• Title/Summary/Keyword: Qualitative Meta Analysis

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The effect of walnut (Juglans regia L.) intake on improvement of blood lipid levels and vascular health: A meta-analysis (호두의 혈중 지질 수준 및 혈관 건강 개선 기능성 평가: 메타분석)

  • Kwak, Jin Sook;Park, Min Young;Kwon, Oran
    • Journal of Nutrition and Health
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    • v.47 no.4
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    • pp.236-246
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    • 2014
  • Purpose: Walnut is known to have unique favorable fatty acids, phytochemicals, and other nutrient profiles. As a result, there has been growing interest in evaluation of its health benefit related to cardiovascular disease (CVD). Although inverse associations of nut consumption and risk factors of cardiovascular disease have been reported in many epidemiological studies and qualitative reviews, few meta-analysis studies have been reported. This meta-analysis was conducted in order to evaluate the effect of a walnut-enhanced diet on CVD risk factors. Methods: We searched Pubmed, Cochrane, Science Direct, and KISS (Korean studies Information Service System) through July 2014. A random-effects meta-analysis was conducted on 17 trials reporting total cholesterol (TC), 14 trials reporting LDL cholesterol (LDL-C), 15 trials reporting HDL cholesterol (HDL-C), 17 trials reporting triglyceride (TG), and four trials reporting flow-mediated dilation (FMD). Results: In meta-analysis, intake of a walnut-enhanced diet resulted in significantly lowered TC, LDL-C, and TG by -0.124 mmol/l (95% CI, -0.209, -0.039; p = 0.004), -0.085 mmol/lL (95% CI, -0.167, -0.004; p = l0.039), and -0.080 mmol/l (95% CI, -0.155, -0.004; p = 0.039), respectively. The overall pooled estimate of the effect on FMD was +1.313% (95% CI, 0.744, 1.882, p = 0.000). HDL-C was not affected by walnut intake. No statistical heterogeneity was observed for any analysis. Results of funnel plots and Egger's regression suggested a low likelihood of publication bias in all biomarkers (p > 0.05). Conclusion: Findings of this meta-analysis provide consistent evidence that walnut-enhanced diet intake reduces the CVD risk factors.

Effect of Rehabilitation Intervention for Lifestyle Improvement of Spinal Cord Injury: Systematic Review of Randomized Controlled Trials and Meta-Analysis (척수 손상 환자의 라이프 스타일 개선을 위한 재활 중재 효과: 무작위 대조군 연구의 체계적 고찰 및 메타분석)

  • Ha, Sung Kyu;Park, Hae Yean
    • Therapeutic Science for Rehabilitation
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    • v.9 no.4
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    • pp.107-120
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    • 2020
  • Objective : The purpose of this study was to investigate the effectiveness and basis of rehabilitation intervention in patients with spinal cord injury by systematic review and meta-analysis of randomized controlled studies. Methods : Two researchers independently searched and selected a study published in an academic journal using a search term in an international thesis database. A total of 21 studies met the selection criteria, and qualitative evaluation of the study was conducted using the PEDro Scale. Meta-analysis was performed using Comprehensive Meta-Analysis 3.0 program. Results : A total of 713 subjects were included. The results of the meta-analysis showed a score of 0.406 (95.0% confidence interval: 0.221 ~ 0.591) for intervention using physical activity and 0.505 (95.0% confidence interval: 0.449 ~ 1.528) for electronic stimulation therapy, which showed medium effect; educational intervention had a 0.248 (95.0% confidence interval: 0.033 ~ 0.464), and mixed intervention 0.280 (95.0% confidence interval: 0.122 ~ 0.438). It was shown that the effect of small (small). There was a significant heterogeneity in the statistical heterogeneity test, and thus the random effects model was selected and analyzed. Conclusion : The results showed that rehabilitation interventions were effective for patients with spinal cord injury. During the rehabilitation of spinal cord injury patients, clinicians are expected to contribute to the development of programs to improve their lifestyles.

Qualitative Study on Group Decision Making with Synchronous Text Communication Medium (동시적 텍스트 기반 매체를 이용한 집단의사결정에 관한 질적 연구)

  • Park Sanghyuk;Cho Namjae
    • Journal of Information Technology Applications and Management
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    • v.11 no.4
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    • pp.1-23
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    • 2004
  • This study identifies communication patterns of groups using synchronous text communication medium for their group decision-making, and examines how these patterns are associated with creative solutions to problems. Our research suggests that certain communication behavior of groups, when appropriately organized, can be of help in enhancing creative production of outcomes. A qualitative study was conducted on communication patterns based on an analysis of text-based electronic conversation protocols. Specifically this research tried to overcome existing studies on electronic groups by focusing on interactive process of communication among participants. The major study conclusion; are: (1) The production of creative outcome may depend on the process or sequence of discussion among group members with synchronous text communication medium. That is, proper interactive responses and appropriate control of the discussion process are essential to obtain a high level of performance. (2) It is importantto make discuss rules based on meta-cognitive and interactive protocols in the early stage. Explicit rules relating to internal group processes as well as communication medium use are even more important to groups with electronic communication medium than face-to-face groups.

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Trends in Research on Communication and Media in Indonesia: The Micro Meta-Analysis on Perspective, Theory, and Methodology

  • Bajari, Atwar
    • Asian Journal for Public Opinion Research
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    • v.5 no.1
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    • pp.41-62
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    • 2017
  • The political reformation in Indonesia is a determinant factor of the change in political communications and the roles of media. Currently, the political elites need media support, since it contextually has a significant role. Whoever has a good relationship with the media, will be loved by the public. On the other hand, the media also have a vested interest in the elite in running businesses and building the power of industry. Policies and capital pose a challenge to maintaining the continuity of the media. Independence and control of media are at stake, when the interests of the media and the elite collaborate with each other and then build a benefit on both sides. Meanwhile, the role of social media also cannot be neglected. The Indonesian political communication system is characterized by the presence of social media in a pseudo-relationship between the elite and the public. This paper tries to explain the growing trends of research in the academic environment and the research trends in political practice in Indonesia after the occurrence of post-reformation era in legislative and executive elections. The method used is the meta-analysis of research outcomes of university (dissertations) and secondary data sources. Data processing is done by meta-analysis of secondary data. The results of meta-analysis research indicate that, the objective conditions, in Indonesia, especially the political conditions, stimulate new spaces in communication research. The study of political communication becomes dominant in the academic environment. In addition, communication research is also characterized by a shift from the linear perspective (positivistic paradigm) to the interactive perspective (naturalistic paradigm). On the other hand, the development of politic and governance situations in Indonesia has prompted the establishment of polling agencies that help citizens understand the maps of political power and candidates in general elections and regional head elections.

Effects of Computer Based Virtual Reality Program on Clinical Rehabilitation in Korea: A Meta-analysis (컴퓨터 기반 가상현실 프로그램의 국내 임상재활 적용 효과: 메타분석)

  • Kwon, Jae-Sung
    • Journal of Digital Convergence
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    • v.13 no.7
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    • pp.293-304
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    • 2015
  • Meta-analysis was conducted to examine effects of computer based virtual reality on clinical rehabilitation in Korea. The data were analyzed as the ICF categorizations. The papers used in this study were located through domestic data search engines. The fifteen studies were selected among the studies published between 1995 and 2014. The PEDro score was used for qualitative assessment. The sample size and the average and standard deviations of pre and post tests were analyzed through a meta-analysis. The PEDro scores of the selected studies were 6 points higher and 338 participants were involved. The effect size of combined data was 1.030, activities and participation 1.120, sensory function 1.199 as indicated by a "large effect size" and the effect size of mental function was 0.557 as indicated by a "medium effect size." As a result, virtual reality program as a adjunctive therapeutic methods has proven the effect. In particular, the effects were demonstrated in activities and participation, sensory function. However there was no evidence of the effectiveness of mental function.

Trends and Meta-Analysis of Research on the Operation of Programs for Bereaved Families in South Korea

  • Myung-Nam Lee;Jung Won Suk;Hyunsook Zin Lee
    • Journal of Hospice and Palliative Care
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    • v.26 no.3
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    • pp.126-139
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    • 2023
  • Purpose: This study aimed to analyze interventions for bereaved families and evaluate their effectiveness, with the ultimate goal of supporting evidence-based nursing for bereaved families. Methods: Research trends were identified based on a search of domestic databases from January 2000 to December 2022, and a meta-analysis was conducted on interventions for bereaved families. Forty-five papers were selected, and information was extracted on participants, research design, and interventions. A meta-analysis of seven papers was performed, and the effect size was calculated. Results: Fourteen papers dealt with interventions for middle-aged women who had lost their spouses, 20 used qualitative research methods, and 20 were on art therapy programs. Thirty studies had fewer than 10 participants, and most interventions had 60~120 minutes per session and 9~16 sessions in total. There were seven randomized controlled trials, and all studies included in the quality evaluation showed a low risk of bias. Four papers measured grief as an outcome, and the effect size was -1.9577 (95% CI: -2.9206 to -0.9947), indicating that the treatment significantly decreased grief (P<0.001). Six papers measured depression as an outcome, and the effect size was -1.6775 (95% CI: -2.1835 to -1.1716), showing that the treatment significantly decreased depression (P<0.001). Conclusion: Intervention programs for bereaved families were shown to be effective in relieving grief and depression. However, programs should be developed that target middle-aged men who have lost their spouses and children who have lost their parents. Randomized controlled trials should also be conducted on interventions to reduce grief and depression.

Periodontal health status, oral microbiome, white-spot lesions and oral health related to quality of life-clear aligners versus fixed appliances: A systematic review, meta-analysis and meta-regression

  • Ana Sandra Llera-Romero;Milagros Adobes-Martin;Jose Enrique Iranzo-Cortes;Jose Maria Montiel-Company;Daniele Garcovich
    • The korean journal of orthodontics
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    • v.53 no.6
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    • pp.374-392
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    • 2023
  • Objective: Assess and evaluate the different indicators of oral health-related quality of life (OHRQoL) among patients treated with clear aligners (CAs) versus those treated with conventional fixed orthodontics (FAs). Methods: An electronic search was performed on the database is Web of Science, Scopus, and Embase databases. Randomized and non-randomized control trials, cross-sectional, prospective cohort and retrospective trials were included. Quality was assessed with risk of bias tool and risk of bias in non-randomised studies. Meta-analyses were performed with random effects models, estimating the standardized and non-standardized mean differences, odds ratio and risk ratio as the measure of effect. The effect on time was determined using a meta-regression model. Results: Thirty one articles were included in the qualitative synthesis and 17 in the meta-analysis. CAs had a significantly lower negative impact on QoL, with an "important" effect size, while the influence of time was not significant. Periodontal indicators plaque index (PI), gingival index (GI), probing depth (PD), and bleeding on probing show significantly better values in patients treated with CAs, with moderate to large effect sizes. PI and GI have a significant tendency to improve over time. In microbiological indicators, CAs present a lower biofilm mass without differences in the percentage of patients with high counts of Streptococcus mutans and Lactobacilli bacteria. The risk of white spot lesion onset is ten times lower in carriers of CAs. Conclusions: Patients wearing CAs show better periodontal indicators, less risk of white spot development, less biofilm mass and a better QoL than patients with FAs.

Reporting Qualitative Research of Systematic Review in the Journal of Korean Medicine Rehabilitation According to Preferred Reporting Items for Systematic Reviews and Meta-Analyses 2020 Guidelines (PRISMA 2020 지침에 근거한 한방재활의학과학회지 체계적 문헌고찰 보고의 질 평가 연구)

  • Na, Hyeon-Uk;Park, Shin-Hyeok;Woo, Hyeon-Jun;Han, Yun-Hee;Geum, Ji-Hye;Lee, Jung-Han;Ha, Won-Bae
    • Journal of Korean Medicine Rehabilitation
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    • v.32 no.3
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    • pp.85-107
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    • 2022
  • Objectives The purpose of this study was to assess the reporting quality of systematic reviews and meta-analyses in the Journal of Korean Medicine Rehabilitation (JKMR) using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines. Methods Systematic reviews and meta-analyses in JKMR, published from January 1991 to January 2022, were selected by searching the Korean studies Information Service System and JKMR homepage. Two independent researchers searched and selected systematic reviews and meta-analyses and evaluated the reporting quality of abstracts and main texts using the PRISMA 2020 guidelines. Results Of 1,515 articles, 39 systematic reviews were finally included for assessment. Evaluation of abstracts resulted in 2 studies rated as high, 11 studies rated as moderate, and 26 studies rated as low. A maximum of 83.3% and a minimum of 25.0% of the items were reported in the abstracts. Evaluation of the manuscripts resulted in no studies rated as high, 14 studies rated as moderate, and 25 studies rated as low. A maximum of 67.9% and a minimum of 34.1% of the items were reported in the manuscripts. Conclusions To improve the quality of systematic reviews published in JKMR, it is necessary to conduct systematic reviews based on the PRISMA 2020 guidelines.

Effect of Robot-Assisted Wearable Exoskeleton on Gait Speed of Post-Stroke Patients: A Systematic Review and Meta-Analysis of a Randomized Controlled Trials

  • Chankyu Kim;Hyun-Joong Kim
    • Physical Therapy Rehabilitation Science
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    • v.11 no.4
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    • pp.471-477
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    • 2022
  • Objective: The greatest motor impairment after stroke is a decreased ability to walk. Most stroke patients achieve independent gait, but approximately 70% do not reach normal speed, making it difficult to reach a standard of daily living. Therefore, a wearable exoskeleton is recommended for optimal independent gait because different residual disorders hinder motor function after stroke. This review synthesized the effect on gait speed in randomized controlled trials (RCTs) in which gait training using a wearable exoskeleton was performed on post-stroke patients for qualitative and quantitative analysis. Design: A systematic review and meta-analysis of a randomized controlled trials Methods: RCTs using wearable exoskeletons in robotic rehabilitation of post-stroke patients were extracted from an international electronic database. For quality assessment and quantitative analysis, RevMan 5.4 was used. Quantitative analysis was calculated as the standardized mean difference (SMD) and presented as a random effect model. Results: Five studies involving 197 post-stroke patients were included in this review. As a result of the analysis using a random effect model, gait training using a wearable exoskeleton in post-stroke patients showed a significant improvement in gait speed compared to the non-wearing exoskeleton (SMD=1.15, 95% confidence interval: 0.52 to 1.78). Conclusions: This study concluded that a wearable exoskeleton was more effective than conventional gait training in improving the gait speed in post-stroke patients.

Periodontal parameters in orthodontically tractioned teeth: A systematic review and meta-analysis

  • de Mattos, Paola Marques;Goncalves, Flavio Magno;Basso, Isabela Bittencourt;Ferraz, Aline Xavier;Zeigelboim, Bianca Simone;Stechman-Neto, Jose;Santos, Rosane Sampaio;de Araujo, Cristiano Miranda;Guariza-Filho, Odilon
    • The korean journal of orthodontics
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    • v.52 no.6
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    • pp.420-431
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    • 2022
  • Objective: This systematic review aimed to evaluate periodontal parameters in orthodontically tractioned teeth compared with the respective non-tractioned contralateral teeth. Methods: Search strategies were developed for six electronic databases and gray literature. Random-effects meta-analyses were performed for the outcomes of interest. Furthermore, the certainty of the evidence was assessed using the GRADE (Grading of Recommendations Assessment, Development, and Evaluation) tool. Results: Overall, 2,082 articles were identified, of which 24 were selected for the qualitative synthesis. A significant difference was observed between the impacted and contralateral teeth (mean difference [MD] = 0.25; 95% confidence interval [CI] = 0.10-0.40; I2 = 0%) when the gingival index was evaluated. Additionally, impacted teeth showed a greater probing depth, with a significant mean difference between the groups (MD = 0.14; 95% CI = 0.07-0.20; I2 = 6%). Most studies had a low risk of bias; however, the certainty of the evidence was very low owing to the design of existing studies. Conclusions: The evidence in the literature indicated that tractioned teeth might show worsening of periodontal parameters related to the gingival index and probing depth; however, the evidence remains uncertain about this outcome. Furthermore, probing depth should be considered regarding its clinical significance because of the small effect size observed.