OOIR: Observatory of International Research

Papers

(The H4-Index of BMJ Global Health is 56. 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
Characterising long COVID: a living systematic review	590
Trends and projections of caesarean section rates: global and regional estimates	535
Infection and mortality of healthcare workers worldwide from COVID-19: a systematic review	438
The global health workforce stock and distribution in 2020 and 2030: a threat to equity and ‘universal’ health coverage?	204
The isolated effect of age on the risk of COVID-19 severe outcomes: a systematic review with meta-analysis	187
The unintended consequences of COVID-19 vaccine policy: why mandates, passports and restrictions may cause more harm than good	153
The COVID-19 pandemic and healthcare systems in Africa: a scoping review of preparedness, impact and response	150
Economic impacts of overweight and obesity: current and future estimates for eight countries	142
Decolonising global health in 2021: a roadmap to move from rhetoric to reform	140
Boys are more likely to be undernourished than girls: a systematic review and meta-analysis of sex differences in undernutrition	131
Assessing the burden of COVID-19 in developing countries: systematic review, meta-analysis and public policy implications	120
Global developments in social prescribing	117
Prevalence of chronic kidney disease in Asia: a systematic review and analysis	109
Economic impacts of overweight and obesity: current and future estimates for 161 countries	108
Indirect effects of COVID-19 on maternal, neonatal, child, sexual and reproductive health services in Kampala, Uganda	102
Disruptions in maternal health service use during the COVID-19 pandemic in 2020: experiences from 37 health facilities in low-income and middle-income countries	96
A double-edged sword—telemedicine for maternal care during COVID-19: findings from a global mixed-methods study of healthcare providers	94
Severe malnutrition or famine exposure in childhood and cardiometabolic non-communicable disease later in life: a systematic review	92
Nudging toward vaccination: a systematic review	92
How we classify countries and people—and why it matters	91
Evidence of the effectiveness of travel-related measures during the early phase of the COVID-19 pandemic: a rapid systematic review	90
HPV self-sampling for cervical cancer screening: a systematic review of values and preferences	88
The impact of war on the health system of the Tigray region in Ethiopia: an assessment	87
Adverse maternal, fetal, and newborn outcomes among pregnant women with SARS-CoV-2 infection: an individual participant data meta-analysis	87
Impact of COVID-19 pandemic lockdown on movement behaviours of children and adolescents: a systematic review	86

Natural hazards, disasters and violence against women and girls: a global mixed-methods systematic review	82
Country-specific estimates of unintended pregnancy and abortion incidence: a global comparative analysis of levels in 2015–2019	82
Unravelling ‘low-resource settings’: a systematic scoping review with qualitative content analysis	81
Examining the level and inequality in health insurance coverage in 36 sub-Saharan African countries	78
Disruption in essential health services in Mexico during COVID-19: an interrupted time series analysis of health information system data	76
SARS-CoV-2 infection in Africa: a systematic review and meta-analysis of standardised seroprevalence studies, from January 2020 to December 2021	76
Conceptualising Long COVID as an episodic health condition	74
Global burden of post-traumatic stress disorder and major depression in countries affected by war between 1989 and 2019: a systematic review and meta-analysis	72
Whole-genome sequencing as part of national and international surveillance programmes for antimicrobial resistance: a roadmap	71
Responding to the COVID-19 second wave in Thailand by diversifying and adapting lessons from the first wave	71
Impact of COVID-19 lockdowns on adolescent pregnancy and school dropout among secondary schoolgirls in Kenya	70
The health workforce status in the WHO African Region: findings of a cross-sectional study	68
No Jab, No Job? Ethical Issues in Mandatory COVID-19 Vaccination of Healthcare Personnel	68
Conference equity in global health: a systematic review of factors impacting LMIC representation at global health conferences	67
How global is global health research? A large-scale analysis of trends in authorship	66
Reduction in healthcare services during the COVID-19 pandemic in China	65
Managing outbreaks of highly contagious diseases in prisons: a systematic review	64
Selfie consents, remote rapport, and Zoom debriefings: collecting qualitative data amid a pandemic in four resource-constrained settings	64
Words matter: political and gender analysis of speeches made by heads of government during the COVID-19 pandemic	64
The human toll and humanitarian crisis of the Russia-Ukraine war: the first 162 days	61
TikTok and public health: a proposed research agenda	61
Impact of social isolation on mortality and morbidity in 20 high-income, middle-income and low-income countries in five continents	60
Ethnic minority status as social determinant for COVID-19 infection, hospitalisation, severity, ICU admission and deaths in the early phase of the pandemic: a meta-analysis	60
A health systems resilience research agenda: moving from concept to practice	60
Threats by artificial intelligence to human health and human existence	60
Impact of the COVID-19 pandemic and response on the utilisation of health services in public facilities during the first wave in Kinshasa, the Democratic Republic of the Congo	59
The uses of knowledge in global health	59
The impact of cash transfers on mental health in children and young people in low-income and middle-income countries: a systematic review and meta-analysis	57
Prevalence of Long COVID symptoms in Bangladesh: a prospective Inception Cohort Study of COVID-19 survivors	56
Small and sick newborn care during the COVID-19 pandemic: global survey and thematic analysis of healthcare providers’ voices and experiences	56
Is the cure really worse than the disease? The health impacts of lockdowns during COVID-19	56