OOIR: Observatory of International Research

Papers

(The H4-Index of BMJ Open is 61. 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 2021-09-01 to 2025-09-01.)

Article	Citations
Acupuncture as a therapeutic intervention for post-COVID-19 vaccination urticaria: a systematic review and meta-analysis protocol	320
Development of an international core outcome set for treatment trials in paediatric inguinal hernia: protocol for a three-phase study including a systematic review and Delphi survey	217
Randomised controlled trial on the effect of social support on disease control, mental health and health-related quality of life in people with diabetes from Côte d’Ivoire: the SoDDiCo study protocol	195
Anaesthetic and perioperative considerations for extrapleural pneumonectomy and extended pleurectomy/decortication: a scoping review protocol	163
The Australian and New Zealand brain injury lifespan cohort protocol: Leveraging common data elements to characterise longitudinal outcome and recovery	156
Identifying factors explaining practice variation in secondary stroke prevention in primary care: a cohort study based on all patients with ischaemic stroke in the Stockholm region	155
Prevalence of vitamin D and calcium deficiencies and their health impacts on women of childbearing age: a protocol for systematic review and meta-analysis	155
Association between chronic cerebrospinal venous insufficiency and multiple sclerosis: a systematic review and meta-analysis	154
Post-traumatic stress disorder psychological interventions in sub-Saharan Africa: protocol for a systematic review of the literature	134
Impact of COPD and asthma on in-hospital mortality and management of patients with heart failure in England and Wales: an observational analysis	129
Magnitude of birth trauma and its associated factors in South Wollo public hospitals, northeast Ethiopia, August 2021: Institutional-Based Cross-Sectional Study	127
Prevalence of atrial fibrillation in Northern Sri Lanka: a study protocol for a cross-sectional household survey	126
Experience-based codesign approach to improve care in Australian emergency departments for complex consumer cohorts: the MyED project protocol, Stages 1.1–1.3	113
Relationship of prostate cancer topography and tumour conspicuity on multiparametric magnetic resonance imaging: a protocol for a systematic review and meta-analysis	113
Protocol for a scoping review of patient–clinician digital health interventions for the population with hip fracture	106
Parents’ experience of children with acquired brain injury undergoing neuro-rehabilitation: thematic synthesis protocol	100
Cortisol dynamics in undergraduate nursing students during clinical practice: protocol for an exploratory cross-sectional study	100
Digital NHS Wales: a coding reliability analysis based on the voices of 22 978 patients and clinicians on the benefits, challenges and sustainability of video consulting	98
Virtual reality and speech analysis for the assessment of impulsivity and decision-making: protocol for a comparison with neuropsychological tasks and self-administered questionnaires	93
Examining students’ perception of rural practice following an educational strategy aimed at preparing postsecondary students for rural careers: a systematic review protocol for qualitative studies	89
Relationship between health practices with attitudes towards pregnancy and motherhood and pregnancy symptoms in Iranian pregnant women: a cross-sectional study	88
Addressing gaps in our understanding of the drowning patient: a protocol for the retrospective development of an Utstein style database and multicentre collaboration	87
Observational and prospective study: evaluation of beliefs and representations of chronic treatments of polymedicated patients hospitalised in a vascular medicine and surgery department	87
First-line treatment with durvalumab plus chemotherapy versus chemotherapy alone for metastatic non-small-cell lung cancer in the USA: a cost-effectiveness analysis	87
Ventilation management and outcomes in out-of-hospital cardiac arrest: a protocol for a preplanned secondary analysis of the TTM2 trial	87

Study protocol for data to suppression (D2S): a cluster-randomised, stepped-wedge effectiveness trial of a reporting and capacity-building intervention to improve HIV viral suppression in housing and	86
Cost–benefit analysis of partnership working between fire and rescue and health services across England and Wales during the COVID-19 pandemic	86
Correlation of drug exposure and bacterial susceptibility with treatment response forMycobacterium avium complexlung disease: protocol for a prospective observational cohort study	85
Identifying, synthesising and appraising existing evidence relating to myalgic encephalomyelitis/chronic fatigue syndrome and pregnancy: a mixed-methods systematic review	84
Maternal and neonatal peripartum factors associated with late initiation of breast feeding in Bangladesh: a secondary analysis	84
Melatonin for the prevention of postoperative delirium in older adults: a protocol for a systematic review and meta-analysis	83
Prehospital care for ovarian cancer in Catalonia: could we do better in primary care? Retrospective cohort study	82
Study protocol for a feasibility study of microinterventions in smartphone-based assessments to reduce depressive rumination	81
Province-level distribution and drivers of infant mortality in mainland China: a Geodetector-based analysis of data from 2020	80
Derivation and validation of clinical prediction rules for diagnosis of infectious mononucleosis: a prospective cohort study	80
Effectiveness of analgesic ear drops as add-on treatment to oral analgesics in children with acute otitis media: study protocol of the OPTIMA pragmatic randomised controlled trial	80
Use of the Vitiligo Extent Score: a protocol for a scoping review	80
Cross-sectional and longitudinal analyses of variations of anthropometric measures of obesity with age in the Jackson Heart Study	80
Cross-sectional analyses of online appointment booking and repeat prescription ordering user characteristics in general practices of England in the years 2018–2020	79
Clinical characteristics and mortality of patients with heart failure in Southern Sweden from 2013 to 2019: a population-based cohort study	78
Impact of COVID-19 pandemic on characteristics, extent and trends in child maltreatment in 34 Euro-CAN COST Action countries: a scoping review protocol	78
Impact of a peer-support programme to improve loneliness and social isolation due to COVID-19: does adding a secure, user friendly video-conference solution work better than telephone support alone? P	78
Assessing safe chemotherapy needs and practices in Ile-Ife, Nigeria: a multi-disciplinary quality improvement project	75
Biopsychosocial factors associated with physical activity among Resettlers of the former Soviet Union in Germany: a cross-sectional analysis	74
Empowering communities to use healthy lifestyle centres: an implementation research from Sri Lanka	73
Efficacy of perioperative pain management in paediatric cardiac surgery: a protocol for a network meta-analysis	70
Clinical outcomes of non-COVID-19 orthopaedic patients admitted during the COVID-19 pandemic: a multi-centre interrupted time series analysis across hospitals in six different countries	69
Evaluation of ALBA device for upper extremity motor function in adults with subacute and chronic acquired brain injury: a randomised controlled trial protocol in a tertiary clinic of the metropolitan	68
High-grade cervical disease and cervical cancer in women aged 50 years and older compared with younger women: examining prevalence by HIV status in two large prospective cohorts in Botswana	67
Efficacy of soothing cream gel in the range of motion and chronic pain at the shoulder and elbow: protocol of a double-blinded, randomised, placebo-controlled trial	67
Health effects of selected environmental Exposomes Across the Life courSe in Indian populations using longitudinal cohort studies: GEOHealth HEALS Study protocol	66
Epirubicin for the Treatment of Sepsis and Septic Shock (EPOS-1): study protocol for a randomised, placebo-controlled phase IIa dose-escalation trial	66
Impact of ambient temperature, diurnal temperature range on hyperventilation syndrome emergency admission: a time-series analysis in Beijing, China	64
Comparison of the effects of norepinephrine and phenylephrine on shivering and hypothermia in patients undergoing caesarean section under spinal anaesthesia at a tertiary hospital in China：a randomise	64
Electroacupuncture for mild-to-moderate dry eye: study protocol for a multicentre, randomised, single-blind, sham-controlled trial	64
Protocol for a randomised controlled trial comparing warfarin with no oral anticoagulation in patients with atrial fibrillation on chronic dialysis: the Danish Warfarin-Dialysis (DANWARD) trial	64
Randomised multicentre effectiveness trial of rapid syndromic testing by panel assay in children presenting to European emergency departments with acute respiratory infections—trial protocol for the A	64
Randomised, double-blind, placebo-controlled study evaluating the effect of allopurinol on the risk of cardiovascular events in patients with high and very high cardiovascular risk, including the pres	63
Different interventions to prevent preterm birth in pregnant women with cervical shortening during pregnancy: a protocol for a network meta-analysis	62
Economic impact of informal caring for a person with arthritis in Australia from 2015 to 2030: a microsimulation approach using national survey data	62
Explorative observational study of Dutch patient–clinician interactions: operationalisation of personal perspective elicitation as part of shared decision-making in real-life audio-recorded consultati	61
Trends in the treatment of fibromyalgia in South Korea between 2011 and 2018: a retrospective analysis of cross-sectional health insurance data	61