{"id":6620,"date":"2016-09-20T00:00:00","date_gmt":"2016-09-20T04:00:00","guid":{"rendered":"https:\/\/icesontario.wpengine.com\/journal-articles\/motor-vehicle-crashes-during-pregnancy-and-cerebral-palsy-during-infancy-a-longitudinal-cohort-analysis\/"},"modified":"2023-06-14T20:07:38","modified_gmt":"2023-06-15T00:07:38","slug":"motor-vehicle-crashes-during-pregnancy-and-cerebral-palsy-during-infancy-a-longitudinal-cohort-analysis","status":"publish","type":"journal_article","link":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/motor-vehicle-crashes-during-pregnancy-and-cerebral-palsy-during-infancy-a-longitudinal-cohort-analysis\/","title":{"rendered":"Motor vehicle crashes during pregnancy and cerebral palsy during infancy: a longitudinal cohort analysis"},"content":{"rendered":"

Objectives<\/strong> — To assess the incidence of cerebral palsy among children born to mothers who had their pregnancy complicated by a motor vehicle crash.<\/p>\n

Design<\/strong> — Retrospective longitudinal cohort analysis of children born from 1 April 2002 to 31 March 2012 in Ontario, Canada.<\/p>\n

Participants<\/strong> — Cases defined as pregnancies complicated by a motor vehicle crash and controls as remaining pregnancies with no crash.<\/p>\n

Main outcome<\/strong> — Subsequent diagnosis of cerebral palsy by age 3 years.<\/p>\n

Results<\/strong> — A total of 1 325 660 newborns were analysed, of whom 7933 were involved in a motor vehicle crash during pregnancy. A total of 2328 were subsequently diagnosed with cerebral palsy, equal to an absolute risk of 1.8 per 1000 newborns. For the entire cohort, motor vehicle crashes correlated with a 29% increased risk of subsequent cerebral palsy that was not statistically significant (95% CI −16 to +110, p=0.274). The increased risk was only significant for those with preterm birth who showed an 89% increased risk of subsequent cerebral palsy associated with a motor vehicle crash (95% CI +7 to +266, p=0.037). No significant increase was apparent for those with a term delivery (95% CI −62 to +79, p=0.510). A propensity score-matched analysis of preterm births (n=4384) yielded a 138% increased relative risk of cerebral palsy associated with a motor vehicle crash (95% CI +27 to +349, p=0.007), equal to an absolute increase of about 10.9 additional cases per 1000 newborns (18.2 vs 7.3, p=0.010).<\/p>\n

Conclusions<\/strong> — Motor vehicle crashes during pregnancy may be associated with an increased risk of cerebral palsy among the subgroup of cases with preterm birth. The increase highlights a specific role for traffic safety advice in prenatal care.<\/p>\n","protected":false},"excerpt":{"rendered":"

Objectives — To assess the incidence of cerebral palsy among children born to mothers who had their pregnancy complicated by a motor vehicle crash. Design — Retrospective longitudinal cohort analysis of children born from 1 April 2002 to 31 March 2012 in Ontario, Canada. Participants — Cases defined as pregnancies complicated by a motor vehicle […]<\/p>\n","protected":false},"template":"","migration-helper-automated":[],"migration-manual":[],"topic":[55,26,45],"migration-helper-qa-sample-set":[],"class_list":["post-6620","journal_article","type-journal_article","status-publish","hentry","topic-injuries-and-accidents","topic-maternity-and-neonatal-care","topic-reproductive-medicine"],"acf":{"citation":"Redelmeier DA, Naqib F, Thiruchelvam D, Barrett JF. BMJ Open.<\/em> 2016; 6:e011972.","source_url":"http:\/\/bmjopen.bmj.com\/content\/6\/9\/e011972.full","ices_scientist":[1337],"site":[6733],"research_program":[],"news_release":[7639],"journal_article":[],"atlas":[],"research_report":[],"infographic":[],"video":[],"downloads":null,"links":null,"sitecore_item_id":"5402A557-2E71-4A76-8D27-DFE87958897E","sitecore_item_name":"Motor-vehicle-crashes-during-pregnancy-and-cerebral-palsy-during-infancy","sitecore_field_values":"{\n \"__Valid from\": \"20161208T142016\",\n \"Title\": \"Motor vehicle crashes during pregnancy and cerebral palsy during infancy: a longitudinal cohort analysis\",\n \"Short title\": null,\n \"Summary\": \"Motor vehicle crashes during pregnancy may be associated with an increased risk of cerebral palsy.\",\n \"Citation\": \"

Redelmeier DA, Naqib F, Thiruchelvam D, Barrett JF. BMJ Open.<\/em> 2016; 6:e011972.<\/p>\",\n \"Abstract\": \"

Objectives<\/strong> — To assess the incidence of cerebral palsy among children born to mothers who had their pregnancy complicated by a motor vehicle crash.<\/p>rn

Design<\/strong> — Retrospective longitudinal cohort analysis of children born from 1 April 2002 to 31 March 2012 in Ontario, Canada.<\/p>rn

Participants<\/strong> — Cases defined as pregnancies complicated by a motor vehicle crash and controls as remaining pregnancies with no crash.<\/p>rn

Main outcome<\/strong> — Subsequent diagnosis of cerebral palsy by age 3 years.<\/p>rn

Results<\/strong> — A total of 1 325 660 newborns were analysed, of whom 7933 were involved in a motor vehicle crash during pregnancy. A total of 2328 were subsequently diagnosed with cerebral palsy, equal to an absolute risk of 1.8 per 1000 newborns. For the entire cohort, motor vehicle crashes correlated with a 29% increased risk of subsequent cerebral palsy that was not statistically significant (95% CI −16 to +110, p=0.274). The increased risk was only significant for those with preterm birth who showed an 89% increased risk of subsequent cerebral palsy associated with a motor vehicle crash (95% CI +7 to +266, p=0.037). No significant increase was apparent for those with a term delivery (95% CI −62 to +79, p=0.510). A propensity score-matched analysis of preterm births (n=4384) yielded a 138% increased relative risk of cerebral palsy associated with a motor vehicle crash (95% CI +27 to +349, p=0.007), equal to an absolute increase of about 10.9 additional cases per 1000 newborns (18.2 vs 7.3, p=0.010).<\/p>rn

Conclusions<\/strong> — Motor vehicle crashes during pregnancy may be associated with an increased risk of cerebral palsy among the subgroup of cases with preterm birth. The increase highlights a specific role for traffic safety advice in prenatal care.<\/p>rn

View full text<\/a><\/p>\",\n \"Keywords\": \"{64A750FB-B10A-4F31-AE37-3174B040F95A}|{C23CD67A-AE59-4EFC-816C-4F073E0DF586}|{943D2F14-1BF9-4089-B385-55664C739674}|{40AA743D-CE64-465B-8866-5769D036E8EB}|{E86C786D-011F-4280-894D-32554E81838A}\",\n \"Related Products\": \"

News release<\/h2>rn

Traffic crash during pregnancy increases cerebral palsy risk to unborn child<\/a><\/h3>rn

ICES IN THE NEWS<\/h2>rn

Vehicle crashes linked to cerebral palsy risk for children born premature<\/a><\/h3>\",\n \"Research Programs\": \"{5B1AF319-EC9B-4BF0-A9CD-D066ABE49D71}\",\n \"ICES Locations\": \"{4FCAABBA-14A5-42E6-8F33-BC6C2F1D9908}\",\n \"ICES Scientists\": \"{31BBD6A4-EF6F-4859-AEFA-1FDFA8BF8BB5}\",\n \"Posted Date\": \"20160920T000000\",\n \"Show on Publications Landing Page\": \"1\"\n}","previous_url":"https:\/\/www.ices.on.ca\/Publications\/Journal-Articles\/2016\/January\/Motor-vehicle-crashes-during-pregnancy-and-cerebral-palsy-during-infancy"},"yoast_head":"\nICES | Motor vehicle crashes during pregnancy and cerebral palsy during infancy: a longitudinal cohort analysis<\/title>\n<meta name=\"description\" content=\"Objectives — To assess the incidence of cerebral palsy among children born to mothers who had their pregnancy complicated by a motor vehicle crash.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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