Abstract：
BACKGROUND:Previous studies suggest that RhD positive heterozygotes express better health status than RhD positive homozygotes and especially RhD negative subjects. This also applies to pregnant women. According to the Trivers-Willard hypothesis, women in better physical condition should have more sons. AIM:To test the hypothesis that RhD positive heterozygous mothers have a male-skewed sex ratio. STUDY DESIGN:Cross-sectional study. The data was analysed using Chi-Square test for all women, separately for RhD positive and RhD negative women, and separately for primiparous and multiparous women. The effects of maternal weight as a continuous predictor and the RhD phenotype of newborn as a categorical predictor of newborn sex were evaluated by the generalized linear model (GLZ) separately for RhD positive and RhD negative women using binomial distribution and logit link function. OUTCOME MEASURES:Clinical records comprised maternal weight before pregnancy, number of previous deliveries, sex of the newborn, maternal RhD phenotype, and RhD phenotype of the newborn. SUBJECTS:We analysed data from 5655 women who gave birth between 2008 and 2012 in General University Hospital in Prague. RESULTS:Secondary sex ratio was significantly higher (P = 0.028) in RhD positive mothers who had RhD negative newborns, i.e., in heterozygotes (SR = 1.23), than in RhD positive mothers who had RhD positive newborns, i.e., in a mixed population of heterozygotes and homozygotes (SR = 1.00), especially in primiparous women (P = 0.013; SR = 1.37 and 0.99 resp.). CONCLUSION:The sex ratio at birth was significantly higher in RhD positive mothers who had RhD negative newborns than in RhD positive mothers who had RhD positive newborns.
journal_name
Early Hum Devjournal_title
Early human developmentauthors
Kaňková Š,Flegr J,Toman J,Calda Pdoi
10.1016/j.earlhumdev.2019.104864subject
Has Abstractpub_date
2020-01-01 00:00:00pages
104864eissn
0378-3782issn
1872-6232pii
S0378-3782(19)30518-3journal_volume
140pub_type
杂志文章,实务指引abstract：:Interfacility transport is a necessary part of hospital care. Neonates often need to access specialist input at different sites necessitating a reliable transfer process. Services have evolved significantly over the last ten years to meet this need. This followed the recognition that ad hoc arrangements were unreliabl...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2013.09.004
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abstract：:Developmental changes in muscle coordination patterns of normal and abnormal general movements (GMs) are described. GMs were studied simultaneously with video-recording and polymyography (polyEMG). GMs of normal full-term infants gradually lose their neonatally slow and 'writhing' character, to be turned into the eleg...
journal_title：Early human development
pub_type： 杂志文章,评审
doi：10.1016/0378-3782(93)90038-v
更新日期：1993-09-01 00:00:00
abstract：:We measured plasma and erythrocyte vitamin E (VE) and plasma vitamin A (VA) profiles in 48 full-term and 8 preterm pairs of neonates and their mothers at birth and we determined whether there is any relationship between maternal and umbilical cord for the nutrients measured. At the same time, we assessed the influence...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/s0378-3782(98)00070-x
更新日期：1998-12-01 00:00:00
abstract：:We report a breast-fed preterm infant (31 weeks gestation) who developed nutritional zinc deficiency 13 weeks post delivery. Serial samples of his mothers breast milk from early lactation (2 weeks post delivery) contained very low zinc concentrations, although her serum zinc and sweat zinc concentrations were normal. ...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/0378-3782(85)90062-3
更新日期：1985-01-01 00:00:00
abstract：INTRODUCTION:The male-to-female ratio of live births is expressed as the ratio of male births divided by total births (M/F). Males are produced approximately 3% in excess. A large number of factors have been found to influence M/F. Stress and privation reduces M/F. Gender preference (which almost invariably favours mal...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2015.10.013
更新日期：2015-12-01 00:00:00
abstract：BACKGROUND:Somatosensory evoked potentials (SEPs) offer an additional bedside tool for outcome prediction after perinatal asphyxia. AIMS:To assess the reliability of SEPs recorded with bifrontoparietal amplitude-integrated electroencephalography (aEEG) brain monitoring setup for outcome prediction in asphyxiated newbo...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2020.105287
更新日期：2021-02-01 00:00:00
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journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2015.01.005
更新日期：2015-02-01 00:00:00
abstract：BACKGROUND:A reliable and valid assessing tool to detect the problem before the child becomes deviant is very important. AIM:This study aimed to further test the reliability and validity of developmental screening instrument for follow-up of thirty-six months children in Taiwan. Also, the stability and changes in the ...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2009.12.004
更新日期：2010-01-01 00:00:00
abstract：PURPOSE:Maternal nutritional status is one of the most important factors of fetal growth and development. Consequently, the currently increasing prevalence of underweight women worldwide has come in the focus of interest of perinatal medicine. The aim of the study was to assess the effect of low pre-pregnancy body mass...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2012.10.004
更新日期：2013-05-01 00:00:00
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journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2012.10.007
更新日期：2013-05-01 00:00:00
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journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2018.11.006
更新日期：2019-01-01 00:00:00
abstract：:Soluble fibrinogen--fibrin complex levels were found to be significantly higher in plasma samples from pregnant women with babies suffering from intrauterine growth retardation, when compared with levels found in normal pregnancy. As soluble fibrinogen--fibrin complexes are formed following activation of the coagulati...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/0378-3782(78)90006-3
更新日期：1978-07-01 00:00:00
abstract：:The relationship between the traction forces used in 53 clinically indicated vacuum extractions and the incidence and degree of retinal hemorrhages observed in the neonates within 24 hours after birth was examined. A Vacuum Extractor Recorder (Type SF 30, Knick), was used to measure the traction force necessary for de...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/0378-3782(88)90107-7
更新日期：1988-03-01 00:00:00
abstract：BACKGROUND:To date, no study has compared preterm and full term auditory environments. AIM:To define differences in auditory exposure for preterm infants at term equivalent age in the neonatal intensive care unit (NICU) compared to auditory exposure in hospital rooms on a labor and delivery ward after full term birth....
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2019.07.001
更新日期：2019-09-01 00:00:00
abstract：AIM:To compare the order and age of emergence of rolling prone to supine and supine to prone before the introduction of back to sleep guidelines and 20 years after their introduction. METHODS:The original normative data for the Alberta Infant Motor Scale (AIMS) were collected just prior to the introduction of back to ...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2012.10.009
更新日期：2013-05-01 00:00:00
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journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2016.01.002
更新日期：2016-03-01 00:00:00
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journal_title：Early human development
pub_type： 杂志文章,评审
doi：10.1016/S0378-3782(13)70005-7
更新日期：2013-06-01 00:00:00
abstract：BACKGROUND:Intrauterine growth restriction (IUGR) is a fetal condition characterized by growth-rate reduction. Afflicted fetuses tend to display abnormalities in heart rate. OBJECTIVE:To study the differences in the heart-rate variability of low-risk fetuses and IUGR fetuses during different behavioral states. METHOD...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2013.07.002
更新日期：2013-10-01 00:00:00
abstract：BACKGROUND:Preterm infants have immature skin, which contributes to skin problems. Very little is known about postnatal changes in the skin, despite the clinical importance of this issue. AIM:To assess temporal changes in skin water content in preterm infants. STUDY DESIGN:A prospective observational study. SUBJECTS...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2015.05.009
更新日期：2015-09-01 00:00:00
abstract：:Cord blood thyroxine (T4) concentrations were measured in 4,068 infants from 28 wk gestation to term. Each chart was reviewed for the following factors: delivery by cesarean section, prolonged rupture of membranes, neonatal asphyxia, meconium-stained amniotic fluid, maternal diabetes mellitus and twinning. Each neonat...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/0378-3782(78)90031-2
更新日期：1978-09-01 00:00:00
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journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/0378-3782(93)90100-9
更新日期：1993-12-15 00:00:00
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journal_title：Early human development
pub_type： 杂志文章,评审
doi：10.1016/j.earlhumdev.2005.10.011
更新日期：2005-12-01 00:00:00
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journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2020.105254
更新日期：2020-11-12 00:00:00
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journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/0378-3782(86)90008-3
更新日期：1986-04-01 00:00:00
abstract：:Serum albumin levels decrease during pregnancy while the concentration of most other maternal serum proteins of hepatic origin remain stable or increase. In a study of 289 women, most maternal characteristics such as race, age, smoking, a history of previous low birth-weight, infant sex and gestational age at delivery...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/0378-3782(93)90178-w
更新日期：1993-10-01 00:00:00
abstract：:Lipids have physical, chemical, and physiological properties that make them important factors in human nutrition. They form a group of compounds of varied chemical nature that have the common property of being soluble in organic solvents but insoluble in water. This basic property affects their digestion, absorption, ...
journal_title：Early human development
pub_type： 杂志文章,评审
doi：10.1016/s0378-3782(01)00211-0
更新日期：2001-11-01 00:00:00
abstract：OBJECTIVE:In the general framework of relating birthing events to later mental development, this study addresses the hypothesis that uneventful non-vertex delivery is associated with higher intelligence than uneventful vertex delivery. STUDY DESIGN:In the course of a developmental obstetrical survey, data was gathered...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/0378-3782(94)90065-5
更新日期：1994-09-30 00:00:00
abstract：OBJECTIVE:Maternal smoking during pregnancy is associated with a reduction in birth size but very few studies have collated changes in neonatal anthropometry. Our aims were both to assess body composition differences by anthropometry between new-borns from smoking mothers and those from non-smoking mothers, and to show...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2011.07.015
更新日期：2012-03-01 00:00:00
abstract：BACKGROUND:Maternal pre-pregnancy overweight is known to program offspring for adverse health outcomes later in life. AIMS:To investigate how growth patterns of weight, height and BMI from birth to 7years differ according to maternal pre-pregnancy weight (normal weight, overweight and obesity), with specific attention...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2017.06.002
更新日期：2017-10-01 00:00:00
abstract：:Vascular tumours (haemangiomas and malformations) are common tumours of infancy and childhood. They represent a group of mostly benign conditions, which present early, can grow rapidly and be symptomatic or disfiguring. There are various management options, with different cosmetic and functional outcomes. Haemangiomas...
journal_title：Early human development
pub_type： 杂志文章
doi：10.1016/j.earlhumdev.2010.08.017
更新日期：2010-10-01 00:00:00
