OOIR: Observatory of International Research

Papers

(The H4-Index of Aging Clinical and Experimental Research is 33. 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 2022-08-01 to 2026-08-01.)

Article	Citations
Malnutrition in COVID-19 survivors: comment	251
Association between high-sensitivity C-reactive protein, cystatin C and all-cause mortality in middle-aged and elderly participants with sarcopenia	114
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	109
Associations between sarcopenia and its developed status with chronic lung disease in the middle-aged and older Chinese people	108
New horizons in the analysis of hospital readmissions of older adults	100
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	89
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)	66
Correction: Prevention at home in older persons with (pre-)frailty: analysis of participants’ recruitment and characteristics of the randomized controlled PromeTheus trial	63
Agreement between bioelectrical impedance analysis and equation-derived estimates of appendicular skeletal muscle in acutely hospitalized multiethnic older patients	53
Inflammation, mitochondrial dysfunction and physical performance: a possible association in older patients with persistent atrial fibrillation—the results of a preliminary study	52
Use of bioelectrical impedance analysis in centenarians: a systematic review	48
Impact of high body fat and low muscle mass on bone mineral density in postmenopausal women with type 2 diabetes: A DXA-based cross-sectional study	47
The effect of treatment strategy on long-term follow-up results in patients with nonvalvular atrial fibrillation in Turkey: AFTER-2 subgroup analysis	46
Investigation of nutrition status and analysis of 180-day readmission factors in elderly hospitalized patients with COPD	43
Age and waist circumference as key determinants of postoperative thrombosis and squatting recovery after unicompartmental knee arthroplasty	43
Current use and practices of lung ultrasound in geriatric care: insights from a national survey	42
Ultrasound- and clinical-defined disease activities are associated with altered bone microarchitecture and lower bone mineral density in patients with rheumatoid arthritis	42
The effects of transcranial direct current stimulation on cognitive function for mild cognitive impairment: a systematic review and meta-analysis of randomized controlled trials	42
Cognitive training with adaptive algorithm improves cognitive ability in older people with MCI	42
Cross-sectional and longitudinal associations of activity diversity with physical function in community-dwelling older adults	41
Alcohol use and in-hospital complications in patients aged ≥ 80 years admitted to Internal medicine: a multicentre observational study in Spain	40
Analysis of risk factors affecting long-term survival in elderly patients with advanced gastric cancer	39
Pain: its prevalence and correlates among the oldest old	39
Establishing an optimal diagnostic criterion for respiratory sarcopenia using peak expiratory flow rate	39
Muscle strength and the risk of Multimorbidity in Middle-aged and older Chinese adults: A prospective cohort study	39

Association of handgrip strength and risk of cardiovascular disease: a population-based cohort study	39
Remimazolam versus propofol for postoperative delirium prevention in geriatric surgery: A systematic review and meta-analysis of randomized controlled trials	38
Functional fitness tests and their association with upper-limb isokinetic strength in older adults	36
Current evidence on the core components of the geriatric rehabilitation process: a systematic review	36
Determining clinically meaningful change: minimal clinically important difference for common depression scales in older adults with parkinson’s disease	35
Pan-immune inflammation value; a novel biomarker reflecting inflammation associated with frailty	35
Fish oil administration combined with resistance exercise training improves strength, resting metabolic rate, and inflammation in older adults	35
Intrinsic capacity and comorbidity burden capture distinct but age-driven dimensions of health in older postmenopausal women	34
Management of the vaccination campaign in a population of frail older outpatients affected by cognitive or endocrinological conditions: a pilot study in Italy	33
Dysmagnesemia with acute kidney injury among older adults: clinical characteristics and prognostic importance	33
Acetyl-cholinesterase-inhibitors reconsidered. A narrative review of post-marketing studies on Alzheimer’s disease	33