IntroductionMaternal mortality is a potentially preventable public health issue. Maternal morbidity is increasingly of interest to aid the reduction of maternal mortality. Obstetric patients admitted to the intensive care unit (ICU) are an important part of the global burden of maternal morbidity. Social determinants influence health outcomes of pregnant women. Additionally, intimate partner violence has a great negative impact on women's health and pregnancy outcome. However, little is known about the contextual and social aspects of obstetric patients treated in the ICU. This study aimed to conduct a systematic review of the social determinants and exposure to intimate partner violence of obstetric patients admitted to an ICU.Methods and analysisA systematic search will be conducted in MEDLINE, CINAHL, ProQuest, LILACS and SciELO from 2000 to 2016. Studies published in English and Spanish will be identified in relation to data reporting on social determinants of health and/or exposure to intimate partner violence of obstetric women, treated in the ICU during pregnancy, childbirth or within 42 days of the end of pregnancy. Two reviewers will independently screen for study eligibility and data extraction. Risk of bias and assessment of the quality of the included studies will be performed by using the Critical Appraisal Skills Programme (CASP) checklist. Data will be analysed and summarised using a narrative description of the available evidence across studies. This systematic review protocol will be reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols (PRISMA-P) guidelines.Ethics and disseminationSince this systematic review will be based on published studies, ethical approval is not required. Findings will be presented at La Trobe University, in Conferences and Congresses, and published in a peer-reviewed journal.Trial registration numberCRD42016037492.

Introducción. El esquema nacional de vacunación del Perú incluye la vacuna contra hepatitis B en recién nacidos; la Organización Mundial de Salud ha establecido metas para la cobertura de dicha vacunación. El objetivo del estudio fue estimar la proporción de recién nacidos de mujeres peruanas participantes de la Encuesta Demográfica y de Salud Familiar (ENDES) del 2016, que recibieron la primera dosis de la vacuna contra hepatitis B al nacer. Métodos. Se realizó un estudio de fuente secundaria, la unidad informante fueron las mujeres en edad fértil de 15 a 49 años, que reportaron tener niños menores de cinco años, cuyo peso al nacer haya sido de 2000g o más, y que contaban con datos referentes a vacunación. Los datos sobre el estado de vacunación contra hepatitis B se obtuvieron a partir de la tarjeta de vacunación del niño menor de cinco años. Los resultados son presentados para el nivel nacional, regional, y según algunos subgrupos específicos. Resultados. A nivel nacional, el 67,5% (IC95%: 66,3-68,6) de recién nacidos de mujeres participantes de la ENDES 2016 recibieron la vacunación contra hepatitis B. La región con mayor cobertura fue Huánuco con 84,3% (IC95%: 80,8-87,2). Entre los recién nacidos en establecimientos de salud públicos, la vacunación llegó al 72,6%, mientras que en establecimientos de salud privados fue el 43,2%. Conclusiones. La proporción de recién nacidos que recibieron la vacunación contra hepatitis B es variable según región, siendo esta mayor entre aquellos que nacieron en establecimientos de salud públicos.

Background Studying severe acute maternal morbidity in the intensive care unit improves our understanding of potential factors affecting maternal health. Aim To review evidence on maternal exposure to intimate partner violence and social determinants of health in women with severe acute maternal morbidity in the intensive care unit. Methods The protocol for this review was registered in PROSPERO (registration number CRD42016037492). A systematic search was performed in MEDLINE, CINAHL, ProQuest, LILACS and SciELO using the search terms “intensive care unit”, “intensive care”, “critical care” and “critically ill” in combination with “intimate partner violence”, “social determinants of health”, “severe acute maternal morbidity”, pregnancy, postpartum and other similar terms. Eligible studies were i) quantitative, ii) published in English and Spanish, iii) from 2000 to 2021, iv) with data related to intimate partner violence and/or social determinants of health, and v) investigating severe acute maternal morbidity (maternity patients treated in the intensive care unit during pregnancy, childbirth or within 42 days of pregnancy termination). Of 52,866 studies initially identified, 1087 full texts were assessed and 156 studies included. Studies were independently assessed by two reviewers for screening, revision, quality assessment and abstracted data. Studies were categorised into high/middle/low-income countries and summarised data were presented using a narrative description, due to heterogenic data as: i) exposure to intimate partner violence and ii) social determinants of health. Results One study assessed intimate partner violence among mothers with severe acute maternal morbidity in the intensive care unit and found that women exposed to intimate partner violence before and during pregnancy had a nearly four-fold risk of severe acute maternal morbidity requiring ICU admission. Few social determinants of health other than age were reported in most studies. Conclusion This review identified a significant gap in knowledge concerning intimate partner violence and social determinants of health in women with severe acute maternal morbidity in the intensive care unit, which is essential to better understand the complete picture of the maternal morbidity spectrum and reduce maternal mortality.