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Nevin Manimala Statistics

Novel Machine Learning HIV Intervention for Sexual and Gender Minority Young People Who Have Sex With Men (uTECH): Protocol for a Randomized Comparison Trial

JMIR Res Protoc. 2024 Aug 20;13:e58448. doi: 10.2196/58448.

ABSTRACT

BACKGROUND: Sexual and gender minority (SGM) young people are disproportionately affected by HIV in the United States, and substance use is a major driver of new infections. People who use web-based venues to meet sex partners are more likely to report substance use, sexual risk behaviors, and sexually transmitted infections. To our knowledge, no machine learning (ML) interventions have been developed that use web-based and digital technologies to inform and personalize HIV and substance use prevention efforts for SGM young people.

OBJECTIVE: This study aims to test the acceptability, appropriateness, and feasibility of the uTECH intervention, a SMS text messaging intervention using an ML algorithm to promote HIV prevention and substance use harm reduction among SGM people aged 18 to 29 years who have sex with men. This intervention will be compared to the Young Men’s Health Project (YMHP) alone, an existing Centers for Disease Control and Prevention best evidence intervention for young SGM people, which consists of 4 motivational interviewing-based counseling sessions. The YMHP condition will receive YMHP sessions and will be compared to the uTECH+YMHP condition, which includes YMHP sessions as well as uTECH SMS text messages.

METHODS: In a study funded by the National Institutes of Health, we will recruit and enroll SGM participants (aged 18-29 years) in the United States (N=330) to participate in a 12-month, 2-arm randomized comparison trial. All participants will receive 4 counseling sessions conducted over Zoom (Zoom Video Communications, Inc) with a master’s-level social worker. Participants in the uTECH+YMHP condition will receive curated SMS text messages informed by an ML algorithm that seek to promote HIV and substance use risk reduction strategies as well as undergoing YMHP counseling. We hypothesize that the uTECH+YMHP intervention will be considered acceptable, appropriate, and feasible to most participants. We also hypothesize that participants in the combined condition will experience enhanced and more durable reductions in substance use and sexual risk behaviors compared to participants receiving YMHP alone. Appropriate statistical methods, models, and procedures will be selected to evaluate primary hypotheses and behavioral health outcomes in both intervention conditions using an α<.05 significance level, including comparison tests, tests of fixed effects, and growth curve modeling.

RESULTS: This study was funded in August 2019. As of June 2024, all participants have been enrolled. Data analysis has commenced, and expected results will be published in the fall of 2025.

CONCLUSIONS: This study aims to develop and test the acceptability, appropriateness, and feasibility of uTECH, a novel approach to reduce HIV risk and substance use among SGM young adults.

TRIAL REGISTRATION: ClinicalTrials.gov NCT04710901; https://clinicaltrials.gov/study/NCT04710901.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/58448.

PMID:39163591 | DOI:10.2196/58448

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Nevin Manimala Statistics

Effect of creative art therapy (CATs) on depressive symptoms and quality of life among Jordanian community-dwelling older people: an experimental study

Arts Health. 2024 Aug 20:1-21. doi: 10.1080/17533015.2024.2394117. Online ahead of print.

ABSTRACT

BACKGROUND: There are a lack of studies examining the effect of creative art therapy on older people. This study aimed to evaluate the effect of creative art therapy on reducing depressive symptoms and improving the quality of life among Jordanian older people.

METHODS: A one-group time-series design (pretest, posttest, and follow-up) was adopted between June 2021 and April 2022 on 102 community-dwelling older people who suffered from depressive symptoms and low quality of life in Amman Governorate.

FINDINGS: Significant differences were found among older people in pre-, post-, and follow-up therapy for depressive symptoms and quality of life. Post hoc tests showed a statistically significant reduction in symptoms and an improvement in quality of life from pre to post-intervention, which was sustained at follow-up.

CONCLUSION: Results suggested that using creative art therapies as a therapeutic intervention for older persons was effective in minimizing depressive symptoms and improving quality of life.

PMID:39163557 | DOI:10.1080/17533015.2024.2394117

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Nevin Manimala Statistics

Manifold Gaussian Variational Bayes on the Precision Matrix

Neural Comput. 2024 Aug 19;36(9):1744-1798. doi: 10.1162/neco_a_01686.

ABSTRACT

We propose an optimization algorithm for variational inference (VI) in complex models. Our approach relies on natural gradient updates where the variational space is a Riemann manifold. We develop an efficient algorithm for gaussian variational inference whose updates satisfy the positive definite constraint on the variational covariance matrix. Our manifold gaussian variational Bayes on the precision matrix (MGVBP) solution provides simple update rules, is straightforward to implement, and the use of the precision matrix parameterization has a significant computational advantage. Due to its black-box nature, MGVBP stands as a ready-to-use solution for VI in complex models. Over five data sets, we empirically validate our feasible approach on different statistical and econometric models, discussing its performance with respect to baseline methods.

PMID:39163554 | DOI:10.1162/neco_a_01686

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Nevin Manimala Statistics

Sulfamethoxazole-Trimethoprim Prophylaxis in Pediatric Oncology Patients With Glucose-6-Phosphate Dehydrogenase Deficiency

Pediatr Infect Dis J. 2024 Aug 7. doi: 10.1097/INF.0000000000004515. Online ahead of print.

ABSTRACT

We sought to determine whether Pneumocystis jirovecii pneumonia prophylaxis with sulfamethoxazole-trimethoprim (SMX-TMP) is associated with an increased frequency of acute hemolytic anemia in patients with glucose-6-phosphate dehydrogenase (G6PD) deficiency versus non-G6PD-deficient controls in a pediatric oncology population. There was no statistically significant difference in change in hemoglobin or transfusion requirements after starting SMX-TMP between groups. These findings suggest no increased risk of acute hemolytic anemia with SMX-TMP administered at prophylaxis doses in patients with G6PD deficiency.

PMID:39163536 | DOI:10.1097/INF.0000000000004515

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Nevin Manimala Statistics

Respiratory Syncytial Virus Hospital Admission Rates and Patients’ Characteristics Before the Age of 2 Years in England, 2015-2019

Pediatr Infect Dis J. 2024 Sep 1;43(9):909-915. doi: 10.1097/INF.0000000000004467. Epub 2024 Jul 5.

ABSTRACT

BACKGROUND: A granular understanding of respiratory syncytial virus (RSV) burden in England is needed to prepare for new RSV prevention strategies. We estimated the rates of RSV hospital admissions before the age of 2 years in England and described baseline characteristics.

METHODS: A birth cohort of all infants born between March 1, 2015, and February 28, 2017 (n = 449,591) was established using Clinical Practice Research Datalink-Hospital Episode Statistics. Case cohorts included infants with admission for (1) RSV, (2) bronchiolitis, (3) any respiratory tract infection (RTI) <24 months and (4) RSV predicted by an algorithm <12 months. Baseline characteristics were described in the case and comparative cohorts (infants without corresponding admission). Cumulative incidence and admission rates were calculated. Multiple linear regression was used to estimate the proportion of RTI healthcare visits attributable to RSV.

RESULTS: The RSV-coded/RSV-predicted case cohorts were composed of 4813/12,694 infants (cumulative incidence: 1.1%/2.8%). Case cohort infants were more likely to have low birth weight, comorbidities and to be born during RSV season than comparative cohort infants, yet >77% were term-healthy infants and >54% were born before the RSV season. During the first year of life, 11.6 RSV-coded and 34.4 RSV-predicted hospitalizations occurred per 1000 person-years. Overall, >25% of unspecified lower RTI admissions were estimated to be due to RSV.

CONCLUSIONS: In England, 1 in 91 infants had an RSV-coded admission, likely underestimated by ~3-fold. Most infants were term-healthy infants born before the RSV season. To decrease the total burden of RSV at the population level, immunization programs need to protect all infants.

PMID:39163535 | DOI:10.1097/INF.0000000000004467

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Nevin Manimala Statistics

Projected Public Health Impact of a Universal Rotavirus Vaccination Program in France

Pediatr Infect Dis J. 2024 Sep 1;43(9):902-908. doi: 10.1097/INF.0000000000004448. Epub 2024 Jun 25.

ABSTRACT

OBJECTIVE: In June 2022, French health authorities issued a universal recommendation for routine administration and reimbursement of rotavirus vaccines in infants. Given this recent recommendation by French health authorities, we sought to understand the public health impact of a universal rotavirus vaccination strategy compared with no vaccination.

MATERIALS AND METHODS: A deterministic, age-structured, nonlinear dynamic transmission model, accounting for herd immunity, was developed. We considered 3 vaccination coverage scenarios: high (95%), medium (75%) and low (55%). Model parameter values were based on published modeling and epidemiological literature. Model outcomes included rotavirus gastroenteritis (RVGE) cases and healthcare resource utilization due to RVGE (hospitalizations, general practitioner or emergency department visits), as well as the number needed to vaccinate to prevent 1 RVGE case (mild or severe) and 1 RVGE-related hospitalization. Model calibration and analyses were conducted using Mathematica 11.3.

RESULTS: Over 5 years following implementation, RVGE cases for children under 5 years are estimated to be reduced by 84% under a high vaccination coverage scenario, by 72% under a medium vaccination coverage scenario and by 47% under a low vaccination coverage scenario. Across all scenarios, the number needed to vaccinate to avert 1 RVGE case and hospitalization varied between 1.86-2.04 and 24.15-27.44, respectively.

CONCLUSIONS: Rotavirus vaccination with high vaccination coverage in France is expected to substantially reduce the number of RVGE cases and associated healthcare resource utilization.

PMID:39163534 | DOI:10.1097/INF.0000000000004448

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Nevin Manimala Statistics

Comparative analysis of national and foreign players’ performance in Euroleague Basketball

PLoS One. 2024 Aug 20;19(8):e0306240. doi: 10.1371/journal.pone.0306240. eCollection 2024.

ABSTRACT

This study aimed to quantitatively assess the statistical contributions between foreign and national players in men’s Euroleague Basketball. Data from 588 games in the 2021-2022 regular season and 612 games in the 2022-2023 regular season were analyzed through non-participant observation. Paired t-tests and Wilcoxon tests were employed to analyse variables with normal and non-normal distributions, respectively. The analysis indicated significant differences (p<0.05) between local and foreign players across several key variables, including Minutes, Points, Average Points, Usage Percentage, Individual Offensive Rating, Individual Defensive Rating, and True Shooting Percentage. These findings suggest pronounced distinctions between foreign players and national players concerning game volume indicators and game performance efficiency. Foreign players exhibited dominance in critical areas, such as playing time, total points scored, and average points per game, underscoring their substantial contributions to their respective teams. Consequently, these results offer practical implications for players, coaches, and fitness trainers, allowing for the design of more tailored training programs that account for distinct offensive and defensive needs, as well as the heightened physical demands experienced throughout the season.

PMID:39163411 | DOI:10.1371/journal.pone.0306240

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Nevin Manimala Statistics

Severe COVID-19 infection: An institutional review and literature overview

PLoS One. 2024 Aug 20;19(8):e0304960. doi: 10.1371/journal.pone.0304960. eCollection 2024.

ABSTRACT

BACKGROUND: Our study aimed to describe the group of severe COVID-19 patients at an institutional level, and determine factors associated with different outcomes.

METHODS: A retrospective chart review of patients admitted with severe acute hypoxic respiratory failure due to COVID-19 infection. Based on outcomes, we categorized 3 groups of severe COVID-19: (1) Favorable outcome: progressive care unit admission and discharge (2) Intermediate outcome: ICU care (3) Poor outcome: in-hospital mortality.

RESULTS: Eighty-nine patients met our inclusion criteria; 42.7% were female. The average age was 59.7 (standard deviation (SD):13.7). Most of the population were Caucasian (95.5%) and non-Hispanic (91.0%). Age, sex, race, and ethnicity were similar between outcome groups. Medicare and Medicaid patients accounted for 62.9%. The average BMI was 33.5 (SD:8.2). Moderate comorbidity was observed, with an average Charlson Comorbidity index (CCI) of 3.8 (SD:2.6). There were no differences in the average CCI between groups(p = 0.291). Many patients (67.4%) had hypertension, diabetes (42.7%) and chronic lung disease (32.6%). A statistical difference was found when chronic lung disease was evaluated; p = 0.002. The prevalence of chronic lung disease was 19.6%, 27.8%, and 40% in the favorable, intermediate, and poor outcome groups, respectively. Smoking history was associated with poor outcomes (p = 0.04). Only 7.9% were fully vaccinated. Almost half (46.1%) were intubated and mechanically ventilated. Patients spent an average of 12.1 days ventilated (SD:8.5), with an average of 6.0 days from admission to ventilation (SD:5.1). The intermediate group had a shorter average interval from admission to ventilator (77.2 hours, SD:67.6), than the poor group (212.8 hours, SD:126.8); (p = 0.001). The presence of bacterial pneumonia was greatest in the intermediate group (72.2%), compared to the favorable group (17.4%), and the poor group (56%); this was significant (p<0.0001). In-hospital mortality was seen in 28.1%.

CONCLUSION: Most patients were male, obese, had moderate-level comorbidity, a history of tobacco abuse, and government-funded insurance. Nearly 50% required mechanical ventilation, and about 28% died during hospitalization. Bacterial pneumonia was most prevalent in intubated groups. Patients who were intubated with a good outcome were intubated earlier during their hospital course, with an average difference of 135.6 hours. A history of cigarette smoking and chronic lung disease were associated with poor outcomes.

PMID:39163410 | DOI:10.1371/journal.pone.0304960

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Nevin Manimala Statistics

Information preferences of patients with chronic blood cancer: A qualitative investigation

PLoS One. 2024 Aug 20;19(8):e0293772. doi: 10.1371/journal.pone.0293772. eCollection 2024.

ABSTRACT

BACKGROUND: Haematological malignancies (blood cancers) often follow chronic trajectories that can span many months or years. Management of these diseases typically involves periods of ‘Watch & Wait’, whereby patients are monitored by the hospital and only treated at progression, if or when this occurs, which might be never or on multiple occasions. Such remitting-relapsing pathways are unpredictable and can cause anxiety and distress. This study aimed to generate evidence about information preferences, with a view to underpinning future patient-facing resources; potentially mitigating psycho-social difficulties and promoting effective shared decision-making.

METHODS: A qualitative study was conducted, set within a UK population-based cohort of patients with haematological malignancies. Sampling was purposive, based on age (initially around the median age of diagnosis) and disease subtype (chronic lymphocytic leukaemia, follicular lymphoma, marginal zone lymphoma and myeloma); and in-depth interviews took place with 35 patients (10 with relatives). Analysis drew on qualitative description and thematic content analysis and included critical reading and annotation of transcripts, identification of common and rare phenomena, generation of codes and coding of material, and theme development.

RESULTS: Patients discussed their preferences and experiences at length and rich data were generated from diagnosis onwards, across diagnostic subtypes. The overarching theme identified was ‘Variations in preferences’ with needs seen to differ from person to person; as well as changing over time for individuals. Five sub-themes were identified: 1) To know or not to know? 2) Needs are dynamic; 3) The polarising issue of prognosis; 4) Preferred sources; and 5) Differences in content, depth and presentation.

CONCLUSIONS: Varied, dynamic information preferences indicate that resources should be developed in a way that provides maximum choice, enabling patients to select relevant material at different time-points on their trajectory. The development of blood cancer subtype-specific “real-world clinical scenarios” could improve patient experiences and inform shared decision-making.

PMID:39163402 | DOI:10.1371/journal.pone.0293772

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Nevin Manimala Statistics

Outcomes of different steroid dosing regimens in critical Covid-19 pneumonia at a Kenyan hospital: A retrospective cohort study

PLoS One. 2024 Aug 20;19(8):e0307265. doi: 10.1371/journal.pone.0307265. eCollection 2024.

ABSTRACT

BACKGROUND: Among therapeutic options for severe and critical COVID- 19 infection, dexamethasone six milligrams once daily for ten days has demonstrated mortality benefit and is guideline recommended at this dose. In practice, variable doses of steroids have been used, especially in critical care settings. Our study aimed to determine the pattern of steroid dosing and outcomes in terms of critical care mortality, occurrence of dysglycaemias, and occurrence of superadded infections in patients with critical COVID-19.

METHODS: A retrospective cohort study was carried out on all eligible patients admitted to the Aga Khan University Hospital, Nairobi, with critical COVID-19 between 1st March 2020 and 31st December 2021. The intervention of interest was corticosteroids quantified as the average daily dose in milligrams of dexamethasone. A steroid dose of six milligrams once a day was compared to high dose steroid dosing, which was defined as any dose greater than this. The primary outcome measure was ICU mortality and secondary outcomes included occurrence of dysglycaemias, superadded infections and duration of critical care admission.

RESULTS: The study included 288 patients. The median age was 61.2 years (IQR: 49.7, 72.5), with 71.2% of patients being male. The most common comorbidities were diabetes mellitus (60.7%), hypertension (58%), and heart disease (12.2%). The average oxygen saturation and C-reactive protein at admission were 82% [IQR: 70.0-89.0]and 113.0 [IQR: 54.0-186.0], respectively. Fifty-eight percent of patients received a standard dose (6mg) of steroids. The mortality rate was higher in the high-dose group compared to the standard-dose group; however, the difference was not statistically significant (47.9% vs 43.7% p = 0.549). The two most common steroid associated adverse effects were uncomplicated hyperglycemia (62.2%) and superimposed bacterial pneumonia (20.1%). The high-dose group had a higher incidence of uncomplicated hyperglycemia compared to the standard-dose group (63.6% vs 61.1%). However, the incidence of diabetic ketoacidosis was lower in the high dose group (0.6% vs 6.6%). Oxygen saturation at admission was associated with survival where it was lower among non-survivor patients with critical COVID-19.

CONCLUSION: The study found that high-dose steroids in the treatment of critically ill patients with COVID-19 pneumonia did not confer any mortality benefit and were associated with an increased risk of dysglycemia and superimposed infections.

PMID:39163391 | DOI:10.1371/journal.pone.0307265