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Nevin Manimala Statistics

The effect of unconditional cash transfers on maternal assessments of children’s early language and socioemotional development: Experimental evidence from U.S. families residing in poverty

Dev Psychol. 2024 Aug 22. doi: 10.1037/dev0001824. Online ahead of print.

ABSTRACT

Economic disadvantage has often been associated with poorer performance on measures of early childhood development. However, the causal impacts of income on child development remain unclear. The present study uses data from the Baby’s First Years randomized control trial to identify the causal impact of unconditional cash transfers on maternal reports of early childhood development. One thousand racially and ethnically diverse mothers residing in poverty were recruited from four U.S. metropolitan areas shortly after giving birth. Mothers were randomized to receive either a $333/month or $20/month unconditional cash transfer for the first several years of their child’s life. Maternal reports of language and socioemotional development, concerns for developmental delay, and enrollment in early intervention services were collected annually at the time of the child’s first, second, and third birthdays. In this registered report, we document no statistically detectable impacts of the high-cash gift on maternal reports of child development. We discuss the significance and implications of these findings. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

PMID:39172428 | DOI:10.1037/dev0001824

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Nevin Manimala Statistics

Children adapt their information search to goal and statistical structure of a problem

Dev Psychol. 2024 Aug 22. doi: 10.1037/dev0001796. Online ahead of print.

ABSTRACT

To be efficient, problem solvers need to be adaptive, tailoring their information search to the specific problem at hand. Across two studies, we investigated the emergence and early development of children’s ability to adapt their information search to a given goal (Studies 1 and 2) and to the statistical structure of the problem space (Study 2) to maximize effectiveness. In Study 1, 3-6-year-olds (n = 105) decided which of two cues to look up, the arms or the legs of two monsters, to predict the winner of a throwing or jumping challenge, knowing that monsters with long arms were good throwers and those with long legs were good jumpers. Children’s ability to adaptively select relevant information and tailor their search to the goal increased with age, surpassing chance level between the ages of 4 and 5. Study 2 (7-14-year-olds and adults, n = 175) demonstrated this competence in a more complex task, additionally investigating whether children tailor their search to the statistical structure, that is, the distribution of cue values, in their search environment (e.g., how common long legs are). The results suggest high reliability in ignoring irrelevant cues (confirming the results from Study 1) and developmental patterns in children’s preferential treatment of cues of differing statistical frequency. Together, these studies contribute to the literature on information search adaptiveness by tracing for the first time the emergence and developmental trajectory of children’s ability to tailor predecisional search to the changing goals and environmental resources of the problem at hand. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

PMID:39172427 | DOI:10.1037/dev0001796

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Nevin Manimala Statistics

National disparities favoring males are reflected in girls’ implicit associations about gender and academic subjects

Dev Psychol. 2024 Aug 22. doi: 10.1037/dev0001797. Online ahead of print.

ABSTRACT

Based on data for N = 2,756 children (1,410 girls; Mage = 8.10 years) from 16 data sets spanning five nations, this study investigated relations between national gender disparities and children’s beliefs about gender and academic subjects. One national-level gender disparity involved inequalities in socioeconomic standing favoring adult males over females (U.N. Human Development Index). The other involved national-level gaps in standardized math achievement, favoring boys over girls (Trends in International Mathematics and Science Study Grade 4). Three novel findings emerged. First, girls’ results from a Child Implicit Association Test showed that implicit associations linking boys with math and girls with reading were positively related to both national male advantages in socioeconomic standing and national boy advantages in Trends in International Mathematics and Science Study. Second, these relations were obtained for implicit but not explicit measures of children’s beliefs linking gender and academic subjects. Third, implicit associations linking gender to academic subjects increased significantly as a function of children’s age. We propose a psychological account of why national gender disparities are likely to influence children’s developing implicit associations about gender and academic subjects, especially for girls. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

PMID:39172414 | DOI:10.1037/dev0001797

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Nevin Manimala Statistics

Development of temperament types from infancy to adolescence: Genetic and environmental influences with an economically and racially/ethnically diverse sample

Dev Psychol. 2024 Aug 22. doi: 10.1037/dev0001828. Online ahead of print.

ABSTRACT

Kagan theorized biologically based temperament types that are present in infancy, stable across development, and essential for understanding individual differences. Despite evidence, temperament research remains focused on a few prominent dimensions of temperament, without adequately addressing covariance among dimensions and temperament types. Using longitudinal twin data, we took a person-centered statistical approach to identify temperament types and examined continuity and change across five developmental periods (Ninfancy = 602; Ntoddlerhood = 522; Nearly childhood = 390; Nlate childhood = 718; Nearly adolescence = 700). We then examined the genetic and environmental etiology of temperament types. Twins were boys and girls (51-53% female), primarily Hispanic/Latinx (23-30%) and non-Hispanic/Latinx White (56-63%), and from socioeconomically diverse families (28-38% near-or-below the poverty line). Using latent profile analysis, we identified three temperament types at each age characterized by negative reactivity and dysregulation, positive reactivity and strong self-regulation, and moderate reactivity and regulation. Latent transition analyses revealed considerable continuity in membership type for “negative dysregulated” beginning in infancy, log odds = 1.58 (SE = .65) to 3.16 (SE = .77), p < .01, of remaining relative to transitioning to “typical expressive”, and “positive well-regulated” beginning in early childhood, log odds = 1.41 (SE = .56) to 2.25 (SE = .47), p < .05. Twin analyses revealed moderate heritability and a consistent role of the shared environment on positive well-regulated, with negative dysregulated and typical expressive also moderately heritable with the shared environment being important at some ages. Findings support the presence of theorized biologically based temperament types that develop rapidly in infancy and toddlerhood and provide a foundation for the study of individual differences and risk and resilience processes across the lifespan. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

PMID:39172413 | DOI:10.1037/dev0001828

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Nevin Manimala Statistics

Gender differences in sex drive: Reply to Conley and Yang (2024)

Psychol Bull. 2024 Aug;150(8):1011-1019. doi: 10.1037/bul0000444.

ABSTRACT

Our meta-analysis on gender differences in sex drive found a stronger sex drive in men compared to women (Frankenbach et al., 2022). Conley and Yang (2024) criticized how we interpreted the findings and provided suggestions regarding the origins of these gender differences, an undertaking that we had refrained from doing in our original work. We concur with several important points made by Conley and Yang (2024): (a) women’s sexual experiences are generally more negative than men’s, which could partly explain why men report more sex drive; (b) lack of statistical moderation by some sociocultural variables does not imply that the sex drives of men and women are generally unaffected by the social environment; and (c) gender differences in sexuality are likely smaller than they are often portrayed in research, and that the practical impact of this difference is largely unknown. Still, we reject other assertions made by Conley and Yang (2024): (a) we did not frame our findings in support of the view that gender differences in sex drive are determined by biology, (b) we did not conflate response bias with sociocultural biases more broadly, and (c) we did not fail to incorporate and consider gendered cultural messages about sexuality in our methods and discussion. We make several suggestions about future research on these matters. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

PMID:39172391 | DOI:10.1037/bul0000444

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Nevin Manimala Statistics

Depression, anxiety, and posttraumatic stress in women with and without brain injuries due to intimate partner violence: Psychometric evaluation of measurement approaches and group comparisons

Rehabil Psychol. 2024 Aug 22. doi: 10.1037/rep0000570. Online ahead of print.

ABSTRACT

PURPOSE/OBJECTIVE: The current study examined the psychometric properties of common mental health questionnaires among women survivors of intimate partner violence (IPV) with and without brain injuries due to IPV and evaluated whether women with and without IPV-related brain injuries differed in depression, anxiety, and posttraumatic stress disorder (PTSD) symptom severity.

RESEARCH METHOD/DESIGN: Women survivors of IPV with and without IPV-related brain injuries were recruited online through Prolific (N = 205, M = 39.8 ± 11.9 years old, 83.9% non-Hispanic White, 42.4% college-educated). They completed the eight-item Patient Health Questionnaire (PHQ-8), seven-item Generalized Anxiety Disorder scale (GAD-7), and PTSD Checklist for the Diagnostic and Statistical Manual of Mental Disorders (fifth edition) (PCL-5). Model fit and internal consistency were estimated for each scale. Groups were compared on mental health symptom severity, with and without controlling for age, education, and IPV severity.

RESULTS: Both one-factor and multifactor models showed excellent fit for all scales. PHQ-8 (ω = .91), GAD-7 (ω = .94), and PCL-5 total scores (ω = .95) had strong reliability, and all subscale scores had acceptable-to-strong reliability (ω range = .79-.94). Women with IPV-related brain injuries reported greater physical IPV severity, higher rates of depression, and higher somatic anxiety and PTSD symptom severity. No group differences in mental health symptoms were significant after controlling for IPV severity.

CONCLUSIONS/IMPLICATIONS: The PHQ-8, GAD-7, and PCL-5 showed evidence for reliability and validity among women survivors of IPV. Women with IPV-related brain injuries had higher PTSD symptom severity, attributable to greater physical violence exposure in general. Brain injury screening among survivors appears warranted for women with extensive physical IPV experiences. Interventions addressing PTSD, violence prevention, and brain injury recovery may best serve this population. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

PMID:39172371 | DOI:10.1037/rep0000570

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Nevin Manimala Statistics

Efficacy and Safety of Topical Roflumilast for the Treatment of Psoriasis: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Clin Drug Investig. 2024 Aug 22. doi: 10.1007/s40261-024-01368-w. Online ahead of print.

ABSTRACT

BACKGROUND AND OBJECTIVE: Plaque psoriasis is commonly treated topically with glucocorticoids and vitamin D derivatives. However, potential side effects such as skin atrophy underscore the need for safe and effective alternative topical therapies. Recently, the US Food and Drug Administration (FDA) and Health Canada approved roflumilast 0.3% cream as an option for treating this disease. A systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted to assess the efficacy and safety of topical roflumilast 0.3% compared with vehicle for plaque psoriasis.

METHODS: PubMed, Embase, ClinicalTrials.gov, and Cochrane databases were searched from inception to 1 May 2024, assessing the outcomes of Investigator’s Global Assessment (IGA) or body-IGA success (clear or almost clear status plus an at least 2-grade improvement from baseline), Psoriasis Area and Severity Index (PASI)-50, PASI-75, PASI-90, intertriginous-IGA success (clear or almost clear status on the intertriginous-IGA plus an at least 2-grade improvement from baseline), and adverse events (AEs). Statistical analysis was performed using Review Manager, R software, and RStudio. Heterogeneity was determined using the Cochran Q test and I2 statistics.

RESULTS: Four RCTs were included, comprising a total of 1403 patients, of whom 885 (63.1%) received topical roflumilast 0.3% and 518 (36.9%) received vehicle. At week 8, the achievement of IGA or body-IGA success was significantly higher among those treated with topical roflumilast than in the vehicle group [relative risk (RR) 5.07; 95% confidence interval (CI) 3.55-7.23; p < 0.01]. Similar findings were observed at week 8 for PASI-50 (RR 2.73; 95% CI 2.27-3.29; p < 0.01), PASI-75 (RR 4.48; 95% CI 2.26-8.89; p < 0.01), and PASI-90 (RR 5.61; 95% CI 2.57-12.25; p < 0.01). Corresponding outcomes were found at weeks 2, 4, and 6. Additionally, a higher percentage of patients treated with topical roflumilast 0.3% once daily achieved intertriginous-IGA success, compared with those receiving vehicle, at week 8 (71.9% versus 20.5%; RR 3.32; 95% CI 2.11-5.22; p < 0.01), with similar findings at weeks 2, 4, and 6. While a significant difference was observed in the overall incidence of AEs between the topical roflumilast and vehicle groups, there was no difference in treatment-related AEs, serious AEs, or AEs leading to study discontinuation.

CONCLUSION: These findings support the superiority of topical roflumilast 0.3% over vehicle and suggest its use as a valuable asset for the treatment of plaque psoriasis.

PROTOCOL REGISTRATION: International Prospective Register of Systematic Reviews (PROSPERO), CRD42023456494.

PMID:39172296 | DOI:10.1007/s40261-024-01368-w

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Nevin Manimala Statistics

The natural history of marginal erosions in hands with and without osteoarthritis

Clin Rheumatol. 2024 Aug 22. doi: 10.1007/s10067-024-07116-x. Online ahead of print.

ABSTRACT

INTRODUCTION/OBJECTIVES: Among people with or without hand osteoarthritis, we aimed to identify characteristics of people (e.g., age and gender) with marginal erosions (MEs). We also examined changes in MEs during 48 months. We described radiographic severity and progression among joints with MEs, changes in MEs, or central erosions (CEs).

DESIGN: We studied participants from the Osteoarthritis Initiative with baseline and 48-month hand radiographs. A radiologist and rheumatologist evaluated the radiographs for disease severity (Kellgren-Lawrence grades) and erosions (central or marginal), respectively. We used descriptive statistics to characterize participants and calculated frequencies at the joint level.

RESULTS: Of the 3558 participants, 89 had a ME at baseline. People with MEs were more often male, older, and ever (former and current) smokers than those without a ME. There was no difference in inflammatory biomarkers or the presence of hand pain between individuals with and without a baseline ME. Almost all hands had only one ME (80%), whereas only 50% of individuals with CEs had only one CE at baseline. Compared to CEs, MEs appeared more frequently in joints without osteoarthritis (54% vs. < 1%). Approximately 18% of joints with an ME progressed in Kellgren-Lawrence grade versus 4% without ME. Among the joints with an ME at baseline, 10% resolved by 48 months. Less than 0.1% of joints developed a new ME.

CONCLUSION: MEs appear to be distinct from CEs. MEs are predominantly present in males, isolated to one specific joint without osteoarthritis within a hand, and possibly predictive of radiographic progression. Key Points • Marginal erosions appear to be distinct from central erosions. • Most marginal erosions occur in joints without radiographic osteoarthritis. • Radiographic progression but not hand pain is more common in joints with a marginal erosion than without one.

PMID:39172292 | DOI:10.1007/s10067-024-07116-x

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Nevin Manimala Statistics

Does Maternal HIV Infection Affect Neonatal Outcomes?

Curr HIV Res. 2024 Aug 20. doi: 10.2174/011570162X292489240812065510. Online ahead of print.

ABSTRACT

BACKGROUND: Pregnancy among women infected with HIV is classified as a high-risk pregnancy. While previous research has indicated an elevated likelihood of preterm birth, low birth weight, and early gestational age in infants born to mothers with HIV, the correlation between maternal HIV infection and different neonatal results remains unclear.

OBJECTIVE: This study aims to investigate the impact of maternal HIV infection on after-birth neonatal outcomes using machine learning (ML) and statistical methods.

METHODS: A case-control study is conducted through a three-stage process: Initially, the outcomes among newborns from HIV-positive mothers are identified through a combination of literature review and expert survey. Subsequently, data are paired at a 1:2 ratio based on gestational age with infants from HIV-positive mothers (n=48) compared to HIV-negative mothers (n=96) as the control group. Finally, various feature selection techniques are applied to identify outcomes that exhibit significant differences between the two groups.

RESULTS: The statistical analysis showed that the rate of addiction among HIV-positive mothers is higher than that of the HIV-negative group. The need for mechanical ventilation and duration of ventilator-assisted breathing in infants born to HIV-positive mothers are significantly higher than in infants born to HIV-negative mothers. Moreover, based on feature selection methods, increasing the need for mechanical ventilation and reducing surfactant administration were two important outcomes.

CONCLUSIONS: To investigate the impact of maternal HIV infection on neonatal outcomes, various statistical and machine learning-based feature selection techniques were implemented, and the results showed that the presented methods can be utilized to examine the potential impacts of different diseases contracted by the mother on the infant.

PMID:39171478 | DOI:10.2174/011570162X292489240812065510

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Nevin Manimala Statistics

Mendelian Randomization Studies: Opening a New Window in the Study of Metabolic Diseases and Chronic Kidney Disease

Endocr Metab Immune Disord Drug Targets. 2024 Aug 20. doi: 10.2174/0118715303288685240808073238. Online ahead of print.

ABSTRACT

It is widely recognized that a strong correlation exists between metabolic diseases and chronic kidney disease (CKD). Based on bibliometric statistics, the overall number of Mendelian randomization (MR) analysis in relation to metabolic diseases and CKD has increased since 2005. In recent years, this topic has emerged as a significant area of research interest. In clinical studies, RCTs are often limited due to the intricate causal interplay between metabolic diseases and CKD, which makes it difficult to ascertain the precise etiology of these conditions definitively. In MR studies, genetic variation is incorporated as an instrumental variable (IV). They elucidate the possible causal relationships between associated risk factors and disease risks by including individual innate genetic markers. It is widely believed that MR avoids confounding and can reverse effects to the greatest extent possible. As an increasingly popular technology in the medical field, MR studies have become a popular technology in causal relationships investigation, particularly in epidemiological etiology studies. At present, MR has been widely used for the investigation of medical etiologies, drug development, and decision-making in public health. The article aims to offer insights into the causal relationship between metabolic diseases and CKD, as well as strategies for prevention and treatment, through a summary of MR-related research on these conditions.

PMID:39171476 | DOI:10.2174/0118715303288685240808073238