Karayna G. Fernandes - Publications

A multicenter analysis of 1364 elective/rescue cerclages in Brazil: Perinatal outcomes, complications, and the role of vaginal progesterone.

Journal: International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics

Published: July 19, 2026

Developing a social vulnerability index for antenatal care screening of risk for adverse maternal and perinatal outcomes.

Journal: International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics

Published: March 21, 2026

Understanding stillbirth causes in Brazil using the CODAC classification system.

Journal: The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians

Published: January 11, 2026

The use of the shortened versions of the perceived stress scale in the obstetric population: assessing agreement and reliability.

Journal: Journal of psychosomatic obstetrics and gynaecology

Published: December 26, 2025

Stillbirths in women with hypertensive disorders in Pregnancy: Causes and investigations according to a multicenter study in Brazil.

Journal: Pregnancy hypertension

Published: July 07, 2025

Adverse perinatal outcomes of unvaccinated pregnant women with respiratory symptoms during the COVID-19 pandemic: Evidence from a Brazilian multicenter study.

Journal: International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics

Published: November 21, 2024

Causes and investigation of stillbirths in Brazil: A multicentre cross-sectional study in 10 referral maternity hospitals.

Journal: International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics

Published: May 08, 2024

Disruption and recovery of family planning, contraception and other sexual and reproductive health services in Brazil with COVID-19 pandemic: a mixed methods approach.

Journal: Reproductive health

Published: April 15, 2024

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

Journal: Pregnancy hypertension

Published: March 18, 2024

Knowledge and perception of labor rights violations among postpartum women in three Brazilian maternity hospitals: a cross-sectional study.

Journal: BMC pregnancy and childbirth

Published: December 02, 2023

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.

Journal: International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics

Published: June 25, 2023

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

Journal: Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia

Published: June 20, 2023