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Nevin Manimala Statistics

A Spanish-Language Patient-Reported Outcome Measure for Trust in Pregnancy Care Clinician

JAMA Netw Open. 2025 Feb 3;8(2):e2460465. doi: 10.1001/jamanetworkopen.2024.60465.

ABSTRACT

IMPORTANCE: Despite the importance of patient trust in health care, there are no patient-reported outcome measures (PROMs) for trust in their clinician that have been developed empirically in Spanish, which is the second most common language in the US.

OBJECTIVE: To develop and validate a Spanish-language PROM for trust in pregnancy care clinician.

DESIGN, SETTING, AND PARTICIPANTS: This cross-sectional study used a national online panel of patients who reported a Spanish language preference and had limited English proficiency and were currently pregnant or had given birth within the 12 months before the survey. Participants resided in the United States, and data were collected from January to May 2024.

EXPOSURES: Participants had clinical interactions during pregnancy and/or postpartum care. Data collected included demographics, Confianza (Trust) Scale candidate items, and 4 measures for concurrent validity evidence: the Trust in Physician Scale (TPS), the Mothers on Respect Index, the Edinburgh Postpartum Depression Scale (EPDS), and the Patient-Reported Outcomes Measurement Information System Global 10.

MAIN OUTCOMES AND MEASURES: The main outcomes were psychometric properties of the Confianza scale and its association with validated scales (validity coefficients). Item response theory (IRT) analyses were conducted to evaluate the psychometric properties of the candidate items, select the best item subset for the Confianza scale, examine its correlation with other measures, and compare scores according to demographic characteristics.

RESULTS: Of the included 204 participants (mean [SD] age, 26 [7] years; 62 participants from South America [30%]; 32 participants from Mexico [16%]), 117 participants were pregnant (57%), and 87 were within 1-year post partum (43%) at the time of survey completion. Four items were removed based on exploratory factor analysis. Using results from IRT analysis on the remaining 12 items, 5 items were selected to represent communication, caring, competency, accompaniment, and overall trust for the final measure. The 5-item Confianza scale had high measurement precision, with reliability above 0.90 across a wide range of the trust continuum. The Confianza scale (mean [SD] score, 21.5 [4.6] out of 25) was positively correlated with the TPS (r = 0.47; 95% CI, 0.36 to 0.57; P < .001) and negatively correlated with the EPDS (r = -0.41; 95% CI, -0.52 to -0.29; P <.001). Higher trust scores were obtained when there was language concordance with clinicians (mean [SD], 23.6 [2.3] vs 20.0 [5.3]; P < .001) and care continuity (mean [SD], 22.3 [3.8] vs 20.9 [5.3]; P = .001).

CONCLUSIONS AND RELEVANCE: In this cross-sectional study of pregnant and postpartum Spanish-speaking individuals, a Spanish-language PROM for trust in pregnancy care clinician had initial validity.

PMID:39964680 | DOI:10.1001/jamanetworkopen.2024.60465

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Tobacco and E-Product Use by US Adults With Disabilities

JAMA Netw Open. 2025 Feb 3;8(2):e2460471. doi: 10.1001/jamanetworkopen.2024.60471.

ABSTRACT

IMPORTANCE: Research on cumulative disabilities and tobacco use in the current tobacco landscape is lacking.

OBJECTIVE: To examine prevalence of tobacco use across cumulative disabilities within and across years among US adults.

DESIGN, SETTING, AND PARTICIPANTS: Representative cross-sectional surveys of the US adult (aged ≥18 years) civilian, noninstitutionalized population from the Population Assessment of Tobacco and Health (PATH) Study were compared across 2013 to 2014 (wave 1), 2016 to 2018 (wave 4), and 2022 to 2023 (wave 7). Age-adjusted estimates and change scores were compared using design-based significance tests. Data were analyzed from November 2023 and April 2024.

MAIN OUTCOMES AND MEASURES: Past 30-day use of tobacco (cigarette, electronic nicotine [e-product], traditional cigar, filtered cigar, cigarillo, pipe, hookah, and smokeless products); disability types (mobility, self-care, independent living, cognitive, hearing, and vision) summed to generate a 4-level cumulative disability measure (0, 1, 2, or ≥3).

RESULTS: In 2013 to 2014, among 32 314 participants at wave 1, 3110 participants were 65 years or older (18.2%), 15 993 (51.9%) were female, 5536 (15.2%) were Hispanic, 4496 (11.2%) were non-Hispanic Black, 19 295 (66.0%) were non-Hispanic White, and 2428 (7.5%) were another non-Hispanic race. A total of 32 314 adults were included in 2013 to 2014, 33 638 in 2016 to 2018, and 30 681 in 2022 to 2023. In 2013 to 2014, any tobacco use prevalence for those with no disabilities was 25.4% (95% CI, 24.7% to 26.1%), while prevalence was 40.2% (95% CI, 38.6% to 41.8%), 48.9% (95% CI, 45.4% to 52.5%), and 51.8% (95% CI, 48.6% to 55.0%) for those with 1, 2, and 3 or more disabilities, respectively. Any tobacco, cigarette, e-product, cigarillo, filtered cigar, and pipe use were consistently higher among those with multiple disabilities compared with those with 0 or 1 disability. Prevalence was highest among those with 3 or more disabilities for all products. Tobacco use declined over time, except e-product use increased. However, not all declines in prevalence between 2013 to 2014 and 2022 to 2023 were significant among those with 3 or more disabilities. The declines for those who used any tobacco (-4.6%; 95% CI, -8.7% to -0.6%) and cigarettes (-8.9%; 95% CI, -12.7% to -5.1%) were small, and increases in e-product use were large (4.6%; 95% CI, 1.0% to 8.3%) for those with 3 or more disabilities compared with other groups.

CONCLUSIONS AND RELEVANCE: In this survey study, disparities in tobacco use existed across cumulative disabilities. Despite declines in tobacco use over time, differences in use across cumulative disabilities persisted or worsened, especially among those with 3 or more disabilities. Targeted prevention, screening, and cessation efforts inclusive of multiple products are needed.

PMID:39964679 | DOI:10.1001/jamanetworkopen.2024.60471

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Bayesian Hierarchical Penalized Spline Models for Immediate and Time-Varying Intervention Effects in Stepped Wedge Cluster Randomized Trials

Stat Med. 2025 Feb 28;44(5):e10304. doi: 10.1002/sim.10304.

ABSTRACT

Stepped wedge cluster randomized trials (SWCRTs) often face challenges related to potential confounding by time. Traditional frequentist methods may not provide adequate coverage of an intervention’s true effect using confidence intervals, whereas Bayesian approaches show potential for better coverage of intervention effects. However, Bayesian methods remain underexplored in the context of SWCRTs. To bridge this gap, we propose two innovative Bayesian hierarchical penalized spline models. Our first model accommodates large numbers of clusters and time periods, focusing on immediate intervention effects. To evaluate this approach, we compared this model to traditional frequentist methods. We then extend our approach to account for time-varying intervention effects, conducting a comprehensive comparison with an existing Bayesian monotone effect curve model and alternative frequentist methods. The proposed models were applied in the Primary Palliative Care for Emergency Medicine stepped wedge trial to evaluate the effectiveness of the intervention. Through extensive simulations and real-world application, we demonstrate the robustness of our proposed Bayesian models. Notably, the Bayesian immediate effect model consistently achieves the nominal coverage probability, providing more reliable interval estimations while maintaining high estimation accuracy. Furthermore, our proposed Bayesian time-varying effect model represents a significant advancement over the existing Bayesian monotone effect curve model, offering improved accuracy and reliability in estimation while also achieving higher coverage probability than alternative frequentist methods. To the best of our knowledge, this marks the first development of Bayesian hierarchical spline modeling for SWCRTs. Our proposed models offer promising tools for researchers and practitioners, enabling more precise evaluation of intervention impacts.

PMID:39964677 | DOI:10.1002/sim.10304

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Adaptive Use of Co-Data Through Empirical Bayes for Bayesian Additive Regression Trees

Stat Med. 2025 Feb 28;44(5):e70004. doi: 10.1002/sim.70004.

ABSTRACT

For clinical prediction applications, we are often faced with small sample size data compared to the number of covariates. Such data pose problems for variable selection and prediction, especially when the covariate-response relationship is complicated. To address these challenges, we propose to incorporate external information on the covariates into Bayesian additive regression trees (BART), a sum-of-trees prediction model that utilizes priors on the tree parameters to prevent overfitting. To incorporate external information, an empirical Bayes (EB) framework is developed that estimates, assisted by a model, prior covariate weights in the BART model. The proposed EB framework enables the estimation of the other prior parameters of BART as well, rendering an appealing and computationally efficient alternative to cross-validation. We show that the method finds relevant covariates and that it improves prediction compared to default BART in simulations. If the covariate-response relationship is non-linear, the method benefits from the flexibility of BART to outperform regression-based learners. Finally, the benefit of incorporating external information is shown in an application to diffuse large B-cell lymphoma prognosis based on clinical covariates, gene mutations, DNA translocations, and DNA copy number data.

PMID:39964672 | DOI:10.1002/sim.70004

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Patients with Severe Obesity Undergoing Roux-En-Y Gastric Bypass Versus Sleeve Gastrectomy: A Systematic Review and an Updated Meta-Analysis

Obes Surg. 2025 Feb 18. doi: 10.1007/s11695-025-07743-6. Online ahead of print.

ABSTRACT

BACKGROUND: Laparoscopic Roux-En-Y Gastric Bypass (LRYGB) contributes significantly to higher weight loss at 6 to 12 months when compared to Laparoscopic Sleeve Gastrectomy (LSG) in patients with severe obesity (SO-body mass index (BMI) ≥ 50 kg/m2). However, there is still no consensus regarding the best procedure in terms of mortality and complication rates. We performed a systematic review and meta-analysis to compare the complication rates between these two surgical procedures.

METHODS: PubMed, EMBASE, and Cochrane Central were searched for studies that compared LRYGB and LSG in SO patients. We pooled outcomes for mortality and complications, defined as bleeding, cardiovascular events, conversion to open procedure, and a composite endpoint of leak, abscess, fistulas, and reoperation. Length of stay and operative time were also pooled. A random-effects model was used, and statistical analyses were performed using R version 4.4.0.

RESULTS: A total of 156,767 patients from 28 observational studies were included, of whom 79,324 (50.6%) underwent LRYGB and 77,443 (49.4%) LSG. Length of stay (MD 0.45; 95% CI 0.42-0.48; P < 0.01) and operative time (MD 58.88; 95% CI 37.88-79.87; P < 0.01) were lower in the LSG group. Overall, there was no difference in mortality (OR 1.28; 95% CI 0.80-2.04; P = 0.311) and in complication rates (OR 1.22; 95% CI 0.85-1.76; P = 0.287). A subgroup analysis showed lower conversion to open procedure for patients who underwent LSG (OR 2.75; 95% CI 1.90-3.98; P < 0.001), and no difference was noted in bleeding (OR 0.98; 95% CI 0.47-2.07; P = 0.965), cardiovascular events (OR 0.99; 95% CI 0.43-2.29; P = 0.983), and a composite endpoint of leak, abscess, and fistulas (OR 0.82; 95% CI 0.67-1.01; P = 0.066).

CONCLUSION: Our meta-analysis suggests that there is no difference in mortality and complication rates between the two groups. However, length of stay and operative time were lower in SO patients who underwent LSG.

PMID:39964665 | DOI:10.1007/s11695-025-07743-6

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Long-term outcomes and prognosis in vitrectomy with autologous platelet concentrate injection for large, high myopic, or recurrent macular holes

Jpn J Ophthalmol. 2025 Feb 18. doi: 10.1007/s10384-025-01166-7. Online ahead of print.

ABSTRACT

PURPOSE: This study investigated the long-term efficacy and safety of Autologous Platelet Concentrate (APC) injection as an adjunct to pars plana vitrectomy (PPV) in the treatment of macular holes (MHs) with a high risk of surgical failure, including large, highly myopic, or recurrent MHs.

STUDY DESIGN: Retrospective study.

METHODS: This study included patients who underwent PPV with or without APC injection for MHs at Seoul St. Mary’s Hospital between March 2017 and February 2020, with a minimum postoperative follow-up period of 3 years. Anatomical success rates, alterations in foveal microstructure, and improvements in best-corrected visual acuity (BCVA) were evaluated.

RESULTS: Fifty-four patients were included, exhibiting a trend toward enhanced anatomical success in the PPV with APC group (95.0%) compared to the PPV with flap techniques (85.7%) and PPV without the adjunct of flap techniques or APC injection (84.6%), though not statistically significant. Significant findings included increased glial proliferation within the PPV with APC group, sustained for up to one year (P < 0.01), and a significant correlation between glial proliferation and MH closure (P = 0.032). Improvements in BCVA were substantial and found to be significantly associated with preoperative BCVA, the reconstruction of the external limiting membrane (ELM) and ellipsoid zone (EZ) (P = 0.008, 0.010, and 0.047, respectively).

CONCLUSION: The use of APC as adjuvant to PPV can be advantageous in cases of challenging MHs, reflecting comparable anatomical success rates, potential for glial proliferation critical for hole closure, and established safety profile.

PMID:39964664 | DOI:10.1007/s10384-025-01166-7

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Functional connectivity and white matter microstructural alterations in patients with left basal ganglia acute ischemic stroke

Brain Imaging Behav. 2025 Feb 18. doi: 10.1007/s11682-025-00982-2. Online ahead of print.

ABSTRACT

Lesions in the basal ganglia present different neuroimaging manifestations compared to other regions. The functional connectivity and white matter (WM) microstructural alterations in patients with left basal ganglia acute ischemic stroke (AIS) remain unknown. This study aimed to explore the alterations of functional connectivity and WM microstructure, as well as their relationship with cognitive performance in patients with left basal ganglia AIS. We acquired resting-state functional MRI (rs-fMRI) and diffusion kurtosis imaging (DKI) data from 41 individuals with left basal ganglia AIS and 41 healthy controls (HC). The degree centrality (DC) method was applied to calculate the functional connectivity and Tract-Based Spatial Statistics was employed to evaluate the voxel-based group differences of diffusion metrics for the values of fractional anisotropy (FA), mean diffusivity, axial diffusivity (AD), radial diffusivity, mean kurtosis (MK), axial kurtosis, and radial kurtosis (RK). AIS showed attenuated DC in the bilateral precuneus and enhanced DC in the left caudate nucleus, compared with HC. In AIS, DC in the left caudate nucleus correlated positively with the Montreal Cognitive Assessment (MoCA) score (r = 0.681, p < 0.05). AIS had significantly decreased FA, AD, MK, and RK in WM tracts, including the internal capsule (IC), genu of corpus callosum (CC), body of CC, left superior longitudinal fasciculus (SLF), left cerebral peduncle, left corticospinal tract, anterior corona radiata (ACR), and left cingulum gyrus (CG). The MK in a cluster including the body of CC, right IC, left cingulate, SLF, ACR, and left CG was also significantly negatively correlated with MoCA scores (r = -0.508, p < 0.05). This study revealed that left basal ganglia AIS not only disrupted the functional connectivity of the whole brain but also had a pervasive impact on the WM microstructure of the whole brain. These findings provide novel insights into the underlying neural mechanisms of early cognitive decline in patients after AIS.

PMID:39964657 | DOI:10.1007/s11682-025-00982-2

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Electronic Prescribing in the Neonatal Intensive Care Unit: Analysis of Prescribing Errors and Risk Factors

J Med Syst. 2025 Feb 18;49(1):26. doi: 10.1007/s10916-025-02161-8.

ABSTRACT

Patients admitted to neonatal intensive care units are up to eight times more likely to experience medication errors than patients admitted to adult intensive care units. Prescribing errors account for up to 74% of medication errors. Electronic prescribing has been postulated as a tool to reduce errors. The objective was to analyse prescribing errors with the e-prescribing system and risk factors. All patients who were admitted for at least 24 h and who received active pharmacological treatment during the study period were included. Prescriptions were made using electronic assisted prescription software integrated into the medical record system. Treatment was reviewed daily by a pharmacist, and errors were graded according to taxonomic criteria. A total of 240 patients were included, 13,876 prescriptions were reviewed and 455 errors were found (3.3% of prescriptions were wrong). Prescribing errors were concentrated in 40 drugs/nutritional products. The most frequent error was a discrepancy between the prescription and the associated text-free field (n = 196). The drugs with the most errors were Lactobacillus acidophilus, caffeine citrate, acetaminophen, gentamycin and cholecalciferol. Patients with a birth weight from 1000 to 1500 g were 82% more likely to experience an error than those with an extremely low birth weight (< 1000 g) (OR = 1.81, 95% CI = 1.42-2.89, p < 0.05). Patients at the highest risk were those with gestational ages from 28 to 32 weeks, with a 29.80% greater risk of prescribing errors than those with gestational ages less than 28 weeks (OR = 1.29, 95% CI = 1.02-1.65, p < 0.05). Prescribing errors occur due to complex dosing rules based on patient characteristics and free-text use, highlighting process issues rather than specific medication risks.

PMID:39964641 | DOI:10.1007/s10916-025-02161-8

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Stem Cell-Derived Extracellular Vesicles for Acute Pancreatitis: a Systematic Review and Meta-analysis of Preclinical Studies

Stem Cell Rev Rep. 2025 Feb 14. doi: 10.1007/s12015-025-10852-5. Online ahead of print.

ABSTRACT

BACKGROUND: Several studies have reported the effectiveness of stem cell-derived extracellular vesicles (SC-EVs) in disease treatment. However, the efficacy of SC-EVs for severe acute pancreatitis (SAP) remains uncertain. This systematic review aimed to analyze and evaluate the effect of SC-EVs in the treatment of SAP in animal models by summarizing data from published studies.

METHODS: We searched Pubmed, Embase, and Web of Science databases to identify preclinical studies investigating the therapeutic effect of SC-EVs on SAP. The primary outcome was the histopathological scores of pancreatic tissues, including inflammation, edema, and necrosis. Other outcome measures included levels of amylase, IL-6, IL-10, and TNF-α. Eligible studies were selected based on the inclusion and exclusion criteria. SYRCLE checklist was adopted to assess the quality and bias risks of included studies. Mean differences and 95% confidence intervals were calculated using the inverse variance method with a random effects model. All statistical analyses were performed using RevMan 5.3 software.

RESULTS: A total of 8 studies including 126 animals were included. The results of meta-analysis revealed that SC-EVs treatment significantly reduced pancreatic histopathologic scores (total score: MD = -5.17, 95% CI: -5.79, -4.55; inflammation score: MD = -1.44, 95% CI: -1.70, -1.19; edema score: MD = -1.42, 95% CI: -1.75, -1.09; necrosis score: MD = -1.42, 95% CI: -1.80, -1.04), inhibited pro-inflammatory factor release (IL-6: SMD = -3.20, 95% CI: -4.51, -1.88; TNF-α SMD = -5.18, 95% CI: -6.96, -3.40), and enhancing the release of anti-inflammatory factors (IL-10 SMD = 4.15, 95% CI: 2.49, 5.81). Further subgroup analyses displayed SC-EVs treatment obviously attenuated animal pancreatic pathologic injury in traumatic pancreatitis and drug-induced acute pancreatitis, and the effect of SC-EVs to inhibit TNF-α secretion in the drug-induced SAP model was correlated with the dose of SC-EVs injection.

CONCLUSIONS: This meta-analysis displayed that SC-EVs were correlated with SAP injury alleviation and pancreas function reservation. Research into the treatment of SAP with SC-EVs is still in its early stage, necessitating further comprehensive investigations in the future to elucidate the therapeutic mechanisms of SC-EVs and their potential application in SAP.

PMID:39964640 | DOI:10.1007/s12015-025-10852-5

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Identification of selection signatures and genetic diversity in the sheep

Trop Anim Health Prod. 2025 Feb 18;57(2):68. doi: 10.1007/s11250-025-04307-9.

ABSTRACT

In the study, data obtained from OvineSNP50K SNP chips using the Illumina® iScan platform for Eşme sheep were used. The integrated haplotype score (iHS) and runs of homozygosity (ROH) statistical approaches were used to identify selection signatures. Using the iHS analysis, it was discovered that there are 10 genomic regions and 51 genes on ovine chromosomes 1, 9, 11, and 12 that are under selection. Three genomic regions and 97 genes on ovine chromosomes 6 and 11 were found to be under selection using the ROH analysis. Candidate genes associated with economic and ecological traits were detected using both approaches. Among the genetic diversity parameters considered in this study, the minor allele frequency (MAF), the genetic distance between individuals (D), as well as observed (Ho) and expected heterozygosities (He) values were 0.300, 0.309, 0.388, and 0.390, respectively. The obtained Ho, He and D values indicate a moderate level of genetic diversity. The ratio of polymorphic SNPs (PN) was 0.947, and the average values of FROH and FHOM were 0.030 and 0.029, respectively. Considering the PN value obtained in the study, it is evident that the SNPs in the population exhibit a high level of polymorphism at 94.7%. While the FROH value obtained indicates high genetic diversity among the individuals in the present study, the FHOM value suggests that the population is predominantly composed of heterozygous individuals. As a result, evidence indicating genetic advancements have been made for target traits in breeding programs within the population. Additionally, candidate genes suitable for future molecular marker-supported breeding programs have been identified. In addition, a better understanding of the genetic structure and production potential of the population has been achieved. Findings have shown that Eşme sheep are a breed with high meat production potential and strong adaptation abilities.

PMID:39964635 | DOI:10.1007/s11250-025-04307-9