Are vitamin D intake and serum levels in the mid-trimester of pregnancy associated with preeclampsia? Results from a Brazilian multicentre cohort.

Objective: To explore the association between serum levels and food intake of Vitamin D (VD) among healthy women in mid-pregnancy and preeclampsia.

Study Design: In a Brazilian multicentre cohort of healthy nulliparous pregnant women from five maternity centres we developed a nested case-control analysis comparing cases with and without preeclampsia. Women were enrolled and followed during prenatal care, including only singleton pregnancies, without any fetal malformations or previous chronic maternal disease.

The experience of pregnant women and their families who were infected with covid-19 before vaccination: A qualitative approach within a multicenter study in Brazil.

Background: Pregnant and postpartum women infected by COVID-19 are at increased risk of adverse outcomes, including negative effects on their mental health. Brazilian maternal mortality rate due to COVID-19 is 2.5 times higher than overall mortality rates.

The effect of body mass index on maternal and perinatal outcomes in COVID-19 infection during pregnancy and postpartum: Secondary analysis from the REBRACO cohort study.

Objectives: To compare maternal and perinatal outcomes among women with obesity, overweight, and normal body mass index, associated with COVID-19 infection during pregnancy and postpartum.

Method: Prospective Cohort Study, within the REBRACO (Brazilian Network of COVID-19 in Pregnancy) multicenter initiative. Confirmed positive cases of SARS-CoV-2 were included, and women categorized into three groups according to their pre-pregnancy BMI: obesity (BMI ≥ 30), overweight (BMI <30 but >25), and normal BMI.

Brazilian Black Women are at Higher Risk for COVID-19 Complications: An Analysis of REBRACO, a National Cohort.

Objective:  To evaluate the impact of the race (Black versus non-Black) on maternal and perinatal outcomes of pregnant women with COVID-19 in Brazil.

Methods:  This is a subanalysis of REBRACO, a Brazilian multicenter cohort study designed to evaluate the impact of COVID-19 on pregnant women. From February 2020 until February 2021, 15 maternity hospitals in Brazil collected data on women with respiratory symptoms.

Measuring resilience and stress during pregnancy and its relation to vulnerability and pregnancy outcomes in a nulliparous cohort study.

Background: Resilience reflects coping with pregnancy-specific stress, including physiological adaptations of the maternal organism or factors arising from the socioeconomic context, such as low income, domestic violence, drug and alcohol use, lack of a support network and other vulnerability characteristics. Resilience is a dynamic characteristic that should be comparatively evaluated within a specific context; its association with perceived stress and social vulnerability during pregnancy is still not fully understood. This study aimed at exploring maternal resilience, perceived stress and social vulnerability during pregnancy and its associated factors and outcomes.

Head circumference as an epigenetic risk factor for maternal nutrition.

Nutrition indicators for malnutrition can be screened by many signs such as stunting, underweight or obesity, muscle wasting, and low caloric and nutrients intake. Those deficiencies are also associated with low socioeconomic status. Anthropometry can assess nutritional status by maternal weight measurements during pregnancy.

Preeclampsia among women with COVID-19 during pregnancy and its impact on maternal and perinatal outcomes: Results from a national multicenter study on COVID in Brazil, the REBRACO initiative.

Objective: To evaluate the prevalence of preeclampsia among cases of COVID-19 infection during pregnancy and the association between both conditions, in a multicenter cohort of Brazilian women with respiratory symptoms.

Study Design: Ancillary analysis of the Brazilian Network of COVID-19 in Obstetrics (REBRACO) study. We performed a nested case-control analysis selecting all women with COVID-19 and compared outcomes between women with and without PE.

Agreement between the short and long versions of the Resilience Scale: A validation among the obstetric population according to vulnerability status.

Objective: To compare the 14-item Resilience Scale (RS-14) and the original 25-item scale (RS-25) in the obstetric population, including vulnerable and non-vulnerable women.

Methods: A Brazilian prospective cohort study was conducted of nulliparous singleton pregnant women from March 2018 to March 2020. Women who completed the RS-25 at 27-29 weeks of pregnancy were included in the analysis.

Perinatal Outcomes and Factors Associated with Ethnic Group in cases of Preterm Birth: the Multicenter Study on Preterm Birth in Brazil.

Objective:  To investigate the characteristics of women who had preterm birth (PTB) and related outcomes according to ethnicity.

Methods:  A secondary analysis of a multicenter cross-sectional study conducted in Brazil. Women who had PTB were classified by self-report as white and non-white.

Pessary Plus Progesterone to Prevent Preterm Birth in Women With Short Cervixes: A Randomized Controlled Trial.

Objective: To test the effectiveness of cervical pessary in addition to vaginal progesterone for the prevention of preterm birth in women with midpregnancy short cervixes.

Methods: We performed a multicenter, open-label, randomized controlled trial in 17 perinatal centers. Asymptomatic women with singleton or twin pregnancies and cervical lengths of 30 mm or less, measured at 18 0/7-22 6/7 weeks of gestation, were randomized to cervical pessary plus vaginal progesterone (pessary plus progesterone group) or vaginal progesterone only (progesterone-only group) (200 mg/day).

Maternal Nutrition Status Associated with Pregnancy-Related Adverse Outcomes.

Although maternal nutrition has an impact on fetal development and gestational outcome, tracking maternal nutrition in outpatient practice is still complex and involves proper technical capacitation in this area. Nevertheless, the association between nutritional variables may broaden the ability to predict the occurrence of gestational disorders and prevention management. We aimed to identify factors that could indicate the probability of adverse outcomes in mid-pregnancy.

The food patterns of a multicenter cohort of Brazilian nulliparous pregnant women.

Assessment of human nutrition is a complex process, in pregnant women identify dietary patterns through mean nutrient consumption can be an opportunity to better educate women on how to improve their overall health through better eating. This exploratory study aimed to identify a posteriori dietary patterns in a cohort of nulliparous pregnant women. The principal component analysis (PCA) technique was performed, with Varimax orthogonal rotation of data extracted from the 24-h dietary recall, applied at 20 weeks of gestation.

Facing the COVID-19 pandemic inside maternities in Brazil: A mixed-method study within the REBRACO initiative.

Introduction: COVID-19 pandemic posed major challenges in obstetric health care services. Preparedness, development, and implementation of new protocols were part of the needed response. This study aims to describe the strategies implemented and the perspectives of health managers on the challenges to face the pandemic in 16 different maternity hospitals that comprise a multicenter study in Brazil, called REBRACO (Brazilian network of COVID-19 during pregnancy).

Proposal of MUAC as a fast tool to monitor pregnancy nutritional status: results from a cohort study in Brazil.

Objective: In Brazil, although the assessment of maternal nutritional status is recommended using body mass index (BMI), this is only possible in settings adequately prepared. Midupper arm circumference (MUAC) is another biological variable identified as a tool for rapid assessment of nutritional status that is correlated with BMI. Therefore, we aim to surrogate BMI by MUAC cut-offs for rapid screening of maternal nutritional status starting at midpregnancy.

Advantages and Disadvantages of Medical Abortion, According to Brazilian Residents in Obstetrics and Gynaecology.

Objective:  To find out which was the opinion of residents in obstetrics and gynecology about the advantages and disadvantages of medical abortion as compared with surgical procedures.

Method:  Cross-sectional multicenter study among residents in obstetrics and gynecology from 21 maternity hospitals located in 4 different geographical regions of Brazil, using a self-responded questionnaire with 31 questions related to their opinion and experience on providing abortion services.

Results:  Most residents agreed that "being less invasive" (94.

Call to action for a South American network to fight COVID-19 in pregnancy.

A call to action for joint efforts by South American centers to tackle COVID‐19 in pregnancy.

Gestational trophoblastic neoplasia lethality among Brazilian women: A retrospective national cohort study.

Objective: To investigate GTN lethality among Brazilian women comparing cases of death by GTN with those who survived, thereby identifying factors associated with GTN lethality.

Methods: We retrospectively reviewed medical records of women with GTN treated at ten Brazilian GTN Reference Centers, from January 1960 to December 2017. We evaluated factors associated with death from GTN and used Cox proportional hazards regression models to identify independent variables with significant influence on the risk of death.

Understanding of changes in abortion rate following liberalization of abortion law among Brazilian residents in obstetrics and gynecology.

Objective: To evaluate residents' knowledge about the evolution of abortion rates in countries where abortion has been legalized, and to assess whether such knowledge correlates with residents' sociodemographic characteristics and experience in abortion care.

Methods: A multicenter, cross-sectional study was conducted in 21 Brazilian hospitals with 404 medical residents in obstetrics and gynecology. Data collection occurred during February 2015 through January 2016.

Knowledge on medical abortion among Brazilian medical residents in Gynecology and Obstetrics.

Medical or drug-induced abortion has been proven as an effective means for termination of pregnancy. However, training of providers in the use of misoprostol has been limited. The current article aims to identify the degree of knowledge on medical abortion among Brazilian medical residents in Gynecology and Obstetrics.

A randomized controlled trial on the use of pessary plus progesterone to prevent preterm birth in women with short cervical length (P5 trial).

Background: Preterm birth is the leading cause of mortality and disability in newborn and infants. Having a short cervix increases the risk of preterm birth, which can be accessed by a transvaginal ultrasound scan during the second trimester. In women with a short cervix, vaginal progesterone and pessary can both reduce this risk, which progesterone more established than cervical pessary.

The abstract versus the concrete: differing opinions of medical residents in obstetrics and gynaecology about abortion and punishment of abortion.

To investigate the opinions of Brazilian medical residents in Obstetrics and Gynaecology on abortion legislation according to their personal beliefs. A multicentre cross-sectional study. Residents at 21 university teaching hospitals completed a self-report questionnaire on their opinions in abstract terms, and about punishing women who abort in general and women they know.

Ethnic differences in maternal near miss.

Purpose: To evaluate the association between ethnic differences and the occurrence of maternal near miss (MNM) in the Amazon and Northeast regions of Brazil.

Methods: This is a secondary analysis of a national cross-sectional study focused on the assessment of care to pregnancy, childbirth, and infants under 1 year of age. Ethnicity was classified as white, black or indigenous.