OOIR: Observatory of International Research

Papers

(The H4-Index of Aging Clinical and Experimental Research is 31. 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 2022-01-01 to 2026-01-01.)

Article	Citations
The effect of treatment strategy on long-term follow-up results in patients with nonvalvular atrial fibrillation in Turkey: AFTER-2 subgroup analysis	162
Malnutrition in COVID-19 survivors: comment	99
Correction: Prevention at home in older persons with (pre-)frailty: analysis of participants’ recruitment and characteristics of the randomized controlled PromeTheus trial	92
The effects of transcranial direct current stimulation on cognitive function for mild cognitive impairment: a systematic review and meta-analysis of randomized controlled trials	91
Associations between sarcopenia and its developed status with chronic lung disease in the middle-aged and older Chinese people	83
Determining clinically meaningful change: minimal clinically important difference for common depression scales in older adults with parkinson’s disease	81
Use of bioelectrical impedance analysis in centenarians: a systematic review	63
Age and waist circumference as key determinants of postoperative thrombosis and squatting recovery after unicompartmental knee arthroplasty	56
Investigation of nutrition status and analysis of 180-day readmission factors in elderly hospitalized patients with COPD	54
Association between high-sensitivity C-reactive protein, cystatin C and all-cause mortality in middle-aged and elderly participants with sarcopenia	52
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)	51
Ultrasound- and clinical-defined disease activities are associated with altered bone microarchitecture and lower bone mineral density in patients with rheumatoid arthritis	50
Fish oil administration combined with resistance exercise training improves strength, resting metabolic rate, and inflammation in older adults	44
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	43
Analysis of risk factors affecting long-term survival in elderly patients with advanced gastric cancer	41
Cognitive training with adaptive algorithm improves cognitive ability in older people with MCI	39
Fighting social isolation in times of pandemic COVID-19: the role of video calls for older hospitalized patients	39
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	39
Predictors of the onset of low handgrip strength in Europe: a longitudinal study of 42,183 older adults from 15 countries	38
Establishing an optimal diagnostic criterion for respiratory sarcopenia using peak expiratory flow rate	36
Association of handgrip strength and risk of cardiovascular disease: a population-based cohort study	36
Pain: its prevalence and correlates among the oldest old	35
Muscle strength and the risk of Multimorbidity in Middle-aged and older Chinese adults: A prospective cohort study	35
New horizons in the analysis of hospital readmissions of older adults	35
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

Urban health inequities and healthy longevity: traditional and emerging risk factors across the cities and policy implications	34
Dysmagnesemia with acute kidney injury among older adults: clinical characteristics and prognostic importance	34
Inflammation, mitochondrial dysfunction and physical performance: a possible association in older patients with persistent atrial fibrillation—the results of a preliminary study	32
Remimazolam versus propofol for postoperative delirium prevention in geriatric surgery: A systematic review and meta-analysis of randomized controlled trials	31
Social network and the risk for developing mild cognitive impairment and dementia among older adults	31
Acetyl-cholinesterase-inhibitors reconsidered. A narrative review of post-marketing studies on Alzheimer’s disease	31