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Nevin Manimala Statistics

Serum Albumin on Admission: A Prognostic Marker of Morbidity and Mortality in Burns? A Systematic Review and Meta-Analysis

J Burn Care Res. 2026 Jun 11:irag092. doi: 10.1093/jbcr/irag092. Online ahead of print.

ABSTRACT

Albumin is essential for maintaining oncotic pressure and vascular integrity. In burn injuries, increased capillary permeability leads to hypoalbuminaemia, which is a recognised marker of poor outcomes in critical illness. However, its prognostic value in acute burn care remains underexplored. This study evaluated the prognostic value of admission serum albumin in predicting mortality, acute kidney injury (AKI), hospital and intensive care unit (ICU) length of stay, ventilatory requirements, sepsis, and pulmonary infection in burn patients. A systematic search of PubMed, Scopus, Cochrane Library, Web of Science, MEDLINE, and Embase was conducted. Of 5,587 studies screened, 19 were included in the systematic review and 9 in the meta-analysis. Statistical analysis was performed using RStudio, with pooled outcomes reported as odds ratios (OR), standardised mean differences (SMD), and hierarchical summary receiver operating characteristic (HSROC) curves. Heterogeneity was assessed using Cochran’s Q, I2, and Tau.2 Hypoalbuminaemia on admission was significantly associated with increased mortality during admission (OR 9.51; 95%CI 3.04-29.78; I2 49.3%). Admission hypoalbuminaemia was also associated with an increased risk of AKI (OR 2.83; 95%CI 2.49-3.22; I2 0%). Evidence for other outcomes was limited and heterogeneous. Admission serum albumin appears to be a valuable prognostic marker in burn patients, particularly for mortality and AKI. Further research is required to support its integration into burn-specific risk models, characterise albumin trends within the first 24 hours post-injury, and establish optimal cut-off values.

PMID:42275083 | DOI:10.1093/jbcr/irag092

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Nevin Manimala Statistics

Clinically effective child change in family-based behavioral treatment for pediatric obesity: An individual participant mega-analysis

Health Psychol. 2026 Jun 11. doi: 10.1037/hea0001612. Online ahead of print.

ABSTRACT

OBJECTIVE: Family-based behavioral treatment (FBT) is an evidence-based treatment that has shown statistically significant short- and long-term outcomes for children. However, statistical and clinical significance are different ways to study the impact of a treatment, and recent data have indicated the degree of body mass index z-score (zBMI) change that prevents the development of cardiometabolic disease.

METHOD: We conducted a mega-analysis using an individual participant database extracted from 16 randomized controlled studies (N = 1,098) on FBT for 6-12-year-old children with overweight or obesity and a participating parent with overweight and obesity that had at least 1-year follow-up. These data were used to evaluate clinical effectiveness based on -0.25 zBMI change and what percentage of children showed reversal of obesity at 6-, 12-, 24-, 60-, and 120-month follow-up. Analyses also examined whether age and sex were predictors of zBMI change.

RESULTS: Across the combined databases, 70%, 61%, 52%, 54%, and 68% met the -0.25 zBMI criteria, and 29%, 27%, 23%, 46%, and 48% reversed their obesity status at 6, 12, 24, 60, and 120 months, respectively. Age was a reliable predictor of change, with younger children showing greater change up to the 24-month follow-up.

CONCLUSIONS: These results suggest FBT is associated with clinical effectiveness, with long-term effects stable or improving over time. These data support the utility of FBT, and providing data on the clinical effectiveness of pediatric obesity treatment complements traditional reporting of statistical significance of FBT to support the clinical utility of FBT. (PsycInfo Database Record (c) 2026 APA, all rights reserved).

PMID:42275030 | DOI:10.1037/hea0001612

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Nevin Manimala Statistics

Analysis of real word safety benefits of pedestrian autonomous emergency braking (PAEB) for pedestrians, cyclists and motorcyclists

Traffic Inj Prev. 2026 Jun 11:1-7. doi: 10.1080/15389588.2026.2673090. Online ahead of print.

ABSTRACT

OBJECTIVE: Autonomous Emergency Braking (AEB) fitted to vehicles has proven road safety benefits in terms of preventing collisions with other vehicles. AEB with pedestrian detection (PAEB) extends this capability to protect vulnerable road users: the current paper evaluates these safety benefits in comparison with AEB without pedestrian detection and vehicles without any AEB.

METHODS: We analyzed data from Australian and New Zealand crashes involving injury over the period 2016-2023. The target crash types for PAEB analyzed either involved a vulnerable road user or the vehicle was rear-ended by another vehicle. Vehicles listed in Redbook (which provides vehicle specification information to assist Australian vehicle purchasers) with the feature “Control – Pedestrian Avoidance with Braking” were classed as having PAEB; for other vehicles, “Collision Mitigation – Forward (High speed)” and “Collision Mitigation – Forward (Low speed)” identified other forms of AEB. Using an induced exposure approach, crash rates associated with the safety technology fitted were estimated.

RESULTS: Controlling for jurisdiction, speed limit area, vehicle market group, driver age group and sex, weather, day/night and year of crash, there was a 17% reduction (95% CI 5% to 27%) in the rate of pedestrian or cyclist collisions associated with vehicles equipped with PAEB relative to vehicles without any AEB system; for vehicles equipped with AEB without pedestrian detection, there was no reduction in the rate of pedestrian or cyclist collisions. For collisions with motorcycles, the associated benefits were smaller: compared to vehicles with no AEB system, there was a statistically significant 11% reduction associated with PAEB (95% CI 0% to 21%) and a non-significant 8% reduction (95% CI an increase of 4% to a decrease of 19%) associated with other AEB system fitment. There were insufficient cyclists in the data to estimate benefits specifically for cyclists but there was no evidence that the associated benefit was any less than for pedestrians. The safety benefits for vulnerable road users associated with AEB with pedestrian detection were estimated to be higher at nighttime, contrary to some findings in other studies.

CONCLUSIONS: The safety benefits associated with PAEB for vulnerable road users are significantly greater than AEB without pedestrian detection, and this analysis of real-world crash outcomes shows these benefits extend to the protection of motorcyclists.

PMID:42275024 | DOI:10.1080/15389588.2026.2673090

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Nevin Manimala Statistics

Structured hierarchical regression for Likert scales including dispersion effects: Models and fitting tools

Psychol Methods. 2026 Jun 11. doi: 10.1037/met0000843. Online ahead of print.

ABSTRACT

Hierarchical models for ordinal responses, in which responses are modeled successively by partitioning groups of categories into finer subgroups are proposed. These partitions reflect conceptually meaningful distinctions among categories. Such models are particularly well suited for Likert items, which typically differentiate between disagreement, agreement, and, in some cases, a neutral category. The hierarchical framework offers a parsimonious representation of predictor effects and often provides a better fit than traditional ordinal models. It also enables the investigation of dispersion effects, that is, systematic tendencies of respondents to prefer either extreme categories or middle categories, independently of the substantive content. In addition to specialized fitting tools for ordinal models, we provide a more general procedure that can be used to fit any hierarchically structured model. The practical use of these methods is demonstrated through illustrative examples. (PsycInfo Database Record (c) 2026 APA, all rights reserved).

PMID:42275018 | DOI:10.1037/met0000843

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Nevin Manimala Statistics

Robust Metabolomics Data Normalization across Scales and Experimental Designs

Anal Chem. 2026 Jun 11. doi: 10.1021/acs.analchem.5c06841. Online ahead of print.

ABSTRACT

Metabolomics studies employing liquid chromatography-mass spectrometry are affected by signal drift and batch effects, introducing technical variance that impedes biological knowledge discovery. Quality control (QC) sample-based normalization strategies are widely implemented but remain vulnerable to outliers, thereby reducing normalization performance. We introduce rLOESS, rGAM, and tGAM, three robust normalization methods that improve resistance to outliers by downweighting or accommodating them. Leveraging additive models, the rGAM and tGAM methods allow flexible nonlinear modeling, differential sample weighting, and data-driven QC representativeness evaluation. Implementations of these methods are gathered in the Metanorm R package, integrating robust normalization with visualization for performance verification while supporting efficient parallel processing. In in silico and/or experimental data sets, the robust methods, relative to several popular existing strategies, improved replicate concordance and reduced drift and batch effects. The robust methods, with improved recovery of the underlying signal demonstrated in simulation, produced distinct differential abundance results, highlighting the impact of normalization on downstream statistical inference. Overall, tGAM-based normalization suggested the best performance across scenarios and is proposed as the default choice. Metanorm is versatile, supporting normalization in metabolomics studies across scales and experimental setups. Metanorm is freely available at https://github.com/UGent-LIMET/Metanorm.

PMID:42275003 | DOI:10.1021/acs.analchem.5c06841

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Nevin Manimala Statistics

Prevalence and Associated Factors of Gambling Among High School Students in a Portuguese City

J Gambl Stud. 2026 Jun 11. doi: 10.1007/s10899-026-10517-z. Online ahead of print.

ABSTRACT

Adolescent gambling has become increasingly prevalent with the rise of online platforms and the normalization of gambling behaviors. This study aimed to estimate the past-year prevalence of gambling among high school students in Viana do Castelo, Portugal, to investigate sex-related differences in gambling behavior, and to identify factors associated with gambling. A cross-sectional study was conducted in 2024 with 1064 students from the three existing high schools. Participants completed an anonymous online questionnaire covering sociodemographic data, gambling in the past 12 months and its characterization, substance use, and environmental influences. The primary dependent variable was past-year gambling, coded dichotomously as yes/no. Chi-square tests and logistic regression were used to assess associations between past-year gambling and the other variables. The weighted past-year prevalence of gambling was 35.0%, higher among males. Statistically significant sex differences emerged in gambling type, companions, expenditure, frequency, and mode of access. Compared with females, males were more likely to engage in sports betting and poker, gamble alone or with friends, spend more money, gamble more frequently, and gamble online only or both online and land-based. Multivariable analysis showed that being male, attending public schools, early tobacco initiation, frequent consumption of spirit drinks, and knowing others who gamble were independently associated with gambling in the past 12 months. Gambling is widespread among adolescents in this sample, with distinct sex-related patterns and strong social influences. Early prevention strategies should address both individual behaviors and broader social contexts. Longitudinal studies are needed to understand causal pathways and inform targeted interventions.

PMID:42274980 | DOI:10.1007/s10899-026-10517-z

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Nevin Manimala Statistics

Deriving a Korean SF-6Dv2 Value Set Using a Discrete Choice Experiment with Duration

Pharmacoeconomics. 2026 Jun 11. doi: 10.1007/s40273-026-01629-w. Online ahead of print.

ABSTRACT

OBJECTIVES: This study aimed to derive a Korean value set for the SF-6Dv2.

METHODS: Following an adapted international protocol, an online discrete choice experiment with duration (DCETTO) was conducted among 3800 Korean adults representative of the general population. The experimental design included three components: choice sets from a Core Module, choice sets pairing commonly occurring health states (Common Module), and triplet choice sets with death options (Triplet Module). Preferences were analyzed using conditional and mixed logit models.

RESULTS: Model 9 (based on the Core Module) was selected as the preferred model for its superior logical consistency, including monotonicity of coefficients and avoidance of counterintuitive results. The pain dimension had the largest utility decrement at its worst level (- 0.496), followed by physical functioning (- 0.480), mental health (- 0.391), social functioning (- 0.329), vitality (- 0.178), and role limitations (- 0.138). The utility for the worst possible health state (556555) was estimated at – 1.012, with 31.7% of all states valued as worse than dead. Significant preference heterogeneity was observed across dimensions, indicating substantial individual-level variation in health state valuations. While including death comparisons (Triplet Module) produced less-negative worst-state utilities, it was not recommended as the primary value set due to its non-efficient experimental design and logical monotonicity issues necessitating greater level collapsing.

CONCLUSION: We derived the first Korean SF-6Dv2 value set. This enables quality-adjusted life-year calculations from both SF-36v2 and SF-6Dv2 data, supporting economic evaluations in Korea.

PMID:42274976 | DOI:10.1007/s40273-026-01629-w

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Nevin Manimala Statistics

Numerical investigation of thermal performance in unsteady Casson hybrid nanofluid flow across rotating disks under variable Darcy resistance and Joule heating

Discov Nano. 2026 Jun 11;21(1):257. doi: 10.1186/s11671-026-04713-4.

ABSTRACT

The findings of this study have significant implications for a wide range of engineering applications that include cooling of rotating disk surfaces, the optimization of chemical reactors, and the design of filtration systems, where the synergistic use of variable porous media and hybrid nanofluids offers a pathway to enhanced performance. Keeping these substantial applications in perspective, the present study examines the optimization of thermal transport in an unsteady Casson hybrid nanofluid flowing through a variable porous medium between two rotating disks. The flow is influenced by inertial effects, Joule heating, viscous dissipation, and time-dependent heat generation and absorption effects. The modeled equations are solved through the Homotopy Analysis Method (HAM) in dimensionless form. It is deduced in this investigation that axial velocity [Formula: see text] augments with growth in stretching parameter of the lower disk [Formula: see text], Reynolds number [Formula: see text] and suction factor [Formula: see text] while declines with augmentation in stretching parameter of the upper disk [Formula: see text]. Radial velocity [Formula: see text] augments on the interval [Formula: see text] and it declines on the range [Formula: see text] with growth in the stretching parameter of the lower disk [Formula: see text]. Tangential velocity [Formula: see text] augments with growth in suction parameter [Formula: see text] and angular velocity at the lower disk [Formula: see text], while it declines with growth in Reynolds numbe r[Formula: see text]. Thermal profiles [Formula: see text] augment with growth in Eckert number [Formula: see text], heat source parameter [Formula: see text], suction parameter r[Formula: see text] and stretching parameter of lower and upper disks [Formula: see text]. A close agreement is observed between the HAM solutions and the numerical Runge-Kutta shooting results, confirming the accuracy, reliability, and validity of the HAM-based solutions. For variations in Reynolds number in the range [Formula: see text] the percentage error in [Formula: see text] between HAM and Runge-Kutta shooting results are 0.0%, 2.4 × 10– 5%, 2.2 × 10– 5% and 1.5 × 10– 5%. Moreover, for the same range of [Formula: see text] the percentage error in [Formula: see text] between these results are 0.05 × 10– 5%, 1.3 × 10– 5%, 1.5 × 10– 5% and 1.7 × 10– 5%.

PMID:42274958 | DOI:10.1186/s11671-026-04713-4

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Nevin Manimala Statistics

Language, Immigration, Race and Cognitive Health: Kaiser Healthy Aging and Diverse Life Experiences (KHANDLE) Study

J Racial Ethn Health Disparities. 2026 Jun 11. doi: 10.1007/s40615-026-03031-w. Online ahead of print.

ABSTRACT

BACKGROUND: Few large cohort studies of dementia have successfully recruited cohorts that reflect the diversity of the aging population. We aim to describe the complex racial/ethnic, immigration, linguistic histories of a United States (US)-based cohort to describe the complexity of operationalizing identity and describing health disparities.

METHODS: The Kaiser Healthy Aging and Diverse Life Experiences (KHANDLE) Study enrolled 1,892 participants ages 65 and older. Participants self-reported race/ethnicity (Asian, Black, Latino, White, Native American), immigration status (US-born/non-US-born), and languages spoken (monolingual, bilingual, and unascertained) via questionnaire. Participants were screened using NIH Toolbox and those suspected of impairment underwent a neurological exam. Descriptive statistics included means, standard deviations, counts, and percentages of cohort demographics across race/ethnicity, immigration status, and language as well as by cognitive status.

RESULTS: Participants had a mean age of 76 (SD ± 7) and 60% were women. Approximately equal proportions of Asian (24%), Black (26%), Latino (22%), Native American (0.1%), and White (29%) participants were enrolled. 46% of participants were monolingual, 31% bilingual, and 23% unascertained. Of the 25% of participants who reported being non-US-born, most identified as Asian or Latino. Bilingualism was most common among non-US-born men and those reporting multiple racial/ethnic identities. Alcohol consumption, cigarette use, and self-rated health varied across language, race/ethnicity, and immigration status. Cognitive impairment was most prevalent among U.S.-born Black and non-U.S.-born Latino participants.

CONCLUSION: Highlighting the diversity of older Americans illustrates the need for recruitment of populations that reflect the cultural and linguistic diversity of older adults in the US at risk of dementia.

PMID:42274946 | DOI:10.1007/s40615-026-03031-w

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Nevin Manimala Statistics

Women’s perspectives regarding in vitro fertilization as a conception option at the primary healthcare level in Ekiti State

Res Health Serv Reg. 2026 Jun 11;5(1):9. doi: 10.1007/s43999-026-00093-5.

ABSTRACT

INTRODUCTION: Infertility remains a significant reproductive health challenge globally. In vitro fertilization (IVF), the most widely used form of assisted reproductive technology (ART), presents an opportunity for overcoming childlessness. Knowledge, perception and attitudes toward IVF remain underexplored, especially in rural settings in Nigeria. This study assessed these aspects among women of childbearing age, especially at the primary healthcare level.

METHODS: This study employed a descriptive cross-sectional survey conducted among 222 women of childbearing age, selected from health centers in Ado Ekiti, Ekiti State, via simple random sampling. Data collected through questionnaires were analyzed using SPSS version 26, applying both descriptive and inferential statistics. The significance level was set at p < 0.05.

RESULTS: Most respondents (63.1%) were aged 20-29 years, with 55.9% employed and 60.8% identifying as Yoruba. Their knowledge of IVF was high, with an average score of 3.06. Overall perception of IVF was favorable (mean = 2.89), and attitudes towards IVF were positive (mean = 3.08). Moderate, statistically significant positive correlation were observed between knowledge and perception (r = 0.520, p < 0.05) and between knowledge and attitude (r = 0.606, p < 0.05).

CONCLUSION: Women of childbearing age in Ado Ekiti exhibited high awareness, positive perceptions, and favorable attitudes toward in vitro fertilization. However, cost, accessibility, and emotional concerns remain major obstacles. It was recommended to advocate to government and stakeholders for affordable, accessible in vitro fertilization services to increase uptake and acceptance.

PMID:42274942 | DOI:10.1007/s43999-026-00093-5