11,417 real negative results, null findings, and replication failures in Medicine · 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.
Ling W, Li H, Liu L et al. · 2025 · Open heart
Objective To evaluate the association between β-blocker use and all-cause mortality in a real-world cohort of patients with myocardial infarction (MI). Methods This study included 2308 patients with MI from the National Health and…
View details →Yoshikawa N, Masaki H · 2021 · Frontiers in psychology
Previous studies have shown that viewing cute pictures leads to performance improvement in a subsequent fine motor task. We examined the beneficial effects of viewing cute pictures in a more complex sporting skill (i.e., basketball free…
View details →Orr SL, Hershey AD, Kurowski BG et al. · 2026 · Neurology. Genetics
Background and objectives To examine the association between genetic risk of migraine and post-traumatic headache (PTH) in children. Methods This is a secondary analysis of a cohort study that recruited children aged 8-17 years within 48…
View details →Cheng T, Zhang HY, Wang TR et al. · 2025 · Scientific reports
This study uses Mendelian randomization (MR) to investigate the potential causal relationships between viral infections, including Epstein-Barr virus (EBV), human immunodeficiency virus (HIV), SARS-CoV-2, cytomegalovirus (CMV), human…
View details →Diarra NH, Dicko Y, Roschnik N et al. · 2025 · Maternal & child nutrition
A cluster-randomised controlled trial was conducted in 60 communities in southern Mali to evaluate the impact of micronutrient powders (MNP) combined with seasonal malaria chemoprevention (SMC) on anaemia (primary endpoint), Plasmodium…
View details →Mitchell AP, Dusetzina SB, Mishra Meza A et al. · 2025 · BMJ (Clinical research ed.)
Objective To estimate the association between the billing (profit) margin and clinical benefit of cancer treatments and use by oncologists. Design Retrospective population based cohort study SETTING: Population based sample using…
View details →Bierut L, Biroli P, Galama TJ et al. · 2023 · Journal Of Economic Psychology
Smoking is one of the leading causes of preventable disease and death in the U.S., and it is strongly influenced both by genetic predisposition and childhood adversity. Using polygenic indices (PGIs) of predisposition to smoking, we…
View details →Sumner P, Powell G, Price A et al. · 2026 · Imaging neuroscience (Cambridge, Mass.)
Many people experience aversive hypersensitivity (discomfort/visual stress) to stimuli such as bright lights, striped patterns, strobing, motion, or complex visual scenes such as supermarkets. Such sensory hypersensitivity is often…
View details →Stevens VL, Priest J, Wilkerson J et al. · 2026 · American journal of epidemiology
Weight cycling, when weight is repeatedly lost intentionally and then regained, may perturb biological processes that could influence cancer development. However, results from epidemiologic studies of weight cycling are mixed and provide…
View details →Gershengorn HB, Anesi GL, Liu VX et al. · 2025 · Annals of the American Thoracic Society
Rationale: The association of interprofessional team member workload with intensive care unit (ICU) outcomes is understudied. Objectives: To evaluate the association of patient-to-intensivist ratio (PIR), patient-to-respiratory therapist…
View details →Jaraki D, Dorn A, Eckert T et al. · 2025 · Cureus
Background Intracranial atherosclerotic disease (ICAD) is a leading cause of ischemic stroke worldwide, with endovascular interventions such as angioplasty and stenting facing scrutiny due to variable safety outcomes in prior studies.…
View details →Zhu R, Huo Z, Li Y et al. · 2026 · Healthcare (Basel, Switzerland)
Background : Doctors have made increasing use of artificial intelligence-based clinical decision support systems in recent years in eastern China, but far less so in poorer western China, where hospitals with less access to specialized…
View details →Bai Y, Cao P, Kim C et al. · 2025 · The International journal on drug policy
Background In October 2018, Canada legalized recreational cannabis, with Ontario distributing retailer licenses through a lottery system in 2019. This study investigates the impact of recreational cannabis retailer allocation on emergency…
View details →Wehrman J · 2020 · Attention, perception & psychophysics
The oddball duration illusion describes how a rare or nonrepeated stimulus is perceived as lasting longer than a common or repeated stimulus. It has been argued that the oddball duration illusion could emerge because of an earlier…
View details →Wołoszyn K, Hohol M, Winkielman P · 2026 · Scientific reports
The embodied simulation approach predicts that restricting facial movements disrupts emotion recognition. Such effects have been reported for facial and whole-body emotional expressions, but findings remain inconsistent, and it is unclear…
View details →Brown CRH · 2026 · Psychological research
When stimuli are retained in visual working memory (VWM) external stimuli which overlap with this representation capture attention when performing a visual task. It has not been determined, however, whether this mechanism can partly…
View details →Palgi S, Bester-Arest T, Faivre N et al. · 2025 · Neuroscience of consciousness
The scope of unconscious integration is widely debated. Here, we examined this question, focusing specifically on deciphering the relations between two associatively related objects, in a set of five behavioral and electrophysiological…
View details →Song Z, Ding M, Zang Q et al. · 2025 · BMC cancer
Background Reproductive factors significantly impact the incidence of breast cancer (BC), a concerning trend. This study aims to reassess this association and provide recommendations for fertility policies to delay the onset of BC. Methods…
View details →Boran E, Stieglitz L, Sarnthein J · 2021 · Frontiers in human neuroscience
Rationale : High-frequency oscillations (HFOs) in intracranial EEG (iEEG) are used to delineate the epileptogenic zone during presurgical diagnostic assessment in patients with epilepsy. HFOs are historically divided into ripples (80-250…
View details →Zheng W, Liu X · 2025 · Behavioral sciences (Basel, Switzerland)
Metaphorical instructions are widely used in motor skill learning, yet their impact on learning and memory processes in children remains underexplored. This study examined whether metaphor-based language could enhance children's…
View details →Avalos C, Shryane N, Wang Y · 2026 · Nutrients
Objective This study investigates the association between consumers' perceived readability of Multiple Traffic Light (MTL) label print size-a theoretical structural gatekeeper for visual salience-and self-reported food consumption…
View details →Aikawa T, Mori Y, Kuno T et al. · 2026 · JACC. Advances
Background In April 2020, the facility criteria for using rotational atherectomy (RA) during percutaneous coronary intervention (PCI) were updated in Japan. Board-certified PCI operators are now permitted to perform RA during PCI in…
View details →Lupien SJ, Roy DC, Raymond C et al. · 2020 · Development and psychopathology
Stress associated with caring for a mentally ill spouse can adversely affect the health status of caregivers and their children. Adding to the stress of caregiving is the stigma often placed against spouses and children of people with…
View details →Rostgaard K, Kristjánsson R, Davidsson O et al. · 2025 · Frontiers in epidemiology
Background The probability of presenting with infectious mononucleosis (IM) upon primary Epstein-Barr virus infection increases dramatically at the start of puberty. Aiming to understand why that is, we assessed whether the number of…
View details →Jackson E, Riley T, Overton PG · 2026 · PloS one
Background Although several effective therapies exist for Attention Deficit Hyperactivity Disorder (ADHD), current pharmaceutical treatment carries a high risk of misuse and high levels of discontinuation, evidencing a need for…
View details →Kim SJ, Shin SH, Byun SW et al. · 2025 · Scientific reports
This study assessed whether resting-state quantitative EEG (qEEG) can differentiate tinnitus laterality under rigorous multiple-comparison control and nested, cross-validated machine learning (ML). We analyzed 210 pre-specified qEEG…
View details →Walasek L, Mullett TL, Stewart N · 2021 · Journal of experimental psychology. General
Walasek and Stewart (2015) demonstrated that loss aversion estimated from fitting accept-reject choice data from a set of 50-50 gambles can be made to disappear or even reverse by manipulating the range of gains and losses experienced in…
View details →Benedetti MH, Lu B, Zhu M · 2024 · Biometrical journal. Biometrische Zeitschrift
A concern surrounding marijuana legalization is that driving after marijuana use may become more prevalent. Survey data are valuable for estimating policy effects, however their observational nature and unequal sampling probabilities…
View details →Jin T, Gebre ST, Miller CJ et al. · 2025 · Journal of the American Chemical Society
Molecular polaritons, formed by coupling molecular electronic or vibrational transitions to photonic modes in microcavities, have gained interest for their potential to influence chemical dynamics. Here, we investigate the effects of…
View details →Oosthuizen MK, Pillay N · 2026 · Developmental psychobiology
Weaning is a stressful stage in the lives of young mammals. Early weaning, in particular, can lead to long-lasting physiological and psychological changes. We investigated the effects of precocial weaning on anxiety, social behavior,…
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