspects of the epidemiology suggest the possibility of aetiologically distinct subgroups. Previous studies consider CTEV as a homogenous entity, which may co...
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ftrobertguniv:oai:rgu-repository.worktribe.com:819893 2024-05-19T07:46:47+00:00 Is there evidence for aetiologically distinct subgroups of idiopathic congenital talipes equinovarus? A case-only study and pedigree analysis. Cardy, Amanda H. Sharp, Linda Torrance, Nicola Hennekam, Raoul C. Miedzybrodzka, Zosia 2011-04-20 https://doi.org/10.1371/journal.pone.0017895 https://rgu-repository.worktribe.com/file/819893/1/CARDY%202011%20Is%20there%20evidence%20for https://rgu-repository.worktribe.com/output/819893 unknown Public Library of Science https://rgu-repository.worktribe.com/output/819893 doi:https://doi.org/10.1371/journal.pone.0017895 https://rgu-repository.worktribe.com/file/819893/1/CARDY%202011%20Is%20there%20evidence%20for 10.1371/journal.pone.0017895 openAccess https://creativecommons.org/licenses/by/4.0/ Congenital talipes equinovarus (clubfoot) Journal Article publishedVersion 2011 ftrobertguniv https://doi.org/10.1371/journal.pone.0017895 2024-04-30T23:31:13Z Idiopathic congenital talipes equinovarus (CTEV) is a common developmental foot disorder, the aetiology of which remains largely unknown. Some aspects of the epidemiology suggest the possibility of aetiologically distinct subgroups. Previous studies consider CTEV as a homogenous entity, which may conceal risk factors in particular subgroups. We investigate evidence for aetiologically distinct subgroups of CTEV. Parents of 785 probands completed a postal questionnaire. Family pedigrees were compiled by telephone. Case-only analysis was used to investigate interactions between risk factors and sex of the proband, CTEV laterality and CTEV family history. The male:female ratio was 2.3:1, 58% of probands were affected bilaterally and 11% had a first-second degree family history. There were modest interactions between family history and twin births (multivariate case - only odds ratio [ORca]=3.87, 95%CI 1.19–12.62); family history and maternal use of folic acid supplements in early pregnancy (ORca=0.62, 95%CI 0.38–1.01); and between sex of the proband and maternal alcohol consumption during pregnancy (female, positive history and alcohol consumed: ORca=0.33, 95%CI 0.12–0.89). Previous reports of an interaction between maternal smoking and family history were not confirmed. Relatives of female probands were affected more often than relatives of male probands. These results provide tentative evidence for aetiologically distinct CTEV subgroups. They support the "Carter effect", suggesting CTEV develops though a multifactorial threshold model with females requiring a higher risk factor "load", and suggest areas where future aetiological investigation might focus. Large multi-centre studies are needed to further advance understanding of this common condition. Article in Journal/Newspaper Orca OpenAIR@RGU (Robert Gordon University, Aberdeen) PLoS ONE 6 4 e17895 |
institution |
Open Polar |
collection |
OpenAIR@RGU (Robert Gordon University, Aberdeen) |
op_collection_id |
ftrobertguniv |
language |
unknown |
topic |
Congenital talipes equinovarus (clubfoot) |
spellingShingle |
Congenital talipes equinovarus (clubfoot) Cardy, Amanda H. Sharp, Linda Torrance, Nicola Hennekam, Raoul C. Miedzybrodzka, Zosia Is there evidence for aetiologically distinct subgroups of idiopathic congenital talipes equinovarus? A case-only study and pedigree analysis. |
topic_facet |
Congenital talipes equinovarus (clubfoot) |
description |
Idiopathic congenital talipes equinovarus (CTEV) is a common developmental foot disorder, the aetiology of which remains largely unknown. Some aspects of the epidemiology suggest the possibility of aetiologically distinct subgroups. Previous studies consider CTEV as a homogenous entity, which may conceal risk factors in particular subgroups. We investigate evidence for aetiologically distinct subgroups of CTEV. Parents of 785 probands completed a postal questionnaire. Family pedigrees were compiled by telephone. Case-only analysis was used to investigate interactions between risk factors and sex of the proband, CTEV laterality and CTEV family history. The male:female ratio was 2.3:1, 58% of probands were affected bilaterally and 11% had a first-second degree family history. There were modest interactions between family history and twin births (multivariate case - only odds ratio [ORca]=3.87, 95%CI 1.19–12.62); family history and maternal use of folic acid supplements in early pregnancy (ORca=0.62, 95%CI 0.38–1.01); and between sex of the proband and maternal alcohol consumption during pregnancy (female, positive history and alcohol consumed: ORca=0.33, 95%CI 0.12–0.89). Previous reports of an interaction between maternal smoking and family history were not confirmed. Relatives of female probands were affected more often than relatives of male probands. These results provide tentative evidence for aetiologically distinct CTEV subgroups. They support the "Carter effect", suggesting CTEV develops though a multifactorial threshold model with females requiring a higher risk factor "load", and suggest areas where future aetiological investigation might focus. Large multi-centre studies are needed to further advance understanding of this common condition. |
format |
Article in Journal/Newspaper |
author |
Cardy, Amanda H. Sharp, Linda Torrance, Nicola Hennekam, Raoul C. Miedzybrodzka, Zosia |
author_facet |
Cardy, Amanda H. Sharp, Linda Torrance, Nicola Hennekam, Raoul C. Miedzybrodzka, Zosia |
author_sort |
Cardy, Amanda H. |
title |
Is there evidence for aetiologically distinct subgroups of idiopathic congenital talipes equinovarus? A case-only study and pedigree analysis. |
title_short |
Is there evidence for aetiologically distinct subgroups of idiopathic congenital talipes equinovarus? A case-only study and pedigree analysis. |
title_full |
Is there evidence for aetiologically distinct subgroups of idiopathic congenital talipes equinovarus? A case-only study and pedigree analysis. |
title_fullStr |
Is there evidence for aetiologically distinct subgroups of idiopathic congenital talipes equinovarus? A case-only study and pedigree analysis. |
title_full_unstemmed |
Is there evidence for aetiologically distinct subgroups of idiopathic congenital talipes equinovarus? A case-only study and pedigree analysis. |
title_sort |
is there evidence for aetiologically distinct subgroups of idiopathic congenital talipes equinovarus? a case-only study and pedigree analysis. |
publisher |
Public Library of Science |
publishDate |
2011 |
url |
https://doi.org/10.1371/journal.pone.0017895 https://rgu-repository.worktribe.com/file/819893/1/CARDY%202011%20Is%20there%20evidence%20for https://rgu-repository.worktribe.com/output/819893 |
genre |
Orca |
genre_facet |
Orca |
op_relation |
https://rgu-repository.worktribe.com/output/819893 doi:https://doi.org/10.1371/journal.pone.0017895 https://rgu-repository.worktribe.com/file/819893/1/CARDY%202011%20Is%20there%20evidence%20for 10.1371/journal.pone.0017895 |
op_rights |
openAccess https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1371/journal.pone.0017895 |
container_title |
PLoS ONE |
container_volume |
6 |
container_issue |
4 |
container_start_page |
e17895 |
_version_ |
1799487021656309760 |