Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/118412
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Type: Journal article
Title: Implications of vaginal instrumental delivery for children's school achievement: a population-based linked administrative data study
Author: Hsieh, D.
Smithers, L.
Black, M.
Lynch, J.
Dekker, G.
Wilkinson, C.
Stark, M.
Mol, B.
Citation: Australian and New Zealand Journal of Obstetrics and Gynaecology, 2019; 59(5):677-683
Publisher: Royal Australian and New Zealand College of Obstetricians and Gynaecologists
Issue Date: 2019
ISSN: 0004-8666
1479-828X
Statement of
Responsibility: 
David C. Hsieh, Lisa G. Smithers, Mairead Black, John W. Lynch, Gustaff Dekker, Chris Wilkinson, Michael J. Stark, Ben W. Mol
Abstract: BACKGROUND:Vaginal instrumental delivery is a common obstetrical intervention, but its effect on children's later development is not well known. AIMS:To determine if vaginal instrumental delivery is associated with adverse neurodevelopment as measured by school achievement. MATERIAL AND METHODS:We performed a whole-of-population study involving linkage of routinely collected perinatal data with school assessments among children born in South Australia from 1999 to 2008. Participants were singleton children born by forceps (n = 5494), ventouse (n = 6988), or normal delivery (n = 80 803). School achievement was measured through performance on the National Assessment Program in Literacy and Numeracy (NAPLAN), at around eight years of age. This assessment involved five domains and scores were categorised according to performing at or above National Minimum Standards (NMS). Effects of instrumental versus normal vaginal delivery were analysed via augmented inverse probability weighting (AIPW), taking into account a variety of maternal, perinatal and sociodemographic characteristics. RESULTS:In unadjusted analyses, instrumental delivery was not associated with poor NAPLAN scores. AIPW analyses also suggested that instrumental delivery had minimal adverse effect on NAPLAN scores, with the largest difference being lower spelling scores among forceps-delivered children (-0.022 (95% CI -0.0053-0.009)) compared with spontaneous vaginal births. The findings were consistent among exploratory subgroup analyses involving births in the absence of prolonged labour, with APGAR ≥ 9, and among normotensive and non-diabetic mothers. CONCLUSION:In singleton children born at term, instrumental delivery does not have an adverse effect on neurodevelopment as measured by NAPLAN performance at age eight.
Keywords: delivery; forceps; medical record linkage; vacuum
Rights: © 2019 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists
RMID: 0030108231
DOI: 10.1111/ajo.12952
Grant ID: http://purl.org/au-research/grants/nhmrc/1056888
http://purl.org/au-research/grants/nhmrc/1082548
Appears in Collections:Paediatrics publications

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