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 2021-07-01 to 2025-07-01.)

Article	Citations
Is there a relationship between ACTN3 R577X gene polymorphism and sarcopenia?	166
Investigation of nutrition status and analysis of 180-day readmission factors in elderly hospitalized patients with COPD	158
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	130
The effect of treatment strategy on long-term follow-up results in patients with nonvalvular atrial fibrillation in Turkey: AFTER-2 subgroup analysis	86
Malnutrition in COVID-19 survivors: comment	74
Use of bioelectrical impedance analysis in centenarians: a systematic review	72
New horizons in the analysis of hospital readmissions of older adults	71
Correction: Prevention at home in older persons with (pre-)frailty: analysis of participants’ recruitment and characteristics of the randomized controlled PromeTheus trial	70
Pan-immune inflammation value; a novel biomarker reflecting inflammation associated with frailty	64
Pain: its prevalence and correlates among the oldest old	64
The effects of transcranial direct current stimulation on cognitive function for mild cognitive impairment: a systematic review and meta-analysis of randomized controlled trials	56
Cognitive training with adaptive algorithm improves cognitive ability in older people with MCI	52
Age and waist circumference as key determinants of postoperative thrombosis and squatting recovery after unicompartmental knee arthroplasty	48
Fish oil administration combined with resistance exercise training improves strength, resting metabolic rate, and inflammation in older adults	46
Fighting social isolation in times of pandemic COVID-19: the role of video calls for older hospitalized patients	43
Analysis of risk factors affecting long-term survival in elderly patients with advanced gastric cancer	41
Dysmagnesemia with acute kidney injury among older adults: clinical characteristics and prognostic importance	39
Establishing an optimal diagnostic criterion for respiratory sarcopenia using peak expiratory flow rate	39
Relationships between non-communicable disease, social isolation and frailty in community dwelling adults in later life: findings from the Hertfordshire Cohort Study	34
Predictors of the onset of low handgrip strength in Europe: a longitudinal study of 42,183 older adults from 15 countries	33
Urban health inequities and healthy longevity: traditional and emerging risk factors across the cities and policy implications	33
Social network and the risk for developing mild cognitive impairment and dementia among older adults	30
Inflammation, mitochondrial dysfunction and physical performance: a possible association in older patients with persistent atrial fibrillation—the results of a preliminary study	29
Ultrasound- and clinical-defined disease activities are associated with altered bone microarchitecture and lower bone mineral density in patients with rheumatoid arthritis	29
Association of handgrip strength and risk of cardiovascular disease: a population-based cohort study	29

Acetyl-cholinesterase-inhibitors reconsidered. A narrative review of post-marketing studies on Alzheimer’s disease	29
Management of the vaccination campaign in a population of frail older outpatients affected by cognitive or endocrinological conditions: a pilot study in Italy	29
Comparison the effect of Otago and chair squat exercises on the fear of falling and the quality of life of the older adults, a clinical trial study	28
Reliability of fr-AGILE tool to evaluate multidimensional frailty in hospital settings for older adults with COVID-19	28