Publications by authors named "Seung Kwon Myung"

Previous cohort studies have shown conflicting findings on the associations between obesity and the risk of thyroid cancer. This meta-analysis aimed to investigate the associations between them by using a meta-analysis of cohort studies. PubMed and EMBASE were searched using keywords from inception until November 2023 to identify relevant studies on this topic.

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Although several observational studies have reported a link between the use of underarm cosmetic products and the risk of breast cancer, the findings remain inconsistent. This study aimed to investigate these associations using a meta-analysis of observational studies. In the meta-analysis of seven case-control studies, we found no association between the use of underarm antiperspirants or deodorants and the risk of breast cancer (OR = 0.

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The recommended dietary allowance (RDA) for vitamin C differs greatly (40-110 mg/d) across countries. In addition, vitamin D deficiency is, effectively, a pandemic, with a prevalence of approximately 25% to 80% across countries according to the findings in the recent scientific literature. However, these phenomena are attributable to a serious error in the concept and definition of RDA, which was developed in 1941.

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Background And Objectives: Previous prospective studies have reported inconsistent findings on the associ-ation between obesity and mortality in patients with COVID-19. This study aimed to investigate the associa-tion between them by using a meta-analysis of prospective studies.

Methods And Study Design: We searched PubMed and EMBASE to retrieve studies using keywords related to this topic on January 3, 2022.

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Although proton pump inhibitors (PPIs) are widely used in the treatment of various acid-related disorders, observational studies have raised concern about an association between PPI use and the risk of gastrointestinal cancer. The present study aimed to investigate the association between them using a meta-analysis of cohort studies. PubMed and Excerpta Medica dataBASE were searched from inception to December 2022 to identify relevant cohort studies.

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Previous cohort studies reported inconsistent findings regarding the association between dietary or supplementary vitamin C intake and lung cancer risk. These associations were investigated by conducting a meta-analysis of cohort studies. The PubMed and EMBASE databases were utilized, using keywords related to the topic from inception to April 15, 2022.

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Introduction: Previous observational studies have reported inconsistent findings on the association between consumption of sugar-sweetened soft drinks (SSSDs) and the risk of gastrointestinal (GI) cancer. This study investigated the associations between SSSD consumption and the risk of GI cancer using a systematic review and meta-analysis.

Methods: Observational epidemiological studies were searched from the PubMed and EMBASE databases until June 2021.

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Systematic reviews and meta-analyses have become central in many research fields, particularly medicine. They offer the highest level of evidence in evidence-based medicine and support the development and revision of clinical practice guidelines, which offer recommendations for clinicians caring for patients with specific diseases and conditions. This review summarizes the concepts of systematic reviews and meta-analyses and provides guidance on reviewing and assessing such papers.

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Article Synopsis
  • Recent research indicates that the oral microbiome might significantly contribute to the initiation and progression of cancer, though the exact causal mechanisms remain unclear.
  • A study involving 309 cancer patients and 745 healthy controls identified six specific bacterial genera linked to various cancers, with notable shifts in their abundance between groups.
  • The findings suggest that changes in oral microbiota could lead to lower levels of beneficial short-chain fatty acids and upregulation of inflammatory markers in cancer patients, which may heighten cancer risk through an activated immune response.
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Unlabelled: Previous randomized controlled trials have reported inconsistent findings regarding the effects of high-dose vitamin D supplementation on a risk of falls and fractures. This meta-analysis of 15 trials shows that intermittent or single high-dose vitamin D supplementation had no preventive effect on the risk of falls and fractures and might even increase the risk of falls.

Purpose: Randomized controlled trials (RCTs) have reported controversial findings regarding the associations between intermittent or single high-dose vitamin D supplementation and a risk of falls and fractures in adults.

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Article Synopsis
  • A meta-analysis was conducted on 17 observational studies (13 case-control and 4 cohort) to evaluate the relationship between seafood intake and thyroid cancer risk, involving 4,309 thyroid cancer patients out of 599,161 participants.
  • The overall findings indicated no significant association between seafood consumption and thyroid cancer risk (OR 1.01; 95% CI: 0.86 to 1.19).
  • However, subgroup analyses revealed conflicting results: case-control studies suggested a protective effect (OR 0.94), while cohort studies indicated a potential increased risk (OR 1.14), suggesting the need for more rigorous prospective cohort studies to clarify these associations.
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Introduction: Electronic cigarette (EC) advertisements remain unregulated and approach consumers in TV commercials, print ads, radio, and other forms of digital marketing.

Aims And Methods: This study aimed to assess whether exposure to EC advertisements is associated with the use of EC by using a meta-analysis of prospective studies. We searched PubMed, EMBASE, and Web of Science to locate eligible studies in November 2021.

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Background: It remains unclear whether coffee intake is associated with the risk of hypertension. This study aimed to investigate the association between coffee intake and the risk of hypertension by using a meta-analysis of cohort studies.

Methods: PubMed and Embase were searched using keywords in September 2022 to identify studies on coffee intake and the risk of hypertension.

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Previous prospective studies have reported inconsistent findings on the association between coffee consumption and the risk of coronary heart disease (CHD). This study aimed to investigate their association using a meta-analysis of prospective studies. We searched PubMed and EMBASE for prospective cohort studies of the association between coffee consumption and the risk of CHD in the general population.

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Background: Although several randomized controlled trials (RCTs) have reported the efficacy of scrambler therapy (ST) for the management of chronic pain, those findings remain inconsistent.

Objectives: This meta-analysis aimed to investigate the efficacy of ST for the management of chronic pain.

Study Design: A meta-analysis of RCTs.

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Background: Recent randomized controlled trials (RCTs) have reported inconsistent findings regarding the efficacy of vitamin D supplementation in the treatment of acute respiratory infections (ARIs). This study aimed to investigate the efficacy of vitamin D supplementation in the treatment of ARIs using a meta-analysis of RCTs.

Methods: PubMed, EMBASE, and the Cochrane Library were searched for relevant articles in June 2021.

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Background: Previous systematic reviews and meta-analyses of randomized controlled trials (RCTs) have reported inconsistent results regarding the efficacy of vitamin D supplements in the prevention of acute respiratory infections (ARIs).

Methods: We investigated these efficacy results by using a meta-analysis of RCTs. We searched PubMed, EMBASE, and the Cochrane Library in June 2021.

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It remains inconclusive whether the use of oral contraceptives (OCs) alters the risks of breast or ovarian cancer in women with a breast cancer susceptibility gene 1 (BRCA1) or breast cancer susceptibility gene 2 (BRCA2) mutation. We investigated the association between OC use and the risks of breast or ovarian cancer in this group by using a meta-analysis. PubMed and EMBASE were searched using keywords until February 2021 to identify relevant studies that evaluated the association between OC ever use and the risks of breast or ovarian cancer in women with a BRCA1 or BRCA2 mutation.

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Previous observational epidemiological studies have reported inconsistently the association between night shift work (NSW) and the risk of breast cancer (BC). This study aimed to investigate those associations by using a meta-analysis of observational epidemiological studies. We searched PubMed and EMBASE using keywords related to this topic from inception till November 2020.

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Background: Concern regarding the reliability and accuracy of the health-related information provided by online newspaper articles has increased. Numerous criteria and items have been proposed and published regarding the quality assessment of online information, but there is no standard quality assessment tool available for online newspapers.

Objective: This study aimed to develop the Health Information Quality Assessment Tool (HIQUAL) for online newspaper articles.

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Mindfulness as a positive mental health intervention approach has been increasingly applied to nurses. This meta-analysis evaluated the psychological effects of mindfulness-based interventions (MBIs) on mental health in nurses. We searched PubMed, EMBASE, Cochrane, and CINAHL up to February 2020.

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Background And Objectives: Previous observational epidemiological studies have reported inconsistent findings on the association between dietary intake of omega-3 fatty acids and endocrine-related gynecological cancer including ovarian cancer and endometrial cancer. This study aimed to investigate this association using a metaanalysis of observational studies.

Methods And Study Design: We searched PubMed, EMBASE, and Cochrane library by using keywords related to the topic in December 2019.

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Objective: The COVID-19 pandemic has dramatically affected healthcare services around Asia. The Asian National Cancer Centres Alliance and the Asia-Pacific Organisation for Cancer Prevention collaborated to assess the mid- and long- term impact of COVID-19 to cancer care in Asia.

Methods: The two entities organised a combined symposium and post-meeting interactions among representatives of major cancer centres from seventeen Asian countries to outlining major challenges and countermeasures.

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