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20,227 real negative results, null findings, and replication failures · Negative / Null Result Report. Search the index →

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record compiled from open scholarly databases; the abstract is shown in full only where the paper is openly licensed, otherwise a short excerpt under fair use. Classifications are automated and approximate.

Negative / Null Result ReportMedicine

Effective Coverage of Rehabilitation for Adults with Chronic Primary Low Back Pain in Uganda.

De Groote W, Taremwa Y, Duttine A et al. · 2026 · International journal of environmental research and public health

In Uganda, in 2019, 6.8 million people experienced health conditions that are amenable to rehabilitation. This is largely due to musculoskeletal disorders such as low back pain (LBP). Measuring effective coverage of rehabilitation means…

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Negative / Null Result ReportOpen accessMedicine

Awareness of Effective Communication Skills Among Paediatric Dentists in Turkey.

Büyüksefil M, Çimen Ü, Şimşek Derelioğlu S et al. · 2026 · Oral health & preventive dentistry

Purpose Effective communication with paediatric patients is one of the cornerstones of paediatric dentistry. Strong communication skills play a critical role in reducing dental anxiety, enhancing patient satisfaction, and facilitating the…

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Negative / Null Result ReportMedicine

Comparison of effective phacoemulsification times used in cataract surgery between the Veritas Vision System and the Centurion Vision System.

Choi JY, Song WS, Won YK et al. · 2026 · Korean journal of ophthalmology : KJO

Purpose To compare the effective phacoemulsification time used in cataract surgery and postoperative outcomes between the Veritas and the Centurion Vision System. Methods A retrospective analysis was conducted on 90 eyes from 82 patients…

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Negative / Null Result ReportMedicine

Effective population size and N e /N ratio for two populations of Northern chamois (Rupicapra rupicapra) on the edge of the species' distribution range.

Jacobs S, Edelhoff H, Ebert C et al. · 2026 · BMC ecology and evolution

Effective population size (Ne) is a fundamental parameter in conservation genetics, providing relevant information on the adaptability and long-term viability of populations. In contrast, wildlife management strategies, particularly for…

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Negative / Null Result ReportMedicine

Missed Opportunities for Timely Diagnosis and Effective Therapeutic Management of Prolonged Fever: A Case Study of Confirmed Lassa Fever in N'Zérékoré, Guinea, 2022.

Cherif IS, Essis EML, Diallo MA et al. · 2026 · Case reports in infectious diseases

Background Lassa fever is a potentially fatal viral hemorrhagic disease caused by a ribonucleic acid (RNA) virus of the Arenaviridae family, endemic in West Africa. It is highly virulent and contagious in several countries, with a…

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Negative / Null Result ReportOpen accessMedicine

Vessel diameter as a potential predictor of pulsed dye laser response in port wine stain: a retrospective exploratory reflectance confocal microscopy study.

Ran X, Shang Y, Yang X et al. · 2026 · Lasers in medical science

To investigate whether noninvasive reflectance confocal microscopy (RCM)-derived vascular parameters can serve as objective predictors of therapeutic response to pulsed dye laser (PDL) treatment in patients with port wine stain (PWS),…

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Negative / Null Result ReportOpen accessMedicine

The Median Effective Dose of Phenylephrine Infusion for Prevention of Spinal-Induced Hypotension During Cesarean Delivery in the 15° Left-Tilt vs. Supine Positions: A Randomised Control Study.

Yu XQ, Drzymalski DM, Qian J et al. · 2026 · Drug design, development and therapy

Background Left uterine displacement is presumed to decrease vasopressor requirements during cesarean delivery due to decreased aortocaval compression, but studies have been equivocal. Our primary aim was to determine the median effective…

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Negative / Null Result ReportOpen accessMedicine

Drug supply shortages and their perceived consequences for patients: a questionnaire survey of German and Austrian physicians.

Rotter JM, Seifert R · 2026 · European journal of clinical pharmacology

Purpose Drug supply shortages are a recurring issue in developed countries, with consequences for patients even before the COVID-19 pandemic. Questions arise regarding the effectiveness and tolerability of alternative treatments chosen by…

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Negative / Null Result ReportOpen accessMedicine

Pre-TIPS Liver and Spleen Volumetry Are Not Associated With Liver-Related Outcomes After TIPS Placement for Refractory Ascites.

Bedoya JU, Wagner M, Malézieux E et al. · 2026 · Liver international : official journal of the International Association for the Study of the Liver

Background & aims Transjugular intrahepatic portosystemic shunt (TIPS) improves survival in refractory ascites. A careful patient's selection is mandatory as TIPS can lead to complications. Liver volumetry is predictive of outcomes before…

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Negative / Null Result ReportMedicine

Early Endoscopic Retrograde Cholangiopancreatography is Associated With Improved Health Care Resource Utilization in Acute Biliary Pancreatitis Without Cholangitis.

Chu BK, Abdelbaki A, Nikahd M et al. · 2026 · Journal of clinical gastroenterology

Background The optimal timing for endoscopic retrograde cholangiopancreatography (ERCP) in managing uncomplicated acute biliary pancreatitis (ABP) remains unclear. This population-based study assessed the impact of ERCP timing on outcomes…

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Negative / Null Result ReportMedicine

Genetic Association and Clinical Relevance of TNFSF13B/BAFF and PADI4 Polymorphisms in ANCA-Associated Vasculitis: A Case-Control Study with Genetic Model Analysis in Guangxi Population.

Lu J, Huang S, Wei S et al. · 2026 · Genes

Objective: TNFSF13B , which encodes B-cell-activating factor ( BAFF ) and peptidylarginine deiminase 4 ( PADI4 ), plays crucial roles in the pathogenesis of ANCA-associated vasculitis (AAV). This study investigated the associations of…

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Negative / Null Result ReportOpen accessMedicine

No benefit of adding glucocorticoids to maintenance treatment in reducing the risk of major relapses in ANCA-associated vasculitis: real life data from a longitudinal cohort study.

Chavatza K, Gialouri CG, Drougkas K et al. · 2026 · RMD open

Objective To examine the role of low-dose glucocorticoids (GCs) in major relapse, hospitalisation and damage accumulation risk during maintenance therapy in anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAVs). Methods…

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Negative / Null Result ReportMedicine

Replacing stationary time or light physical activity with moderate-to-vigorous physical activity is associated with improved metabolic health in adults with or at risk of knee osteoarthritis.

Halliwell C, Courish M, Moyer R et al. · 2026 · Clinical rheumatology

Background Individuals with knee osteoarthritis are at an increased risk of poor metabolic health. We tested if cross-sectionally replacing stationary time with light or moderate-to-vigorous physical activity would be associated with lower…

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Negative / Null Result ReportOpen accessMedicine

Maternal Health and Sociodemographic Characteristics Influence Infant Growth to 24 Months in the Tunza Mwana Cohort: A Prospective Cohort Study.

Hendrixson DT, Tiwari R, James P et al. · 2026 · Maternal & child nutrition

Upstream pathways influencing child growth are complex. Weight-for-age z-score (WAZ) reflects both ponderal and linear growth and can identify children at high mortality risk. Using data from a prospective cohort of 326 mother-child pairs…

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Negative / Null Result ReportMedicine

Associations between sick leave during pregnancy and after childbirth and future labour force participation: a Dutch cohort study.

Frijmersum ZZ, Van Der Meij E, Huirne JA et al. · 2026 · Occupational and environmental medicine

Objectives Women's labour force participation often declines after childbirth, but the role of sick leave during pregnancy and after childbirth in sustained employment remains unclear. This study examined: (1) the association between sick…

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Negative / Null Result ReportMedicine

Sociodemographic factors shaping knowledge-attitude-behaviour pathways in postpartum fall prevention.

Yang L, Xu L · 2026 · Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology

Background Postpartum falls threaten maternal and infant safety, yet evidence on postpartum women's fall-prevention knowledge, attitude, and behaviour (KAB) and their sociodemographic correlates remains limited. This study examined…

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Negative / Null Result ReportMedicine

Extracellular Vesicles Reflect Thrombo-Inflammatory, Endothelial and Tissue-Remodelling Changes in Cirrhosis.

Campello E, Zanetto A, Ferdinande K et al. · 2026 · Liver international : official journal of the International Association for the Study of the Liver

Background and aims Cirrhosis is characterized by progressive immune dysregulation, endothelial dysfunction, and haemostatic imbalance. Circulating extracellular vesicles (EVs) have emerged as potential biomarkers reflecting these…

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