dc.contributor.author | Myklestad, Kirsti | |
dc.contributor.author | Vatten, Lars Johan | |
dc.contributor.author | Magnussen, Elisabeth Balstad | |
dc.contributor.author | Salvesen, Kjell Å | |
dc.contributor.author | Romundstad, Pål Richard | |
dc.date.accessioned | 2015-09-22T11:00:34Z | |
dc.date.accessioned | 2016-05-10T08:24:40Z | |
dc.date.available | 2015-09-22T11:00:34Z | |
dc.date.available | 2016-05-10T08:24:40Z | |
dc.date.issued | 2013-02-05 | |
dc.identifier.citation | BMC Pregnancy and Childbirth 2013, 13 | nb_NO |
dc.identifier.issn | 1471-2393 | |
dc.identifier.uri | http://hdl.handle.net/11250/2388887 | |
dc.description.abstract | Background: The objective of this study was to examine the association of maternal and paternal height with
pregnancy length, and with the risk of pre- and post-term birth. In addition we aimed to study whether
cardiovascular risk factors could explain possible associations.
Methods: Parents who participated in the Nord-Trøndelag Health Study (HUNT 2; 1995–1997) were linked to
offspring data from the Medical Birth Registry of Norway (1997–2005).
The main analyses included 3497 women who had delivered 5010 children, and 2005 men who had fathered 2798
pregnancies. All births took place after parental participation in HUNT 2. Linear regression was used to estimate
crude and adjusted differences in pregnancy length according to parental heights. Logistic regression was used to
estimate crude and adjusted associations of parental heights with the risk of pre- and post-term births.
Results: We found a gradual increase in pregnancy length by increasing maternal height, and the association was
essentially unchanged after adjustment for maternal cardiovascular risk factors, parental age, offspring sex, parity,
and socioeconomic measures. When estimated date of delivery was based on ultrasound, the difference between
mothers in the lower height quintile (<163 cm cm) and mothers in the upper height quintile (≥ 173 cm) was
4.3 days, and when estimated date of delivery was based on last menstrual period (LMP), the difference was
2.8 days. Shorter women (< 163 cm) had lower risk of post-term births, and when estimated date of delivery was
based on ultrasound they also had higher risk of pre-term births. Paternal height was not associated with
pregnancy length, or with the risks of pre- and post-term births.
Conclusions: Women with shorter stature had shorter pregnancy length and lower risk of post-term births than
taller women, and when EDD was based on ultrasound, they also had higher risk of preterm births. The effect of
maternal height was generally stronger when pregnancy length was based on second trimester ultrasound
compared to last menstrual period. The association of maternal height with pregnancy length could not be
explained by cardiovascular risk factors. Paternal height was neither associated with pregnancy length nor with the
risk of pre- and post-term birth. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | BioMed Central | nb_NO |
dc.rights | Navngivelse 3.0 Norge | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/no/ | * |
dc.title | Do parental heights influence pregnancy length?: a population-based prospective study, HUNT 2 | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.date.updated | 2015-09-22T11:00:34Z | |
dc.source.volume | 13 | nb_NO |
dc.source.journal | BMC Pregnancy and Childbirth | nb_NO |
dc.source.issue | 33 | nb_NO |
dc.identifier.doi | 10.1186/1471-2393-13-33 | |
dc.identifier.cristin | 1030495 | |
dc.description.localcode | © Myklestad et al.; licensee BioMed Central Ltd. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | nb_NO |