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Nevin Manimala Statistics

High mortality in adolescents and young adults with perinatally-acquired HIV in Thailand during the transition to adulthood

AIDS Care. 2024 Mar 6:1-10. doi: 10.1080/09540121.2024.2325100. Online ahead of print.

ABSTRACT

Transitioning from pediatric to adult care remains a challenge for adolescents and young adults with perinatally-acquired HIV (AYA-PHIV). We assessed treatment outcomes and mortality among Thai AYA-PHIV. The study included AYA-PHIV who reached age 18-24 years who started antiretroviral treatment during childhood at five pediatric HIV clinics across Thailand. From November 2020-July 2021, data were gathered from a cohort database, medical records, and the Thai National AIDS Program. Of 811 eligible AYA-PHIV, 93% were alive; median age 22.3 years (IQR 20.6-23.7), treatment duration 16.1 years (IQR 13.4-18.0). Current HIV care was provided in adults (71%) and pediatric clinics (29%). Treatment regimens included non-nucleoside reverse transcriptase inhibitors (55%), protease inhibitors (36%), and integrase inhibitors (8%); 78% had HIV RNA <200 copies/ml. Of the 7.0% who died, median age at death was 20.8 years (IQR 20.6-22.1); 88% were AIDS-related death. Mortality after age 18 was 1.76 per 100-person years (95% confidence interval 1.36-2.28). Those with CD4 <200 cell/mm3 at age 15 had higher risk of mortality (adjusted hazard ratio 6.16, 95% CI 2.37-16.02). In conclusion, the high mortality among Thai AYA-PHIV indicated the need for better systems to support AYA-PHIV during the transition to adulthood.

PMID:38447043 | DOI:10.1080/09540121.2024.2325100

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Nevin Manimala Statistics

Revealing genes associated with cervical cancer in distinct immune cells: A comprehensive Mendelian randomization analysis

Int J Cancer. 2024 Mar 6. doi: 10.1002/ijc.34911. Online ahead of print.

ABSTRACT

Human papillomavirus can be contracted by sexually active women. However, only a small proportion of these infections persist and have the potential to progress into cervical cancers, indicating a significant involvement of the immune system in cervical cancer development. Despite this, our understanding of the precise contributions of genes from different immune cell types in cervical cancers remains limited. Therefore, the primary objective of our study was to investigate the potential causal relationships between specific immune cell genes and the development of cervical cancers. By accessing expression quantitative trait loci datasets of 14 distinct immune cell types and genome wide association study of cervical cancers, we employed the summary data-based Mendelian randomization (SMR) along with multi-single nucleotide polymorphism (SNP)-based SMR to identify significant genes associated with cervical cancers. Colocalization analysis was further conducted to explore the shared genetic causality. A total of 10 genes across 11 immune cell types (26 significant gene-trait associations) were found to be associated with cervical cancers after false discovery rate correction. Notably, the ORMDL3, BRK1 and HMGN1 gene expression levels showed significant association with cervical cancer in specific immune cell types, respectively. These associations were supported by strong evidence of colocalization analyses. Our study has identified several genes in different immune cells that were associated with cervical cancer. However, further research is necessary to confirm these findings and provide more comprehensive insights into the association between these gene expressions and cervical cancer risk.

PMID:38447016 | DOI:10.1002/ijc.34911

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Nevin Manimala Statistics

The Impact of Market Factors on Meaningful Use of Electronic Health Records (EHRs) Among Primary Care Providers: Evidence From Florida Using Resource Dependence Theory and Information Uncertainty Perspective

Med Care. 2024 Feb 27. doi: 10.1097/MLR.0000000000001980. Online ahead of print.

ABSTRACT

BACKGROUND: Using federal funds from the 2009 Health Information Technology for Economic and Clinical Health Act, the Centers for Medicare and Medicaid Services funded the 2011-2021 Medicaid electronic health record (EHR) incentive programs throughout the country.

OBJECTIVE: Identify the market factors associated with Meaningful Use (MU) of EHRs after primary care providers (PCPs) enrolled in the Florida-EHR incentives program through Adopting, Improving, or Upgrading (AIU) an EHR technology.

RESEARCH DESIGN: Retrospective cohort study using 2011-2018 program records for 8464 Medicaid providers.

MAIN OUTCOME: MU achievement after first-year incentives.

INDEPENDENT VARIABLES: The resource dependence theory and the information uncertainty perspective were used to generate key-independent variables, including the county’s rurality, educational attainment, poverty, health maintenance organization penetration, and number of PCPs per capita.

ANALYTICAL APPROACH: All the county rates were converted into 3 dichotomous measures corresponding to high, medium, and low terciles. Descriptive and bivariate statistics were calculated. A generalized hierarchical linear model was used because MU data were clustered at the county level (level 2) and measured at the practice level (level 1).

RESULTS: Overall, 41.9% of Florida Medicaid providers achieved MU after receiving first-year incentives. Rurality was positively associated with MU (P<0.001). Significant differences in MU achievements were obtained when we compared the “high” terciles with the “low” terciles for poverty rates (P=0.002), health maintenance organization penetration rates (P=0.02), and number of PCPs per capita (P=0.01). These relationships were negative.

CONCLUSIONS: Policy makers and health care managers should not ignore the contribution of market factors in EHR adoption.

PMID:38447010 | DOI:10.1097/MLR.0000000000001980

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Nevin Manimala Statistics

Quantifying the relationship between bone and soft tissue measures within the rhesus macaques of Cayo Santiago

Am J Biol Anthropol. 2024 Mar 6:e24920. doi: 10.1002/ajpa.24920. Online ahead of print.

ABSTRACT

OBJECTIVES: Interpretations of the primate and human fossil record often rely on the estimation of somatic dimensions from bony measures. Both somatic and skeletal variation have been used to assess how primates respond to environmental change. However, it is unclear how well skeletal variation matches and predicts soft tissue. Here, we empirically test the relationship between tissues by comparing somatic and skeletal measures using paired measures of pre- and post-mortem rhesus macaques from Cayo Santiago, Puerto Rico.

MATERIALS AND METHODS: Somatic measurements were matched with skeletal dimensions from 105 rhesus macaque individuals to investigate paired signals of variation (i.e., coefficients of variation, sexual dimorphism) and bivariate codependence (reduced major axis regression) in measures of: (1) limb length; (2) joint breadth; and (3) limb circumference. Predictive models for the estimation of soft tissue dimensions from skeletons were built from Ordinary Least Squares regressions.

RESULTS: Somatic and skeletal measurements showed statistically equivalent coefficients of variation and sexual dimorphism as well as high epiphyses-present ordinary least square (OLS) correlations in limb lengths (R2 >0.78, 0.82), joint breadths (R2 >0.74, 0.83) and, to a lesser extent, limb circumference (R2 >0.53, 0.68).

CONCLUSION: Skeletal measurements are good substitutions for somatic values based on population signals of variation. OLS regressions indicate that skeletal correlates are highly predictive of somatic dimensions. The protocols and regression equations established here provide a basis for reliable reconstruction of somatic dimension from catarrhine fossils and validate our ability to compare or combine results of studies based on population data of either hard or soft tissue proxies.

PMID:38447005 | DOI:10.1002/ajpa.24920

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Comparison of clinical and laboratory data of adult patients with cutaneous IgA-vasculitis and non-IgA vasculitis

Clin Exp Dermatol. 2024 Mar 6:llae062. doi: 10.1093/ced/llae062. Online ahead of print.

ABSTRACT

BACKGROUND: Immune complex vasculitides may be subdivided into adult IgA small vessel vasculitis (aIgA-SVV, adult Henoch-Schönlein purpura) and non-IgA-SVV (hypersensitivity vasculitis, etc.).

OBJECTIVES: We aimed to evaluate clinical and laboratory parameters of inpatients fulfilling the diagnostic criteria for aIgA-SVV and non-IgA-SVV.

METHODS: 29 adult patients (≥ 20years) with aIgA-SVV according to the EULAR/PRINTO/PRES criteria and 53 adult patients with non-IgA-SVV according to the 2012 revised International Chapel Hill Consensus Conference Nomenclature of Vasculitides were compared with respect to a variety of clinical and laboratory parameters using uni- and multivariable statistics.

RESULTS: Compared to aIgA-SVV patients, the platelet-to-lymphocyte ratio was significantly higher in non-IgA-SVV patients. Serum C3 levels and mean corpuscular haemoglobin concentration observed in non-IgA-SVV patients were significantly lower compared to aIgA-SVV patients. Laboratory-based evidence for proteinuria and haematuria was significantly more common in patients with aIgA SVV. Only in patients with aIgA-SVV, proteinuria and haematuria significantly correlated with systemic immune-inflammation biomarkers. In patients with aIgA-SVV, higher LDH and CRP were strong independent predictors for the presence of proteinuria and proteinuria. In patients with non-IgA-SVV, female sex was a protective factor for proteinuria, while skin lesions on the upper extremities proved to be a significant independent predictor of haematuria.

CONCLUSIONS: We detected several clinical and laboratory differences between patients with aIgA-SVV and non-IgA-SVV. In both groups, distinct predictors for renal involvement could be observed indicating that aIgA-SVV and non-IgA-SVV are very similar conditions but do not appear to present the same entity.

PMID:38446988 | DOI:10.1093/ced/llae062

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Long-term functional outcomes and surgical retreatment after thulium laser enucleation of the prostate: A 10-year follow-up study

Int Braz J Urol. 2024 Mar 3;50. doi: 10.1590/S1677-5538.IBJU.2024.0039. Online ahead of print.

ABSTRACT

BACKGROUND: To evaluate the 10-year functional outcomes (primary) and frequency and predictors of BPH surgical retreatment (secondary) after ThuLEP.

MATERIALS AND METHODS: A single-center retrospective analysis of consecutive patients undergoing ThuLEP between 2010 and 2013 was performed. Inclusion criteria were: age ≥ 40 years, prostate volume (PV) ≥ 80 mL, International Prostate Symptom Score (IPSS)-Total score ≥ 8 points. IPSS-Total score was the primary outcome, and BPH surgical retreatment rate was the secondary outcome. Paired t-test, McNemar test, and Wilcoxon signed-rank test were used to compare variables. Logistic regression analysis was performed to evaluate predictors of surgical retreatment.

RESULTS: A total of 410 patients with a mean ±SD age of 63.9 ± 9.7 years and a PV of 115.6 ± 28.6 mL were included. Mean ±SD follow-up was 108.2 ± 29.6 months. IPSS-Total score was significantly improved at 1 year compared to baseline (23.3 ± 4.7 vs. 10.3 ± 3.8; p<0.001). It was similar after 5 years (10.5 ± 3.6 vs. 10.7 ± 5.0; p=0.161), with a significant worsening at 10 years (10.3 ±4.8 vs. 13.8 ±4.5; p=0.042) but remaining statistically and clinically better than baseline (13.8 ±4.5 vs. 22.1 ±4.3; p<0.001). After 10 years, 21 (5.9%) patients had undergone BPH reoperation. Baseline PV (adjusted OR 1.27, 95% CI 1.09-1.41; p<0.001) and time from BPH surgery (adjusted OR 1.32, 95% CI 1.15-1.43; p<0.001) were predictors of BPH surgical retreatment.

CONCLUSIONS: ThuLEP is associated with optimal functional outcomes and a low frequency of BPH surgical retreatment in the long-term. Baseline PV and time from surgery were predictors of BPH reoperation.

PMID:38446905 | DOI:10.1590/S1677-5538.IBJU.2024.0039

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Nevin Manimala Statistics

Is the learning curve of the urology resident for conventional radical prostatectomy similar to that of staff initiating robot-assisted radical prostatectomy?

Int Braz J Urol. 2024 Mar 3;50. doi: 10.1590/S1677-5538.IBJU.2024.9909. Online ahead of print.

ABSTRACT

INTRODUCTION: The superiority of the functional results of robot-assisted radical prostatectomyis still controversial. Despite this, it is known that minimally invasive surgery obtains better results when analyzing blood loss, blood transfusion and length of stay, for example. Several studies have analyzed the impact of the resident physician’s involvement on the results of urological surgeries. The simple learning curve for robot-assisted radical prostate surgery is estimated to be around 10 to 12 cases. Learning curve data for robotic surgeons is heterogeneous, making it difficult to analyze. Rare studies compare the results of a radical prostatectomy of an inexperienced surgeon starting his training in open surgery, with the results of the same surgeon, a few years later, starting training in robotic surgery.

OBJECTIVE: to analyze the results of open radical prostatectomy surgeries (ORP) performed by urology residents, comparing them to the results of robot-assisted radical prostatectomy (RARP), performed by these same surgeons, after completing their training in urology.

MATERIALS AND METHODS: a retrospective analysis of the cases of only 3 surgeons was performed. 50 patients underwent ORP (group A). The surgeons who operated on the ORP patients were in the 3rd and final year of the urology residency program and beginners in ORP surgery, but with at least 4 years of experience in open surgery. The same surgeons, already trained urologists, began their training in robotic surgery and performed 56 RARP surgeries (group B). For the comparative analysis, data were collected on age, number of lymph nodes removed, surgery time, hospitalization time, drain volume, drain permanence time, indwelling bladdercateter (IBC) permanence time, positive surgical margin, biochemical recurrence, risk classification (ISUP), intra and postoperative complications, urinary incontinence (UI) and erectile dysfunction (ED). The console used was the Da Vinci Si, from Intuitive®. For statistical analysis, the Shapiro-Wilk test verified that the data did not follow normality, the Levene test guaranteed homogeneity, and the Mann-Whitney test performed the comparative analysis of the quantitative data. For the analysis of qualitative data, the Chi-square test was used for nominal variables and the Mann-Whitney U test for ordinal variables. Additionally, the Friedman test analyzed whether there was an improvement in the perception of UI or ED over the months, for each group individually (without comparing them), and the post-hoc Durbin-Conover test, for the results with statistically significant difference. We used a p-value < 0.05, and the Jamovi® program (Version 2.0).

RESULTS: there was no statistically significant difference between the groups for age, number of lymph nodes removed, positive surgical margin, biochemical recurrence, risk classification and urinary incontinence. Additionally, we observed that the surgical time was longer in group B. On the other hand, the length of stay, drain volume, drain time, IBC time, complication rate and levels of erectile dysfunction in the third and sixth months were higher in group A, when compared to group B. We also observed that there was no evolutionary improvement in ED over the months in both groups, and that there was a perception of improvement in UI from the 1st to the 3rd month in group A, and from the 1st to the 6th month, and from the 3rd to the 12th month, in group B.

CONCLUSION: the learning curve of RARP is equivalent to the curve of ORP. In general, the results for the robotic group were better, however, the functional results were similar between the groups, with a slight tendency of advantage for the robotic arm.

PMID:38446904 | DOI:10.1590/S1677-5538.IBJU.2024.9909

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Nevin Manimala Statistics

A Quantitative Examination of Illness Models Among People With Opioid Use Disorder Receiving Methadone Treatment

J Addict Med. 2024 Mar 6. doi: 10.1097/ADM.0000000000001282. Online ahead of print.

ABSTRACT

BACKGROUND: Few studies have examined illness models among people with addiction. We investigated illness models and their associations with demographics and treatment beliefs among patients receiving methadone treatment for opioid use disorder.

METHODS: From January 2019 to February 2020, patients receiving methadone treatment at outpatient opioid treatment programs provided demographics and rated using 1 to 7 Likert-type scales agreement with addiction illness models (brain disease model, chronic medical condition model [CMCM], and no explanation [NEM]) and treatment beliefs. Pairwise comparisons and multivariate regressions were used to examine associations between illness models, demographics, and treatment beliefs. Statistical significance was set at P < 0.05.

RESULTS: A total of 450 patients participated in the study. Forty percent self-identified as female, 13% as Hispanic, and 78% as White; mean age was 38.5 years. Brain disease model was the most frequently endorsed illness model (46.2%), followed by CMCM (41.7%) and NEM (21.9%). In multivariate analyses, agreement with brain disease model was significantly positively associated with beliefs that methadone treatment would be effective, counseling is important, and methadone is lifesaving, whereas agreement with CMCM was significantly positively associated with beliefs that methadone treatment would be effective, counseling is important, 12-step is the best treatment, taking methadone daily is important, and methadone is lifesaving. In multivariate analyses, agreement with NEM was negatively significantly associated with beliefs that methadone would be effective, counseling is important, taking methadone daily is important, and methadone is lifesaving.

DISCUSSION: Many patients in methadone treatment endorsed medicalized addiction models. Agreement with addiction illness models appear to be related to treatment beliefs.

PMID:38446859 | DOI:10.1097/ADM.0000000000001282

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Diving dinosaurs? Caveats on the use of bone compactness and pFDA for inferring lifestyle

PLoS One. 2024 Mar 6;19(3):e0298957. doi: 10.1371/journal.pone.0298957. eCollection 2024.

ABSTRACT

The lifestyle of spinosaurid dinosaurs has been a topic of lively debate ever since the unveiling of important new skeletal parts for Spinosaurus aegyptiacus in 2014 and 2020. Disparate lifestyles for this taxon have been proposed in the literature; some have argued that it was semiaquatic to varying degrees, hunting fish from the margins of water bodies, or perhaps while wading or swimming on the surface; others suggest that it was a fully aquatic underwater pursuit predator. The various proposals are based on equally disparate lines of evidence. A recent study by Fabbri and coworkers sought to resolve this matter by applying the statistical method of phylogenetic flexible discriminant analysis to femur and rib bone diameters and a bone microanatomy metric called global bone compactness. From their statistical analyses of datasets based on a wide range of extant and extinct taxa, they concluded that two spinosaurid dinosaurs (S. aegyptiacus, Baryonyx walkeri) were fully submerged “subaqueous foragers,” whereas a third spinosaurid (Suchomimus tenerensis) remained a terrestrial predator. We performed a thorough reexamination of the datasets, analyses, and methodological assumptions on which those conclusions were based, which reveals substantial problems in each of these areas. In the datasets of exemplar taxa, we found unsupported categorization of taxon lifestyle, inconsistent inclusion and exclusion of taxa, and inappropriate choice of taxa and independent variables. We also explored the effects of uncontrolled sources of variation in estimates of bone compactness that arise from biological factors and measurement error. We found that the ability to draw quantitative conclusions is limited when taxa are represented by single data points with potentially large intrinsic variability. The results of our analysis of the statistical method show that it has low accuracy when applied to these datasets and that the data distributions do not meet fundamental assumptions of the method. These findings not only invalidate the conclusions of the particular analysis of Fabbri et al. but also have important implications for future quantitative uses of bone compactness and discriminant analysis in paleontology.

PMID:38446841 | DOI:10.1371/journal.pone.0298957

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Exploring and prioritising strategies for improving uptake of postnatal care services in Thyolo, Malawi: A qualitative study

PLOS Glob Public Health. 2024 Mar 6;4(3):e0002992. doi: 10.1371/journal.pgph.0002992. eCollection 2024.

ABSTRACT

Although postnatal care services form a critical component of the cascade of care in maternal, newborn, and child health the uptake of these services has remained low worldwide. This study explored and prioritised the strategies for optimising the uptake of postnatal care (PNC) services in Malawi. A qualitative descriptive study followed by nominal group techniques was conducted at three health facilities in Malawi from July to December 2020 and in October 2021. We conducted focus group discussions among postnatal mothers, fathers, healthcare workers, elderly women, and grandmothers. We conducted in-depth interviews with midwives and key health managers. Nominal group techniques were used to prioritise the main strategies for the provision of PNC. The demand strategies include appointment date reminders, provision of free health passport books, community awareness campaigns, and involvement of men in the services. The supply strategies included training health providers, improving clinic operations: task-shifting and hours of operation, having infrastructure for the services, and linkage to other services. Having services delivered near end-user residences was a crosscutting strategy. Refresher training and improvement in the clinic operations especially on hours of operation, appointment date reminders, and linkage to care were the prioritised strategies. There is a need to use acceptable and contextualised strategies to optimise the uptake and delivery of postnatal care services. Educating the healthcare workers and the community on postnatal services is key to increasing the demand and supply of the services.

PMID:38446818 | DOI:10.1371/journal.pgph.0002992