OOIR: Observatory of International Research

Papers

(The H4-Index of BMC Pregnancy and Childbirth is 37. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2020-11-01 to 2024-11-01.)

Article	Citations
Epidemiological trends of maternal hypertensive disorders of pregnancy at the global, regional, and national levels: a population‐based study	152
Psychosocial factors associated with postpartum psychological distress during the Covid-19 pandemic: a cross-sectional study	136
Women’s views on accepting COVID-19 vaccination during and after pregnancy, and for their babies: a multi-methods study in the UK	123
Haemostatic and thrombo-embolic complications in pregnant women with COVID-19: a systematic review and critical analysis	77
Stressors, coping, and resources needed during the COVID-19 pandemic in a sample of perinatal women	76
Assisted reproductive technology and hypertensive disorders of pregnancy: systematic review and meta-analyses	73
Health outcomes of smoking during pregnancy and the postpartum period: an umbrella review	71
Trends in and determinants of visiting private health facilities for maternal and child health care in Nepal: comparison of three Nepal demographic health surveys, 2006, 2011, and 2016	69
Prevalence and risk factors of severe postpartum hemorrhage: a retrospective cohort study	68
Prevalence and risk factors of postpartum depression in the Middle East: a systematic review and meta–analysis	60
Pregnant women’s well-being and worry during the COVID-19 pandemic: a cross-sectional study	60
The association between SARS-CoV-2 infection and preterm delivery: a prospective study with a multivariable analysis	54
The risk of clinical complications and death among pregnant women with COVID-19 in the Cerner COVID-19 cohort: a retrospective analysis	53
Determinants of completing recommended antenatal care utilization in sub-Saharan from 2006 to 2018: evidence from 36 countries using Demographic and Health Surveys	52
Resilience and vulnerability of maternity services in Zimbabwe: a comparative analysis of the effect of Covid-19 and lockdown control measures on maternal and perinatal outcomes, a single-centre cross	51
The lived experiences of pregnant women during COVID-19 pandemic: a descriptive phenomenological study	50
The impact of COVID-19 first wave national lockdowns on perinatal outcomes: a rapid review and meta-analysis	49
When birth is not as expected: a systematic review of the impact of a mismatch between expectations and experiences	47
Risk factors for perineal and vaginal tears in primiparous women – the prospective POPRACT-cohort study	47
Women’s experiences and perceptions of anxiety and stress during the perinatal period: a systematic review and qualitative evidence synthesis	46
Postpartum women’s psychological experiences during the COVID-19 pandemic: a modified recurrent cross-sectional thematic analysis	46
Depression, anxiety, PTSD, and OCD after stillbirth: a systematic review	46
Prevalence and associated factors of adolescent pregnancy (15–19 years) in East Africa: a multilevel analysis	45
Pregnancy-related anxiety and its associated factors during COVID-19 pandemic in Iranian pregnant women: a web-based cross-sectional study	45
Knowledge, attitudes, practices, and influencing factors of anxiety among pregnant women in Wuhan during the outbreak of COVID-19: a cross-sectional study	44

Maternity care during COVID-19: a qualitative evidence synthesis of women’s and maternity care providers’ views and experiences	44
Differences in pregnancy and perinatal outcomes among symptomatic versus asymptomatic COVID-19-infected pregnant women: a systematic review and meta-analysis	43
Maternal and perinatal characteristics and outcomes of pregnancies complicated with COVID-19 in Kuwait	43
Comparison of fear, anxiety and self-efficacy of childbirth among primiparous and multiparous women	41
Pregnant during the COVID-19 pandemic: an exploration of patients’ lived experiences	41
Pro-poor policies and improvements in maternal health outcomes in India	40
Maternal obesity influences birth weight more than gestational diabetes	40
SARS-COV-2 infection in pregnant women and newborns in a Spanish cohort (GESNEO-COVID) during the first wave	39
Neighbourhood maternal socioeconomic status indicators and risk of congenital heart disease	38
COVID-19 mRNA vaccine and antibody response in lactating women: a prospective cohort study	38
Engagement in perinatal depression treatment: a qualitative study of barriers across and within racial/ethnic groups	37
The perception of Italian pregnant women and new mothers about their psychological wellbeing, lifestyle, delivery, and neonatal management experience during the COVID-19 pandemic lockdown: a web-based	37
Machine learning to predict pregnancy outcomes: a systematic review, synthesizing framework and future research agenda	37
Physical activity and sedentary time during pregnancy and associations with maternal and fetal health outcomes: an epidemiological study	37