OOIR: Observatory of International Research

Papers

(The H4-Index of Aging Clinical and Experimental Research is 32. 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 2022-05-01 to 2026-05-01.)

Article	Citations
Malnutrition in COVID-19 survivors: comment	159
Associations between sarcopenia and its developed status with chronic lung disease in the middle-aged and older Chinese people	105
Age and waist circumference as key determinants of postoperative thrombosis and squatting recovery after unicompartmental knee arthroplasty	104
Investigation of nutrition status and analysis of 180-day readmission factors in elderly hospitalized patients with COPD	90
Acetyl-cholinesterase-inhibitors reconsidered. A narrative review of post-marketing studies on Alzheimer’s disease	83
Pan-immune inflammation value; a novel biomarker reflecting inflammation associated with frailty	76
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)	64
Fighting social isolation in times of pandemic COVID-19: the role of video calls for older hospitalized patients	55
Alcohol use and in-hospital complications in patients aged ≥ 80 years admitted to Internal medicine: a multicentre observational study in Spain	53
Association between high-sensitivity C-reactive protein, cystatin C and all-cause mortality in middle-aged and elderly participants with sarcopenia	52
Ultrasound- and clinical-defined disease activities are associated with altered bone microarchitecture and lower bone mineral density in patients with rheumatoid arthritis	44
Current use and practices of lung ultrasound in geriatric care: insights from a national survey	41
Correction: Prevention at home in older persons with (pre-)frailty: analysis of participants’ recruitment and characteristics of the randomized controlled PromeTheus trial	41
Use of bioelectrical impedance analysis in centenarians: a systematic review	41
Urban health inequities and healthy longevity: traditional and emerging risk factors across the cities and policy implications	39
Predictors of the onset of low handgrip strength in Europe: a longitudinal study of 42,183 older adults from 15 countries	39
Association of handgrip strength and risk of cardiovascular disease: a population-based cohort study	39
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	38
Muscle strength and the risk of Multimorbidity in Middle-aged and older Chinese adults: A prospective cohort study	37
Analysis of risk factors affecting long-term survival in elderly patients with advanced gastric cancer	37
Establishing an optimal diagnostic criterion for respiratory sarcopenia using peak expiratory flow rate	36
Determining clinically meaningful change: minimal clinically important difference for common depression scales in older adults with parkinson’s disease	36
The effect of treatment strategy on long-term follow-up results in patients with nonvalvular atrial fibrillation in Turkey: AFTER-2 subgroup analysis	35
New horizons in the analysis of hospital readmissions of older adults	34
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	34

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	33
Management of the vaccination campaign in a population of frail older outpatients affected by cognitive or endocrinological conditions: a pilot study in Italy	33
Pain: its prevalence and correlates among the oldest old	33
Fish oil administration combined with resistance exercise training improves strength, resting metabolic rate, and inflammation in older adults	33
Agreement between bioelectrical impedance analysis and equation-derived estimates of appendicular skeletal muscle in acutely hospitalized multiethnic older patients	33
The effects of transcranial direct current stimulation on cognitive function for mild cognitive impairment: a systematic review and meta-analysis of randomized controlled trials	33
Inflammation, mitochondrial dysfunction and physical performance: a possible association in older patients with persistent atrial fibrillation—the results of a preliminary study	32