scholarly journals Crosslinguistic Sharing of Morphological Awareness in Biliteracy Development: A Systematic Review and Meta‐Analysis of Correlation Coefficients

2020 ◽  
Author(s):  
Sihui (Echo) Ke ◽  
Ryan T. Miller ◽  
Dongbo Zhang ◽  
Keiko Koda
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Morphological Awareness ◽  
Correlation Coefficients ◽  
Biliteracy Development

A Meta Analytic Review of the Relationship between Emotional Intelligence and Leadership Effectiveness

2019 ◽  
Vol 118 (9) ◽  
pp. 118-126
Author(s):  
Augusty P. A ◽  
Jain Mathew
Keyword(s):  
Systematic Review ◽  
Emotional Intelligence ◽  
Direct Relationship ◽  
Effective Leadership ◽  
Leadership Effectiveness ◽  
Meta Analysis ◽  
Correlation Coefficients ◽  
Review Of Literature ◽  
Analytic Review ◽  
The Relationship

The study evaluates the relationship between Emotional Intelligence and Leadership Effectiveness through a Systematic Review of Literature. The relationship has been evaluated in two steps. First, a Systematic review of literature was done to provide a theoretical framework to link the dimensions of Emotional Intelligence to the elements of effective leadership. Meta-analysis was then used to consolidate empirical evidence of the relationship. The studies for the meta-analysis were sourced from Pro Quest and EBSCO and the correlation coefficients of the studies were analysed. Only articles that presented the direct relationship between the variables were included in the study. The results of the analysis revealed a strong, statistically significant relationship between emotional intelligence and effective leadership. The findings of the study provide evidence for the proposition that Emotional Intelligence and Leadership Effectiveness are interrelated.

scholarly journals Correlation between disability measure and Black Hole (T1 hypointense lesion) lesion load in brain magnetic resonance imaging of patients with multiple sclerosis: Protocol for a systematic review and meta-analysis

2021 ◽  
Author(s):  
Amir Valizadeh ◽  
Elham Barati ◽  
Mohammad Ali Sahraian ◽  
Mohammad Reza Fattahi ◽  
Mana Moassefi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Multiple Sclerosis ◽  
Systematic Review ◽  
Web Of Science ◽  
Citation Index ◽  
Meta Analysis ◽  
Brain Magnetic Resonance Imaging ◽  
Correlation Coefficients ◽  
Resonance Imaging ◽  
Lesion Load

Abstract Rationale: As the role of neurodegeneration in the pathophysiology of multiple sclerosis (MS) has become more prominent, the formation and evolution of chronic or persistent T1-hypointense lesions (Black Holes) have been used as markers of axonal loss and neuronal destruction to measure disease activity. However, findings regarding this subject are controversial. In this study we aim to clarify the level of importance of T1 hypointense lesions for estimating the prognosis of patients.Objectives: To evaluate the correlation between T1 hypointensities (Black holes) lesion load (lesion mean volume) on brain MRI with disability level of patients with Relapsing-Remitting Multiple Sclerosis (RRMS) or Secondary-Progressive Multiple Sclerosis (SPMS).Data sources: We will search MEDLINE (through PubMed), Embase, CENTRAL, Science Citation Index – Expanded (Web of Science), and Conference Proceedings Citation Index – Science (Web of Science). We won’t consider any timeframe, language, or geographical restrictions.Methods: Standard systematic review protocol methodology is employed. Eligibility criteria is reported in line with PICOTS system. Population is limited to adult patients diagnosed with RRMS or SPMS, based on the McDonald criteria. Index (prognostic factor) of interest will be T1 hypointense (black hole) lesion mean volume (lesion load) on brain Magnetic Resonance Imaging (MRI). There will be no comparators. Outcome of interest will be the disability measure using Expanded Disability Status Scale (EDSS). For the timing domain, we will include studies only if the outcome was measured at the same time MRI was performed (or with a very close time interval between). Inpatient and outpatient settings will both be included. All included studies will be assessed for the risk of bias using a tailored version of the Quality In Prognosis Studies (QUIPS) tool. Extracted correlation coefficients will be converted to the Fisher’s z scale and a meta-analysis will be performed on the results. We will then convert back the results to correlation coefficients again for the sake of presentation. For the purpose of assessing heterogeneity we will use prediction intervals. If feasible, we will also try to perform subgroup and sensitivity analyses. We will also evaluate the publication bias using Funnel plots and assess the confidence in cumulative evidence using an adapted version of the GRADE for prognostic factor research.

scholarly journals Ideal Fertility in Iran: A Systematic Review and Meta-analysis

2019 ◽  
Vol 8 (1) ◽  
pp. 10-18
Author(s):  
Hajiieh Bibi Razeghi Nasrabad ◽  
Mohammad Jalal Abbasi-Shavazi
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Random Effect ◽  
Correlation Coefficients ◽  
Total Sample ◽  
Fertility Level ◽  
Number Of Children ◽  
Ideal Number ◽  
Cochran Test ◽  
The Ideal

Objectives: This study was conducted to estimate the mean ideal number of children and to determine the overall prevalence of childlessness, one child, two children, as well as three children and more as the ideal number of children in Iran. Further, the study investigated the effect size of the relationship between social factors and ideal fertility. Materials and Methods: To this end, a systematic review and meta-analysis was conducted on all studies on ideal fertility that were published from January 2000 to February 2018. Totally, 37 qualified papers and two national surveys were selected with a total sample size of 37,079 women. The degree of correlation between the ideal fertility and variables was calculated using Spearman’s correlation, Pearson’s correlation coefficient, and r by using MedCalc 17 software. Results: The pooled mean ideal fertility by the random effect was 2.25 in Iran. The results of the Cochran test and I2 statistics showed considerable heterogeneity regarding the prevalence of the ideal number of children (Q=1722.0911, P<0.0001, and I2 =97.62%). In addition, the proportions of childlessness, 1 child, 2 children, along with 3 children and more as the ideal parity were 0.83, 15.99, 56.092, and 22.26, respectively. The pooled correlation coefficients demonstrated that age, actual fertility, and the economic costs of children are the most important predictors of ideal fertility. Conclusions: Despite the differences in the actual fertility level in different regions of Iran, two children is the the predominant pattern of the number of desired children. This result implies a convergence of fertility ideals in Iran. If desirable conditions for childbearing are provided, fertility could be maintained at the replacement level.

scholarly journals Association between Body Composition and Bone Mineral Density in Children and Adolescents: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 18 (22) ◽  
pp. 12126
Author(s):  
Kai-Li Deng ◽  
Wan-Yu Yang ◽  
Jin-Li Hou ◽  
Hui Li ◽  
Hao Feng ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Systematic Review ◽  
Body Composition ◽  
Children And Adolescents ◽  
Bone Mineral ◽  
Meta Analysis ◽  
Correlation Coefficients ◽  
Regression Coefficients ◽  
Mineral Density ◽  
Total Body

Background: Bone mass acquisition during growth is a major determinant of the risk of developing osteoporosis later in life. Body composition is an anthropometric determinant of bone mineral density (BMD) and significantly influences its development during childhood and adolescence. Objective: This study aimed to systematically examine the association between body composition and bone mineral density in children and adolescents. Methods: Observational studies addressing this association were identified from PubMed (MEDLINE), Embase, Scopus and the Cochrane Library (up to January 2021). The study populations consisted of healthy children and adolescents. The DerSimonian and Laird method was used to compute pooled estimates of effect size and the respective 95% confidence intervals for upper limbs, femoral neck (FN), lumbar spine (LS) and total body, respectively. Subgroup analyses were further performed based on age, sex and ethnicity. Results: Thirty-one published studies were eligible for inclusion in this systematic review and meta-analysis, including three longitudinal studies. The combined population from all the studies amounted to 21,393 (11,205 males and 10,188 females). The pooled estimates of the correlation coefficients for lean mass (LM) and BMD ranged from 0.53 to 0.74 (p < 0.050), and the pooled regression coefficients ranged from 0.23 to 0.79 for FN, LS and total body (p < 0.050). For fat mass (FM), the pooled correlation coefficients ranged from 0.10 to 0.50 (p < 0.050) and the pooled regression coefficient was only significant for FN BMD with a weak strength (pooled β = 0.07, p < 0.050). The pooled regression coefficients for body fat percentage (BF%) were between −0.54 and −0.04 (p < 0.050). The subgroup analysis revealed a stronger association in Asians than in Caucasians for LM and in males compared to females for BF% (p < 0.050). Conclusions: This systematic review and meta-analysis supports a positive association between LM and BMD. BF% appears to have a deleterious effect on bone acquisition in children and adolescents.

scholarly journals Correlation between Bone Turnover Markers and Bone Mineral Density in Patients Undergoing Long-Term Anti-Osteoporosis Treatment: A Systematic Review and Meta-Analysis

2020 ◽  
Vol 10 (3) ◽  
pp. 832 ◽  
Author(s):  
Lingyun Hong ◽  
Dan Liu ◽  
Feng Wu ◽  
Meiqi Wang ◽  
Yu Cen ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Systematic Review ◽  
Meta Analysis ◽  
Correlation Coefficients ◽  
Type I ◽  
Mineral Density ◽  
Time Duration ◽  
Subgroup Analyses ◽  
Turnover Markers

This systematic review and meta-analysis aimed to evaluate the correlations between the bone turnover markers (BTMs) and the bone mineral density (BMD) in patients treated for primary osteoporosis and to identify promising BTMs for the prediction of future BMD changes. The PubMed, EMBASE, Cochrane Library, and Web of Science databases were searched for relevant studies that investigated the relationship between the BTMs and the BMD changes in patients treated for osteoporosis. All significant correlation coefficients of the baseline BTMs or changes in BTMs from baseline with the BMD changes from baseline under different interventions from eligible studies were used for systematic review and the subgroup analyses. The correlations were analyzed in terms of bone sites, intervention, time duration of BTMs measurements, and time duration of BMD measurements. Twenty-two records reporting correlation coefficients and the corresponding p-values were included, 13 of which were enrolled in the further subgroup analyses. The combined results from the systematic review and meta-analyses indicated that the changes in osteocalcin (OC), procollagen type I N propeptide (PINP), and urine N-terminal crosslinking telopeptide of type I collagen (U-NTX), or the PINP at baseline tended to be useful in evaluating the long-term BMD changes after drug intervention.

scholarly journals Association between health literacy and mortality: a systematic review and meta-analysis

2021 ◽  
Vol 79 (1) ◽  
Author(s):  
Zhao-ya Fan ◽  
Yuan Yang ◽  
Fan Zhang
Keyword(s):  
Systematic Review ◽  
Health Literacy ◽  
English Language ◽  
Meta Analysis ◽  
Correlation Coefficients ◽  
Functional Health ◽  
Risk Of Death ◽  
Number Of Patients ◽  
Increased Risk ◽  
Newcastle Ottawa Scale

Abstract Background To identify the relationship between health literacy (HL) and mortality based on a systematic review and meta-analysis. Methods Literature published from database inception until July 2020 was searched using the PubMed and Web of Science databases, using relevant keywords and clear inclusion and exclusion criteria. The search was limited to English language articles. Two reviewers independently selected studies and extracted data. Pooled correlation coefficients and their 95% confidence intervals (CI) between HL and mortality were estimated using Stata 15.0 software. Potential sources of heterogeneity were explored using subgroup analysis, sensitivity analysis, and meta-regression. Quality of the original studies that were included in the meta-analysis was evaluated using the Newcastle–Ottawa Scale. A funnel plot and Egger’s test were used to determine whether significant publication bias was present. Results Overall, 19 articles were included, reporting on a total of 41,149 subjects. Eleven were prospective cohort studies, and all articles were considered “good” quality. The most used screening instruments were the short Test of Functional Health Literacy (S-TOFHLA) in Adults and the Brief Health Literacy Screen (BHLS). Among 39,423 subjects (two articles did not report the number of patients with low HL), approximately 9202 (23%) had inadequate or marginal HL. The correlation coefficient between HL and mortality was 1.25 (95%CI = 0.25–0.44). Conclusion Lower HL was associated with an increased risk of death. This finding should be considered carefully and confirmed by further research.

Survival impact of post-progression chemotherapy (post-Cx) in advanced gastric cancer (AGC): Systematic review and meta-analysis.

2018 ◽  
Vol 36 (4_suppl) ◽  
pp. 130-130
Author(s):  
Sakura Iizumi ◽  
Atsuo Takashima ◽  
Kentaro Sakamaki ◽  
Satoshi Morita ◽  
Narikazu Boku
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Correlation Coefficients ◽  
Progression Free Survival ◽  
Patient Characteristics ◽  
Phase Iii ◽  
Survival Outcomes ◽  
Meta Regression Analysis ◽  
Spearman’S Correlation ◽  
Line Chemotherapy

130 Background: We conducted a systematic review and meta-analysis to assess the survival impact of post-Cx after first-line chemotherapy (1st-line Cx) and second-line chemotherapy (2nd-line Cx) for AGC. Methods: Phase III trials published in English between 2005 and 2015 or presented at annual meetings of ASCO or ESMO between 2013 and 2015 were searched. No. of patients, types of chemotherapy, and patient characteristics, proportion of post-Cx use (post-Cx%), median progression free survival (mPFS), and median overall survival (mOS) of each treatment arm were surveyed; trials not reporting these were excluded from the study. Median post-progression survival (mPPS) was calculated as difference between mOS and mPFS. Weighted Spearman's correlation coefficients between post-Cx% and survival outcomes (mOS and mPPS) were calculated. The effect of post-Cx% on survival outcomes adjusted for the types of chemotherapy and patient characteristics was evaluated by meta-regressions. Results: Overall, 25 trials were selected: 15 with 31 arms for 1st-line Cx, and 10 with 16 arms for 2nd-line Cx. Weighted Spearman's correlation coefficients between post-Cx% and mOS/mPPS were 0.520/0.739 for 1st-line Cx, and 0.767/0.823 for 2nd-line Cx, respectively. Meta-regression analysis adjusting for types of chemotherapy, age and PS, showed that 10% increase in post-Cx% was associated with prolongation of mOS by 1.033 months for 1st-line Cx and 0.34 months for 2nd-line Cx. Conclusions: Post-Cx% after 2nd-line Cx are correlated with mPPS and mOS as well as 1st-line Cx, suggesting a survival benefit of 3rd-line Cx. [Table: see text]

scholarly journals Instruments to measure fear of COVID-19: a diagnostic systematic review

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ashley Elizabeth Muller ◽  
Jan Peter William Himmels ◽  
Stijn Van de Velde
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Correlation Coefficients ◽  
Sampling Strategy ◽  
Normative Values ◽  
Study Quality ◽  
Publication Type ◽  
Common Reference ◽  
Control And Prevention ◽  
Political Economic

Abstract Background The COVID-19 pandemic has become a source of fear across the world. Measuring the level or significance of fear in different populations may help identify populations and areas in need of public health and education campaigns. We were interested in diagnostic tests developed to assess or diagnose COVID-19-related fear or phobia. Methods We performed a systematic review of studies that examined instruments diagnosing or assessing fear or phobia of COVID-19 (PROSPERO registration: CRD42020197100). We utilized the Norwegian Institute of Public Health’s Live map of covid-19 evidence, a database of pre-screened and pre-categorized studies. The Live map of covid-19 evidence identified references published since 1 December 2019 in MEDLINE, Embase, and the Centers for Disease Control and Prevention. Following biweekly searches, two researchers independently categorized all studies according to topic (seven main topics, 52 subordinate topics), population (41 available groups), study design, and publication type. For this review, we assessed for eligibility all studies that had been categorized to the topic “Experiences and perceptions, consequences; social, political, economic aspects” as of 25 September 2020, in addition to hand-searching included studies’ reference lists. We meta-analyzed correlation coefficients of fear scores to the most common reference tests (self-reports of anxiety, depression, and stress), and reported additional concurrent validity to other reference tests such as specific phobias. We assessed study quality using the QUADAS-2 for the minority of studies that presented diagnostic accuracy statistics. Results We found 18 studies that validated fear instruments. Fifteen validated the Fear of COVID-19 scale (FCV-19S). We found no studies that proposed a diagnosis of fear of COVID-19 or a threshold of significant/clinical versus non-significant/subclinical fear. Study quality was low, with the most common potential biases related to sampling strategy and un-blinded data analysis. The FSV-19S total score correlated strongly with severe phobia (r = 0.703, 95%CI 0.634–0.761) in one study, and moderately with anxiety in a meta-analysis. Conclusions The accuracy of the FSV-19S needs to be measured further using fear-related reference instruments, and future studies need to provide cut-off scores and normative values. Further evaluation of the remaining three instruments is required.

scholarly journals The Relation Between Cortisol and Anthropometric Measurements Throughout Lifespan: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A30-A30
Author(s):  
Eline S van der Valk ◽  
Ozair Abawi ◽  
Mostafa Mohseni ◽  
Amir Abdelmoumen ◽  
Vincent L Wester ◽  
...  
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Correlation Coefficients ◽  
Population Based ◽  
Population Characteristics ◽  
Central Adiposity ◽  
Cross Sectional ◽  
Random Effects Models ◽  
Outcome Information

Abstract Introduction: Recently, cross-sectional studies report associations between long-term glucocorticoid levels in scalp hair (HairGC) and obesity. However, there is a wide variation in studied outcomes and associations, possibly caused by differences in population characteristics, e.g. age, sex, dispersion of adiposity, and used laboratory methods. The aim of this systematic review and meta-analysis was to investigate the relation between HairGC and anthropometrics and to explore possible moderators of this association. Methods: We searched the Medline, Embase, Cochrane, Web of Science, Scopus, Cinahl, PsycInfo, and Google Scholar databases for articles that relate HairGC to measures of adiposity (date 11-16-2020). Primary outcomes were correlations between hair cortisol (HairF) and cortisone (HairE), and anthropometrics: BMI, waist circumference (WC) and waist-hip-ratio (WHR). Authors were contacted to provide missing outcome information. Pooled correlation coefficients were calculated using random effects models. Assessment of heterogeneity was performed using the I2 statistic. Exploratory moderator analyses were performed with subgroup analyses and meta-regression. This systematic review was performed in accordance to the PRISMA guidelines. Results: Our systematic search identified 150 cohorts, comprising a total of 37,107 unique individuals, of which 15,033 sampled from population-based cohorts. For BMI, the pooled correlation for HairF was 0.121 (95% CI 0.083–0.158, n=26,941; I2 94.2%, p&lt;0.001) and for HairE 0.108 (95% CI 0.047–0.167, n=7,250; I2 52%, p&lt;0.01). For WC, the pooled correlation for HairF was 0.111 (95% CI 0.058–0.164, n=10,290; I2 63%, p&lt;0.01) and for HairE 0.200 (95% CI 0.137–0.264, n=2,198; I2 0%, p=0.42). For WHR, the pooled correlation for HairF was 0.102 (95% CI 0.040–0.163, n=6,865; I2 27%, p=0.14) and for HairE 0.261 (95% CI 0.195–0.330, n=1,314; I2 0%, p=0.40). A higher percentage of male participants was related to stronger correlations with WC (p&lt;0.001), but not with BMI and WHR. Mean age, mean BMI, and mean HairGC levels of the cohorts did not significantly moderate the pooled correlations, neither did the used laboratory techniques (immunoassays vs mass spectrometry-based assays). Conclusion: This unique, large meta-analysis demonstrates that long-term endogenous glucocorticoids as assessed by HairGC show small but consistent correlations to measures of obesity, despite a large heterogeneity between the included cohorts. The strongest associations were found between HairE and WC and between HairE and WHR. This suggests that glucocorticoid levels in the high-normal range, especially cortisone, may contribute to or reflect the state of specifically central adiposity, even within the general population.

scholarly journals Subjective versus Objective Measure of Physical Activity: A Systematic Review and Meta-Analysis of the Convergent Validity of the Physical Activity Questionnaire for Children (PAQ-C)

2021 ◽  
Vol 18 (7) ◽  
pp. 3413
Author(s):  
Danilo Marasso ◽  
Corrado Lupo ◽  
Simone Collura ◽  
Alberto Rainoldi ◽  
Paolo Riccardo Brustio
Keyword(s):  
Physical Activity ◽  
Systematic Review ◽  
Effect Size ◽  
Convergent Validity ◽  
Meta Analysis ◽  
Vigorous Physical Activity ◽  
Correlation Coefficients ◽  
Physical Activity Questionnaire ◽  
The Relationship ◽  
Activity Questionnaire

This study aimed to highlight the relationship between moderate-to-vigorous physical activity (MVPA) as assessed by accelerometer devices and the Physical Activity Questionnaire for Children (PAQ-C) to estimate the convergent validity of the questionnaire. A systematic review and a meta-analysis were applied by collecting pertinent studies (PubMed, Web of Science, PsycINFO, and SCOPUS) from 1997 until November 2020. The relationship between PAQ-C and MVPA scores was estimated considering correlation coefficients such as the effect size. Fisher’s transformation was used to convert each correlation coefficient into an approximately normal distribution. The pooled correlations between PAQ-C and MVPA scores were measured by r values after converting the Fisher’s z values back into correlation coefficients for presentation. A total of 13 studies were included in the meta-analysis, and a random effects model was adopted. The pooled correlation between PAQ-C and MVPA scores was significant but with a moderate effect size (r = 0.34 [0.29, 0.39], Z = 15.00, p < 0.001). No heterogeneity among the studies was observed (I2 < 25%). In conclusion, the results highlighted a moderate relationship (around 0.30–0.40) between PAQ-C and accelerometer measurements. These results suggested to concurrently administer both tools to reach a more comprehensive description of children’s PA, in terms of quality and quantity.

Sign in / Sign up

Export Citation Format

Share Document