Abstract：
BACKGROUND:An accurate estimate of preconception weight is necessary for providing a gestational weight gain range based on the Institute of Medicine's guidelines; however, an accurate and proximal preconception weight is not available for most women. We examined the validity of first trimester weights for estimating preconception body mass index category. METHODS:Under identical measurement conditions, preconception weight and two first trimester weights (i.e., 4-10 and 12 weeks gestation) were obtained (n = 43). RESULTS:The 4-10 week and the 12 week weight correctly classified 95 and 91% women, respectively. Mean weight changes were relatively small overall (M = 0.74 ± 1.99 kg at 4-10 weeks and M = 1.02 ± 2.46 at 12 weeks). There was a significant difference in mean weight gain by body mass index category at 4-10 weeks (-0.09 ± 1.86 kg for normal weight participants vs. 1.61 + 1.76 kg for overweight/obese participants, p = 0.01), but not at 12 weeks (0.53 ± 2.29 kg for normal weight participants vs. 1.54 ± 2.58 kg for overweight/obese participants). CONCLUSIONS:Assigning gestational weight gain guidelines based on an early first trimester weight resulted in 5-9% of women being misclassified depending on the gestational week the weight was obtained. Thus, most women are correctly classified based on a first trimester weight, particularly an early first trimester weight, although it is possible that modeling strategies could be developed to further improve estimates of preconception body mass index category. TRIAL REGISTRATION:Clinicaltrials.gov # NCT01131117 , registered May 25, 2010.
journal_name
BMC Pregnancy Childbirthjournal_title
BMC pregnancy and childbirthauthors
Krukowski RA,West DS,DiCarlo M,Shankar K,Cleves MA,Saylors ME,Andres Adoi
10.1186/s12884-016-1159-6subject
Has Abstractpub_date
2016-11-21 00:00:00pages
357issue
1issn
1471-2393pii
10.1186/s12884-016-1159-6journal_volume
16pub_type
杂志文章abstract：BACKGROUND:In recent decades we have observed a remarkable increase in the rate of caesarean section (CS) in both developed and developing countries, especially in China. However, the real reasons for this phenomenon are uncertain. Notably, the number of women requesting elective CS without accepted valid medical indic...
journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章,多中心研究
doi：10.1186/s12884-014-0410-2
更新日期：2014-12-12 00:00:00
abstract：BACKGROUND:This study aimed at determining the predictive value of human chorionic gonadotropin and progesterone levels on pregnancy outcomes in patients receiving in vitro fertilization due to fallopian tube associated infertility. METHODS:We retrospectively analyzed the clinical data of 854 cycles due to fallopian t...
journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
doi：10.1186/s12884-020-03495-6
更新日期：2021-01-06 00:00:00
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journal_title：BMC pregnancy and childbirth
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doi：10.1186/s12884-020-03051-2
更新日期：2020-06-15 00:00:00
abstract：:BACKGROUND: This abandoned randomised controlled trial assessed the effects of hospitalisation from 24 to 30 weeks gestation for women with a triplet pregnancy on the risk of preterm birth. METHODS: Women with a triplet pregnancy and no other condition necessitating hospital admission were approached for participation...
journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
doi：10.1186/1471-2393-5-8
更新日期：2005-04-04 00:00:00
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journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
doi：10.1186/1471-2393-14-205
更新日期：2014-06-13 00:00:00
abstract：BACKGROUND:Use of skilled health provider (SBA) during and after childbirth has been reported to reduce maternal and newborn deaths; and is one of the key indicators monitored in Sustainable Development Goals (SDGs). Progress, levels and factors influencing utilization of SBA differ within and between countries. In Tan...
journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
doi：10.1186/s12884-020-03110-8
更新日期：2020-07-25 00:00:00
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journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
doi：10.1186/s12884-020-2726-4
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abstract：BACKGROUND:Much attention has been given to the adequacy of prenatal care use in promoting healthy outcomes for women and their infants. Adequacy of use takes into account the timing of initiation of prenatal care and the number of visits. However, there is emerging evidence that the quality of prenatal care may be mor...
journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
doi：10.1186/1471-2393-12-29
更新日期：2012-04-13 00:00:00
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journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
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abstract：BACKGROUND:Limited information is available concerning investigating the separate effect of teenage childbirth on medical issues in the antenatal and perinatal periods. Therefore, this study aimed to assess medical problems in antenatal and perinatal periods among early youth, adolescent and young adult mothers in Taiw...
journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
doi：10.1186/1471-2393-14-260
更新日期：2014-08-04 00:00:00
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journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章,meta分析
doi：10.1186/s12884-019-2689-5
更新日期：2019-12-30 00:00:00
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journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
doi：10.1186/s12884-018-1925-8
更新日期：2018-07-04 00:00:00
abstract：BACKGROUND:Pregnancy is a period in the life of women that is often associated with decreased daily physical activity and/or exercise. However, maintaining adequate levels of daily physical activity during pregnancy is important for mother and child. Studies suggest that moderate daily physical activity and exercise du...
journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章,随机对照试验
doi：10.1186/1471-2393-9-1
更新日期：2009-01-05 00:00:00
abstract：BACKGROUND:Demand-side financing, where funds for specific services are channelled through, or to, prospective users, is now employed in health and education sectors in many low- and middle-income countries. This systematic review aimed to critically examine the evidence on application of this approach to promote mater...
journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章,评审
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更新日期：2014-01-17 00:00:00
abstract：BACKGROUND:The aim of the qualitative study reported here was to: 1) explain the observed clustering of postnatal depressive symptoms in South Western Sydney; and 2) identify group-level mechanisms that would add to our understanding of the social determinants of maternal depression. METHODS:Critical realism provided ...
journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
doi：10.1186/1471-2393-14-47
更新日期：2014-01-24 00:00:00
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journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章,评审
doi：10.1186/s12884-019-2539-5
更新日期：2019-11-06 00:00:00
abstract：BACKGROUND:Neonatal infections caused by unsafe umbilical cord practices account for the majority of neonatal deaths in Nigeria. We examined the trends in umbilical cord care practices between 2012 and 2015 that coincided with the introduction of chlorhexidine digluconate 7.1% gel in Bauchi and Sokoto States. METHODS:...
journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
doi：10.1186/s12884-017-1551-x
更新日期：2017-11-09 00:00:00
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journal_title：BMC pregnancy and childbirth
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doi：10.1186/s12884-016-1006-9
更新日期：2016-08-08 00:00:00
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doi：10.1186/1471-2393-13-127
更新日期：2013-06-07 00:00:00
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pub_type： 杂志文章,评审
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更新日期：2010-02-09 00:00:00
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journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
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更新日期：2021-01-28 00:00:00
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journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
doi：10.1186/s12884-018-2009-5
更新日期：2018-09-15 00:00:00
abstract：BACKGROUND:Vitamin D insufficiency may be associated with depressive symptoms in non-pregnant adults. We performed this study to evaluate whether low maternal vitamin D levels are associated with depressive symptoms in pregnancy. METHODS:This study was a secondary analysis of a randomized trial designed to assess whet...
journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章,随机对照试验
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更新日期：2016-08-03 00:00:00
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pub_type： 杂志文章
doi：10.1186/s12884-019-2459-4
更新日期：2019-08-27 00:00:00
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journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章,多中心研究
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更新日期：2018-01-15 00:00:00
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journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
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更新日期：2013-07-09 00:00:00
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journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
doi：10.1186/s12884-020-02919-7
更新日期：2020-05-29 00:00:00
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pub_type： 杂志文章
doi：10.1186/s12884-018-1882-2
更新日期：2018-06-18 00:00:00
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journal_title：BMC pregnancy and childbirth
pub_type： 杂志文章
doi：10.1186/s12884-020-02910-2
更新日期：2020-04-28 00:00:00
