OOIR: Observatory of International Research

Papers

(The H4-Index of Aging Clinical and Experimental Research is 28. 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
Is there a relationship between ACTN3 R577X gene polymorphism and sarcopenia?	180
The effect of treatment strategy on long-term follow-up results in patients with nonvalvular atrial fibrillation in Turkey: AFTER-2 subgroup analysis	139
Malnutrition in COVID-19 survivors: comment	84
Use of bioelectrical impedance analysis in centenarians: a systematic review	79
New horizons in the analysis of hospital readmissions of older adults	74
Correction: Prevention at home in older persons with (pre-)frailty: analysis of participants’ recruitment and characteristics of the randomized controlled PromeTheus trial	72
Age and waist circumference as key determinants of postoperative thrombosis and squatting recovery after unicompartmental knee arthroplasty	67
Management of the vaccination campaign in a population of frail older outpatients affected by cognitive or endocrinological conditions: a pilot study in Italy	66
Concurrent and discriminant validity and reliability of an Android App to assess time, velocity and power during sit-to-stand test in community-dwelling older adults	61
Fish oil administration combined with resistance exercise training improves strength, resting metabolic rate, and inflammation in older adults	48
Fighting social isolation in times of pandemic COVID-19: the role of video calls for older hospitalized patients	46
Analysis of risk factors affecting long-term survival in elderly patients with advanced gastric cancer	45
The effects of transcranial direct current stimulation on cognitive function for mild cognitive impairment: a systematic review and meta-analysis of randomized controlled trials	43
Dysmagnesemia with acute kidney injury among older adults: clinical characteristics and prognostic importance	43
Pan-immune inflammation value; a novel biomarker reflecting inflammation associated with frailty	39
Admission reasons, procedures, and mortality of elderly patients in CICU: the SAGE-CICU study (study on acute gaps in the elderly - cardiac intensive care unit)	37
Pain: its prevalence and correlates among the oldest old	36
Relationships between non-communicable disease, social isolation and frailty in community dwelling adults in later life: findings from the Hertfordshire Cohort Study	34
Establishing an optimal diagnostic criterion for respiratory sarcopenia using peak expiratory flow rate	34
Social network and the risk for developing mild cognitive impairment and dementia among older adults	33
Ultrasound- and clinical-defined disease activities are associated with altered bone microarchitecture and lower bone mineral density in patients with rheumatoid arthritis	33
Investigation of nutrition status and analysis of 180-day readmission factors in elderly hospitalized patients with COPD	32
Association of handgrip strength and risk of cardiovascular disease: a population-based cohort study	32
Predictors of the onset of low handgrip strength in Europe: a longitudinal study of 42,183 older adults from 15 countries	31
Remimazolam versus propofol for postoperative delirium prevention in geriatric surgery: A systematic review and meta-analysis of randomized controlled trials	30

Sex‑specific effects of aging and glycemic control on the association of possible sarcopenia in older adults with type 2 diabetes: a cross-sectional study	30
Urban health inequities and healthy longevity: traditional and emerging risk factors across the cities and policy implications	28
Association between high-sensitivity C-reactive protein, cystatin C and all-cause mortality in middle-aged and elderly participants with sarcopenia	28