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Trends in pregnancy and childbirth

This section considers studies regarding all aspects of patterns in reproduction, including trends in birth weight, twinning, stillbirth, congenital anomalies, parenting age, and all other aspects of trends in pregnancy and childbirth.

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  1. Limited evidences were reported about the risk of pre-pregnancy hair dye use or irregular menstruation with abnormal birth weight during pregnancy, and their joint effects were also unknown. The aim of our stu...

    Authors: Chao Jiang, Qingzhi Hou, Yaling Huang, Juan Ye, Xiaolian Qin, Yu Zhang, Wen Meng, Qiuyan Wang, Yonghua Jiang, Haiying Zhang, Mujun Li, Zengnan Mo and Xiaobo Yang

    Citation: BMC Pregnancy and Childbirth 2018 18:144

    Content type: Research article

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  2. To evaluate possible predictive factors of spontaneous prematurity in fetuses with congenital diaphragmatic hernia (CDH).

    Authors: Bruna Maria Lopes Barbosa, Agatha S. Rodrigues, Mario Henrique Burlacchini Carvalho, Roberto Eduardo Bittar, Rossana Pulcineli Vieira Francisco and Lisandra Stein Bernardes

    Citation: BMC Pregnancy and Childbirth 2018 18:27

    Content type: Research article

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  3. Late preterm (LPT) newborns, defined as those born between 34 0/7 and 36 6/7 gestational weeks, have higher short- and long-term morbidity and mortality than term infants (≥37 weeks). A categorization to justi...

    Authors: Noémie Bouchet, Angèle Gayet-Ageron, Marina Lumbreras Areta, Riccardo Erennio Pfister and Begoña Martinez de Tejada

    Citation: BMC Pregnancy and Childbirth 2018 18:17

    Content type: Research article

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  4. Over the previous two decades the incidence and number of unplanned out of hospital births Victoria has increased. As the only out of hospital emergency care providers in Victoria, paramedics would provide car...

    Authors: Gayle McLelland, Lisa McKenna, Amee Morgans and Karen Smith

    Citation: BMC Pregnancy and Childbirth 2018 18:15

    Content type: Research article

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  5. Infant mortality rates are commonly used to compare the health of populations. Observed differences are often attributed to variation in child health care quality. However, any differences are at least partly ...

    Authors: Ania Zylbersztejn, Ruth Gilbert, Anders Hjern and Pia Hardelid

    Citation: BMC Pregnancy and Childbirth 2017 17:430

    Content type: Research article

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  6. The aim of the present study was to establish the normal ranges for foetal nasal bone length (NBL), prenasal skin thickness (PNT), interocular distance (IOD), and ratio of prenasal thickness to- nasal bone len...

    Authors: Ayşegül Altunkeser and M. Kazım Körez

    Citation: BMC Pregnancy and Childbirth 2017 17:416

    Content type: Research article

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  7. Little is known about the epidemiology of congenital hydrocephalus (CH) in China. This study aimed to depict recent changes in CH prevalence and perinatal outcomes of the affected newborns.

    Authors: Ling Yi, Chaomin Wan, Changfei Deng, Xiaohong Li, Kui Deng, Yi Mu, Jun Zhu, Qi Li, Yanping Wang and Li Dai

    Citation: BMC Pregnancy and Childbirth 2017 17:406

    Content type: Research article

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  8. Fetal heart rate abnormalities (FHR) during and after external cephalic version (ECV) are relatively frequent. They may raise concern about fetal wellbeing. Only occasionally they may lead to an emergency cesa...

    Authors: Simone M. Kuppens, Ida Smailbegovic, Saskia Houterman, Ingrid de Leeuw and Tom H. Hasaart

    Citation: BMC Pregnancy and Childbirth 2017 17:363

    Content type: Research article

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  9. In contrast to other countries, Austria rarely offers alternative models to medical led-care. In an attempt to improve the facilities, a midwife-led care service was incorporated within the Department of Obste...

    Authors: Barbara Bodner-Adler, Oliver Kimberger, Julia Griebaum, Peter Husslein and Klaus Bodner

    Citation: BMC Pregnancy and Childbirth 2017 17:357

    Content type: Research article

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  10. Neural tube defects are among the most common birth defects, contributing to miscarriage, infant mortality, severe congenital abnormalities and serious disabilities. It is burdensome to patients, caregivers, h...

    Authors: Meselech Ambaw Dessie, Ejigu Gebeye Zeleke, Shimelash Bitew Workie and Ayanaw Worku Berihun

    Citation: BMC Pregnancy and Childbirth 2017 17:313

    Content type: Research article

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  11. Magnesium sulphate (MgSO4) is the only treatment approved for fetal neuroprotection. No information on its use is available in the absence of a national registry of neonatal practices. The objective of our study ...

    Authors: Clément Chollat, Lise Le Doussal, Gaëlle de la Villéon, Delphine Provost and Stéphane Marret

    Citation: BMC Pregnancy and Childbirth 2017 17:304

    Content type: Research article

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  12. Maternity waiting homes (MWHs) are accommodations located near a health facility where women can stay towards the end of pregnancy and/or after birth to enable timely access to essential childbirth care or car...

    Authors: Loveday Penn-Kekana, Shreya Pereira, Julia Hussein, Hannah Bontogon, Matthew Chersich, Stephen Munjanja and Anayda Portela

    Citation: BMC Pregnancy and Childbirth 2017 17:269

    Content type: Research article

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  13. Birth centres are described as settings where women with uncomplicated pregnancies can give birth in a home-like environment assisted by midwives and maternity care assistants. If complications arise or threat...

    Authors: Inge C. Boesveld, Marieke A. A. Hermus, Hanneke J. de Graaf, Marit Hitzert, Karin M. van der Pal-de Bruin, Raymond G. de Vries, Arie Franx and Therese A. Wiegers

    Citation: BMC Pregnancy and Childbirth 2017 17:259

    Content type: Research article

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  14. Fetoscopic LASER coagulation of the placental anastomoses has changed the prognosis of twin-twin transfusion syndrome. However, the prematurity rate in this cohort remains very high. To date, strategies propos...

    Authors: Carlota Rodó, Sílvia Arévalo, Liesbeth Lewi, Isabel Couck, Bettina Hollwitz, Kurt Hecher and Elena Carreras

    Citation: BMC Pregnancy and Childbirth 2017 17:256

    Content type: Study protocol

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  15. Elective abortions show a secular decline in high income countries. That general pattern, however, may mask meaningful differences—and a potentially rising trend—among age, income, and other racial/ethnic grou...

    Authors: Tim A. Bruckner, Laust H. Mortensen and Ralph A. Catalano

    Citation: BMC Pregnancy and Childbirth 2017 17:214

    Content type: Research article

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  16. Inconsistent evidence of a higher risk of adverse perinatal outcomes during off-hours compared to office hours necessitated a search for clear evidence of an association between time of birth and adverse perin...

    Authors: Andrew Mgaya, Januarius Hinju and Hussein Kidanto

    Citation: BMC Pregnancy and Childbirth 2017 17:184

    Content type: Research article

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  17. Antenatal care models vary widely around the world, reflecting local contexts, drivers and resources. Randomised controlled trials (RCTs) have tested the impact of multi-component antenatal care interventions ...

    Authors: Andrew Symon, Jan Pringle, Soo Downe, Vanora Hundley, Elaine Lee, Fiona Lynn, Alison McFadden, Jenny McNeill, Mary J Renfrew, Mary Ross-Davie, Edwin van Teijlingen, Heather Whitford and Fiona Alderdice

    Citation: BMC Pregnancy and Childbirth 2017 17:8

    Content type: Research article

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  18. To evaluate the impact of the introduction of prenatal screening on time of detection and pregnancy outcome for trisomy 21 (T21), trisomy 18 (T18) and trisomy 13 (T13).

    Authors: Katelijne Bouman, Marian K. Bakker, Erwin Birnie, Lies ter Beek, Caterina M. Bilardo, Irene M. van Langen and Hermien E. K. de Walle

    Citation: BMC Pregnancy and Childbirth 2017 17:4

    Content type: Research article

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  19. The Lao People’s Democratic Republic (Lao PDR) is a lower-middle income country making steady progress improving maternal and child health outcomes. We sought to ascertain if there have been improvements in th...

    Authors: Sonja J. Olsen, Phommady Vetsaphong, Phouvanh Vonglokham, Sara Mirza, Viengphone Khanthamaly, Touy Chanthalangsy, Seth Chittanavanh, Bounkong Syhavong, Ann Moen, Joseph Bresee, Andrew Corwin and Anonh Xeuatvongsa

    Citation: BMC Pregnancy and Childbirth 2016 16:379

    Content type: Research article

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  20. Rates of maternal mortality and morbidity vary markedly, both between and within countries. Documenting these variations, in a very unequal society like South Africa, provides useful information to direct init...

    Authors: Njeri Wabiri, Matthew Chersich, Olive Shisana, Duane Blaauw, Helen Rees and Ntabozuko Dwane

    Citation: BMC Pregnancy and Childbirth 2016 16:256

    Content type: Research article

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  21. Calgary, Alberta has the fourth highest immigrant population in Canada and ethnic minorities comprise 28 % of its total population. Previous studies have found correlations between minority status and poor pre...

    Authors: Alexandra M. Robinson, Karen M. Benzies, Sharon L. Cairns, Tak Fung and Suzanne C. Tough

    Citation: BMC Pregnancy and Childbirth 2016 16:215

    Content type: Research article

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  22. Leptin and insulin levels are key factors regulating fetal and neonatal energy homeostasis, development and growth. Both biomarkers are used as predictors of weight gain and obesity during infancy. There are c...

    Authors: José Guzmán-Bárcenas, José Alfredo Hernández, Joel Arias-Martínez, Héctor Baptista-González, Guillermo Ceballos-Reyes and Claudine Irles

    Citation: BMC Pregnancy and Childbirth 2016 16:179

    Content type: Research article

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  23. The causes of maternal death are now classified internationally according to ICD-MM. One significant change with the introduction of ICD-MM in 2012 was the reclassification of maternal suicide from the indirec...

    Authors: Marian Knight, Manisha Nair, Peter Brocklehurst, Sara Kenyon, James Neilson, Judy Shakespeare, Derek Tuffnell and Jennifer J. Kurinczuk

    Citation: BMC Pregnancy and Childbirth 2016 16:178

    Content type: Research article

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  24. Induction of labour (IOL) has become more common among many populations, but the trends and drivers of IOL in the Northern Territory (NT) of Australia are not known. This study investigated trends in IOL and a...

    Authors: Pasqualina Coffey, John Condon, Karen Dempsey, Steven Guthridge and Fintan Thompson

    Citation: BMC Pregnancy and Childbirth 2016 16:126

    Content type: Research article

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  25. Risk factors for teenage pregnancy are linked to many factors, including a family history of teenage pregnancy. This research examines whether a mother’s teenage childbearing or an older sister’s teenage pregn...

    Authors: Elizabeth Wall-Wieler, Leslie L. Roos and Nathan C. Nickel

    Citation: BMC Pregnancy and Childbirth 2016 16:120

    Content type: Research article

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  26. The stillbirth rate in most high income countries reduced in the early part of the 20th century but has apparently been static over the past 2½ decades. However, there has not been any account taken of pregnancy ...

    Authors: Brad M. Farrant, Fiona J. Stanley, Pia Hardelid and Carrington C.J. Shepherd

    Citation: BMC Pregnancy and Childbirth 2016 16:112

    Content type: Research article

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  27. Collection and storage of an infant’s cord blood at birth is an option available to many new parents. Antenatal health care providers have an important role in providing non-biased and evidence based informati...

    Authors: Lisa Peberdy, Jeanine Young and Lauren Kearney

    Citation: BMC Pregnancy and Childbirth 2016 16:81

    Content type: Research article

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  28. Birth defects are a leading cause of neonatal and infant mortality, and several studies have indicated an increase in the prevalence of birth defects; more recent investigations have suggested that the trends ...

    Authors: Dirga Kumar Lamichhane, Jong-Han Leem, Myungsook Park, Jung Ae Kim, Hwan Cheol Kim, Jin Hee Kim and Yun-Chul Hong

    Citation: BMC Pregnancy and Childbirth 2016 16:61

    Content type: Research article

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  29. We assessed whether the reported decrease in fertility rates among 15 to 19 years old Brazilian adolescents has met with a parallel decrease in very young adolescent (10 to 14 years old) fertility rates. So we...

    Authors: Ana Luiza Vilela Borges, Christiane Borges do Nascimento Chofakian, Ana Paula Sayuri Sato, Elizabeth Fujimori, Luciane Simões Duarte and Murilo Novaes Gomes

    Citation: BMC Pregnancy and Childbirth 2016 16:57

    Content type: Research article

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    The Erratum to this article has been published in BMC Pregnancy and Childbirth 2016 16:204

  30. Seasonal variations greatly influence birth patterns differently from country to country. In Ghana, there is paucity of information on birth seasonal patterns. This retrospective study described the trends and...

    Authors: Eric Osei, Isaac Agbemefle, Gideon Kye-Duodu and Fred Newton Binka

    Citation: BMC Pregnancy and Childbirth 2016 16:48

    Content type: Research article

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  31. Little is known about secular trends and seasonal variation in the birth prevalence of omphalocele in China. This study aimed to explore the long-term trends and seasonality of this birth defect, to provide in...

    Authors: Xiaohong Li, Li Dai, Yanping Wang, Lin Yi, Changfei Deng, Kui Deng, Guangxuan Zhou, Qi Li, Zheng Liu, Ying Deng, Jun Zhu and Xiaosong Li

    Citation: BMC Pregnancy and Childbirth 2015 15:102

    Content type: Research article

    Published on:

  32. Overweight and obesity are a public health problem with a multifactorial aetiology. The objective of this study was to evaluate risk factors for overweight and obesity in children at 6 years of age, including ...

    Authors: Daniel S Portela, Tatiana O Vieira, Sheila MA Matos, Nelson F de Oliveira and Graciete O Vieira

    Citation: BMC Pregnancy and Childbirth 2015 15:94

    Content type: Research article

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  33. This paper identifies patterns of health inequalities (consistency and magnitude) of socioeconomic disparities for multiple maternal and child health (MCH) outcomes that represent different health care needs o...

    Authors: Nihaya Daoud, Patricia O’Campo, Anita Minh, Marcelo L Urquia, Susie Dzakpasu, Maureen Heaman, Janusz Kaczorowski, Cheryl Levitt, Janet Smylie and Beverley Chalmers

    Citation: BMC Pregnancy and Childbirth 2015 14:393

    Content type: Research article

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  34. As a result of the growing number of interventions that are now performed in the context of maternity care, health authorities have begun to examine the possible repercussions for service provision and for mat...

    Authors: Ramón Escuriet-Peiró, Josefina Goberna-Tricas, Maria J Pueyo-Sanchez, Neus Garriga-Comas, Immaculada Úbeda-Bonet, Carmen Caja-López, Isabel Espiga-López and Vicente Ortún-Rubio

    Citation: BMC Pregnancy and Childbirth 2015 15:23

    Content type: Research article

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  35. Low or high prepregnancy body mass index (BMI) and inadequate or excess gestational weight gain (GWG) are associated with adverse neonatal outcomes. This study estimates the contribution of these risk factors ...

    Authors: Susie Dzakpasu, John Fahey, Russell S Kirby, Suzanne C Tough, Beverley Chalmers, Maureen I Heaman, Sharon Bartholomew, Anne Biringer, Elizabeth K Darling, Lily S Lee and Sarah D McDonald

    Citation: BMC Pregnancy and Childbirth 2015 15:21

    Content type: Research article

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  36. Although the evaluation of caesarean delivery rates has been suggested as one of the most important indicators of quality in obstetrics, it has been criticized because of its controversial ability to capture m...

    Authors: Gianpaolo Maso, Lorenzo Monasta, Monica Piccoli, Luca Ronfani, Marcella Montico, Francesco De Seta, Sara Parolin, Caterina Businelli, Laura Travan and Salvatore Alberico

    Citation: BMC Pregnancy and Childbirth 2015 15:20

    Content type: Research article

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  37. The birth weight and gestational age at birth are two important variables that define neonatal morbidity and mortality. In developed countries, chronic maternal diseases like hypertension, diabetes mellitus, r...

    Authors: Tunny Sebastian, Bijesh Yadav, Lakshmanan Jeyaseelan, Reeta Vijayaselvi and Ruby Jose

    Citation: BMC Pregnancy and Childbirth 2015 15:7

    Content type: Research article

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  38. 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...

    Authors: Yajun Liu, Guanghui Li, Yi Chen, Xin Wang, Yan Ruan, Liying Zou and Weiyuan Zhang

    Citation: BMC Pregnancy and Childbirth 2014 14:410

    Content type: Research article

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  39. Preterm birth, a leading cause of neonatal death, is more common in multiple births and thus there has being an increasing call for reducing multiple births in ART. However, few studies have compared risk fact...

    Authors: Xu K Xu, Yueping A Wang, Zhuoyang Li, Kei Lui and Elizabeth A Sullivan

    Citation: BMC Pregnancy and Childbirth 2014 14:406

    Content type: Research article

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  40. Approximately 5 in 1,000 deliveries in England and Wales result in stillbirth, with little improvement in figures over the last few decades. The aim of this study was to investigate the association between cli...

    Authors: Nicole Penn, Eugene Oteng-Ntim, Laura L Oakley and Pat Doyle

    Citation: BMC Pregnancy and Childbirth 2014 14:404

    Content type: Research article

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  41. Little attention has been given to the impact of singlehood during pregnancy. The aim of this study was to examine the impact of marital status on diet during pregnancy and pregnancy outcome.

    Authors: Jorunn Farbu, Margaretha Haugen, Helle Margrete Meltzer and Anne Lise Brantsæter

    Citation: BMC Pregnancy and Childbirth 2014 14:396

    Content type: Research article

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  42. The rate of cesarean delivery in the United States is variable across geographic areas. The aims of this study are two-fold: (1) to determine whether the geographic variation in cesarean delivery rate is consi...

    Authors: Rachel Mosher Henke, Lauren M Wier, William D Marder, Bernard S Friedman and Herbert S Wong

    Citation: BMC Pregnancy and Childbirth 2014 14:387

    Content type: Research article

    Published on:

  43. Women who deliver preterm infants are at a much greater risk for repeating a preterm birth (PTB), compared to women without a history of PTB. However, little is known about the prevalence of the risk factors w...

    Authors: David A Webb, Leny Mathew and Jennifer F Culhane

    Citation: BMC Pregnancy and Childbirth 2014 14:368

    Content type: Research article

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  44. Preference for sons in India has resulted in a skewed sex ratio at live birth, probably as a consequence of female feticide. However, it is unclear if these cultural preferences are also currently present in c...

    Authors: Cameron Smith and Andrew Fogarty

    Citation: BMC Pregnancy and Childbirth 2014 14:332

    Content type: Research article

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  45. Although studies have shown an association between air pollutants from anthropogenic sources and pregnancy outcomes, little is known regarding the association between low birth weight (LBW) and exposure to emi...

    Authors: Ageo Mário Cândido da Silva, Gisele Pedroso Moi, Inês Echenique Mattos and Sandra de Souza Hacon

    Citation: BMC Pregnancy and Childbirth 2014 14:309

    Content type: Research article

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  46. The use of assisted conception (AC) has been associated with higher risk of adverse perinatal outcome. Few data are available on the outcome of AC-neonates when pregnancy ends before 32 weeks of gestational age.

    Authors: Carlo Corchia, Monica Da Frè, Domenico Di Lallo, Luigi Gagliardi, Franco Macagno, Virgilio Carnielli, Silvana Miniaci and Marina Cuttini

    Citation: BMC Pregnancy and Childbirth 2014 14:307

    Content type: Research article

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  47. The reduction of the preterm delivery (PTD) rate is a maternal and child health target. Elevated rates have been found among several immigrant groups, but few studies have distinguished between PTD according t...

    Authors: Ingvil K Sørbye, Anne K Daltveit, Johanne Sundby and Siri Vangen

    Citation: BMC Pregnancy and Childbirth 2014 14:239

    Content type: Research article

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