scholarly journals Fish consumption and CHD mortality: an updated meta-analysis of seventeen cohort studies

2011 ◽  
Vol 15 (4) ◽  
pp. 725-737 ◽  
Author(s):  
Jusheng Zheng ◽  
Tao Huang ◽  
Yinghua Yu ◽  
Xiaojie Hu ◽  
Bin Yang ◽  
...  
Keyword(s):  
Dose Response ◽  
Fish Consumption ◽  
Meta Analysis ◽  
Dietary Assessment ◽  
Generalized Least Squares ◽  
Fish Intake ◽  
Response Analysis ◽  
Least Squares Regression ◽  
Restricted Cubic Splines ◽  
High Fish

AbstractObjectiveResults of studies on fish consumption and CHD mortality are inconsistent. The present updated meta-analysis was conducted to investigate the up-to-date pooling effects.DesignA random-effects model was used to pool the risk estimates. Generalized least-squares regression and restricted cubic splines were used to assess the possible dose–response relationship. Subgroup analyses were conducted to examine the sources of heterogeneity.SettingPubMed and ISI Web of Science databases up to September 2010 were searched and secondary referencing qualified for inclusion in the study.SubjectsSeventeen cohorts with 315 812 participants and average follow-up period of 15·9 years were identified.ResultsCompared with the lowest fish intake (<1 serving/month or 1–3 servings/month), the pooled relative risk (RR) of fish intake on CHD mortality was 0·84 (95 % CI 0·75, 0·95) for low fish intake (1 serving/week), 0·79 (95 % CI 0·67, 0·92) for moderate fish intake (2–4 servings/week) and 0·83 (95 % CI 0·68, 1·01) for high fish intake (>5 servings/week). The dose–response analysis indicated that every 15 g/d increment of fish intake decreased the risk of CHD mortality by 6 % (RR = 0·94; 95 % CI 0·90, 0·98). The method of dietary assessment, gender and energy adjustment affected the results remarkably.ConclusionsOur results indicate that either low (1 serving/week) or moderate fish consumption (2–4 servings/week) has a significantly beneficial effect on the prevention of CHD mortality. High fish consumption (>5 servings/week) possesses only a marginally protective effect on CHD mortality, possibly due to the limited studies included in this group.

scholarly journals Fish Consumption and Coronary Heart Disease: A Meta-Analysis

Nutrients ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2278
Author(s):  
Bo Zhang ◽  
Ke Xiong ◽  
Jing Cai ◽  
Aiguo Ma
Keyword(s):  
Coronary Heart Disease ◽  
Heart Disease ◽  
Dose Response ◽  
Fish Consumption ◽  
Meta Analysis ◽  
Random Effect Model ◽  
Response Analysis ◽  
Summary Estimate ◽  
Incidence And Mortality ◽  
The Impact

Epidemiological studies on the impact of fish consumption on coronary heart disease (CHD) incidence have shown inconsistent results. In addition, in terms of CHD mortality, although previous meta-analyses showed that fish consumption reduces the risk of CHD, six newly incorporated studies show that fish consumption has no impact on CHD. Therefore, the results still need to be verified. The purpose of this study is to quantitatively evaluate the impact of fish consumption on CHD incidence and mortality. Relevant studies were identified from PubMed, Web of Science, and Embase databases up to October 2019. The multivariate-adjusted relative risks (RRs) for the highest versus the lowest fish consumption categories and the 95% confidence intervals were computed with a random-effect model. A restricted cubic spline regression model was used to assess the dose–response relationship between fish consumption and CHD incidence and mortality. Forty prospective cohort studies were incorporated into research. Among them, 22 studies investigated the association between fish consumption and CHD incidence (28,261 cases and 918,783 participants), and the summary estimate showed that higher fish consumption was significantly associated with a lower CHD incidence [RR: 0.91, 95% CI: (0.84, 0.97); I2 = 47.4%]. Twenty-seven studies investigated the association between fish consumption and CHD mortality (10,568 events and 1,139,553 participants), and the summary estimate showed that higher fish intake was significantly associated with a lower CHD mortality [RR: 0.85, 95% CI: (0.77, 0.94); I2 = 51.3%]. The dose–response analysis showed that the CHD incidence and mortality were reduced by 4%, respectively, with a 20 g/day increment in fish consumption. This meta-analysis indicates that fish consumption is associated with a lower CHD incidence and mortality.

scholarly journals High admission blood glucose is an independent risk factor of poor prognosis in COVID-19: A systematic review and dose-response meta-analysis

2020 ◽  
Author(s):  
Gilbert Lazarus ◽  
Jessica Audrey ◽  
Vincent Kharisma Wangsaputra ◽  
Alice Tamara ◽  
Dicky L. Tahapary
Keyword(s):  
Blood Glucose ◽  
Random Effects ◽  
Dose Response ◽  
Poor Prognosis ◽  
Prognostic Value ◽  
Meta Analysis ◽  
Generalized Least Squares ◽  
Response Analysis ◽  
Non Linear ◽  
Quality Evidence

Aims To investigate the prognostic value of admission blood glucose (BG) in predicting COVID-19 outcomes, including poor composite outcomes (mortality/severity), mortality, and severity. Materials and methods Eligible studies evaluating the prognostic value of fasting BG (FBG) and random BG (RBG) levels in predicting COVID-19 outcomes were included and assessed for risk of bias with the Quality in Prognosis Studies tool. Random-effects high-vs-low meta-analysis followed by dose-response analysis using generalized least squares model in a two-stage random-effects meta-analysis were conducted. Potential non-linear association was explored using restricted cubic splines and pooled using restricted maximum likelihood model in a multivariate meta-analysis. Results The search yielded 35 studies involving a total of 14,502 patients. We discovered independent association between admission FBG and poor prognosis in COVID-19 patients. Furthermore, we demonstrated non-linear relationship between admission FBG and severity (Pnon-linearity<0.001), where each 1 mmol/L increase augmented the risk of COVID-19 severity by 33% (risk ratio 1.33 [95% CI: 1.26-1.40]). Albeit exhibiting similar trends, study scarcity limited the strength of evidence on the independent prognostic value of admission RBG. GRADE assessment yielded high-quality evidence for the association between admission FBG and COVID-19 severity, and moderate-quality evidence for its association with mortality and poor outcomes, while the other assessments yielded very low-to-low quality. Conclusion High level of FBG at admission was independently associated with poor prognosis in COVID-19 patients. Further researches to confirm the observed prognostic value of admission RBG and to ascertain the estimated dose-response risk between admission FBG and on COVID-19 severity are required.

scholarly journals Maternal caffeine intake during pregnancy and risk of pregnancy loss: a categorical and dose–response meta-analysis of prospective studies

2015 ◽  
Vol 19 (7) ◽  
pp. 1233-1244 ◽  
Author(s):  
Ling-Wei Chen ◽  
Yi Wu ◽  
Nithya Neelakantan ◽  
Mary Foong-Fong Chong ◽  
An Pan ◽  
...  
Keyword(s):  
Dose Response ◽  
Prospective Studies ◽  
Pregnancy Loss ◽  
Meta Analysis ◽  
Generalized Least Squares ◽  
Caffeine Intake ◽  
Response Analysis ◽  
Caffeine Consumption ◽  
High Intake ◽  
Random Effects Models

AbstractObjectiveTo assess the association between maternal caffeine intake and risk of pregnancy loss using a systematic review and meta-analysis.DesignCategorical and dose–response meta-analysis of prospective studies.SettingRelevant articles were identified by searching MEDLINE and SCOPUS databases through 30 January 2015. Two authors independently extracted information from eligible studies. Random-effects models were used to derive the summary relative risks (RR) and corresponding 95 % CI for specific categories of caffeine consumption and for a continuous association using generalized least-squares trend estimation.SubjectsA total of 130 456 participants and 3429 cases in fourteen included studies.ResultsCompared with the reference category with no or very low caffeine intake, the RR (95 % CI) of pregnancy loss was 1·02 (0·85, 1·24;I2=28·3 %) for low intake (50–149 mg/d), 1·16 (0·94, 1·41;I2=49·6 %) for moderate intake (150–349 mg/d), 1·40 (1·16, 1·68;I2=18·6 %) for high intake (350–699 mg/d) and 1·72 (1·40, 2·13;I2=0·0 %) for very high intake (≥700 mg/d). In the dose–response analysis, each 100 mg/d increment in maternal caffeine intake (~1 cup of coffee) was associated with 7 % (95 % CI 3 %, 12 %) higher risk of pregnancy loss. Our results may have been affected by publication bias, but the association remained significant for the subset of larger studies. Furthermore, adjustment for smoking and pregnancy symptoms may have been incomplete, potentially resulting in residual confounding.ConclusionsAlbeit inconclusive, higher maternal caffeine intake was associated with a higher risk of pregnancy loss and adherence to guidelines to avoid high caffeine intake during pregnancy appears prudent.

A Dose–Response Meta-Analysis Between Maternal Fish Oil Supplement And Risk of Asthma/Wheeze In Offspring

2021 ◽  
Author(s):  
Yin Jia ◽  
Yafang Huang ◽  
Huili Wang ◽  
Haili Jiang
Keyword(s):  
Fish Oil ◽  
Allergic Asthma ◽  
Dose Response ◽  
Childhood Asthma ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Response Analysis ◽  
Omega 3 ◽  
Maternal Supplementation ◽  
The Cochrane Library

Abstract Background: Prenatal exposure to omega-3 polyunsaturated fatty acids (n-3 PUFA) present in oily fish may prevent asthma or wheeze in childhood.Objective: By limiting this systematic review to fish oil intervention that commenced in the gestational period, we aim to find more clear evidences about the relationship between supplement with fish oil during pregnancy and the risk of asthma/wheeze in offspring, and to improve the life satisfaction of children who suffered asthma.Methods: A comprehensive literature search was conducted in the following database: PubMed, Medline, Web of Science, the Cochrane library, and Embase up to February 2021. Two reviewers independently selected studies, extracted data of the characteristics, and assessed risk of bias. Eight randomized controlled trials totaling 3,037 mother-infant pairs were analyzed in the end. “Allergic asthma” and “asthma and/or wheeze” were assessed in our meta-analysis. Subgroup analysis and sensitivity analysis were conducted. Dose–response data was examined using the robust-error meta-regression method.Results: This meta-analysis showed that n-3 PUFA during pregnancy did not significantly reduce the risk of asthma/wheeze (RR 0.93; 95% CI 0.82 to1.04, p=0.21) and allergic asthma (RR 0.66, 95% CI 0.24 to 1.86, p=0.44). Subgroup analyses revealed that the risk of childhood asthma/wheeze was significantly decreased: (1) in Europe (RR 0.69; 95% CI 0.53 to 0.89), (2) when the dose was ≥1200 mg/d (RR 0.69; 95% CI 0.55 to 0.88), (3) when supplementation started after gestational age 22 (RR 0.65; 95%CI 0.50 to 0.85), (4) when supplementation was from pregnancy to lactation (RR 0.69; 95% CI 0.51 to 0.95). Furthermore, the linear dose–response analysis showed that when maternal supplementation of n-3 PUFA increased by 100mg/d, the risk of asthma/wheeze was reduced by 2%.Conclusions: Although perinatal replenishment of n-3 PUFA did not prevent allergic disease in offspring, under some conditions, it could reduce the incidence of asthma/wheeze and allergic asthma in children, and the higher the dose, the better the protective effect it has. Additional research is needed to confirm the hypothesis of a link between n-3 PUFA intake and prevention of childhood asthma/wheeze.

scholarly journals An Evidence Base for School Health Policy during the COVID-19 Pandemic

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Saif Badran ◽  
Omran Musa ◽  
Somaya Al-maadeed ◽  
Egon Toft ◽  
Suhail Doi
Keyword(s):  
Dose Response ◽  
Case Fatality Rate ◽  
School Health ◽  
Meta Analysis ◽  
Case Fatality ◽  
Evidence Base ◽  
Mortality Data ◽  
Response Analysis ◽  
Fatality Rate ◽  
Epidemiological Characteristics

Objective: Children represent a small fraction of confirmed COVID-19 cases, with a low case fatality rate (CFR). In this paper, we lay out an evidence-based policy for reopening schools. Methods: We gathered age-specific COVID-19 case counts and identified mortality data for 14 countries. Dose-response meta-analysis was used to examine the relationship of the incremental case fatality rate (CFR) to age. In addition, an evidence-to-decision framework (EtD) was used to correlate the dose-response data with other epidemiological characteristics of COVID-19 in childhood. Results: In the dose-response analysis, we found that there was an almost negligible fatality below age 18. CFR rose little between ages 5 to 50 years. The confidence intervals were narrow, suggesting relative homogeneity across countries. Further data suggested decreased childhood transmission from respiratory droplets and a low viral load among children. Conclusions: Opening up schools and kindergartens is unlikely to impact COVID-19 case or mortality rates in both the child and adult populations. We outline a robust plan for schools that recommends that general principles not be micromanaged, with authority left to schools and monitored by public health authorities.

scholarly journals Fish consumption and risk of all-cause and cardiovascular mortality: a dose–response meta-analysis of prospective observational studies

2018 ◽  
Vol 21 (7) ◽  
pp. 1297-1306 ◽  
Author(s):  
Ahmad Jayedi ◽  
Sakineh Shab-Bidar ◽  
Saragol Eimeri ◽  
Kurosh Djafarian
Keyword(s):  
Relative Risk ◽  
Dose Response ◽  
Fish Consumption ◽  
Regional Differences ◽  
Observational Studies ◽  
Meta Analysis ◽  
Asian Studies ◽  
Linear Dose ◽  
All Cause Mortality ◽  
Cvd Mortality

AbstractObjectiveThere are some indications of regional differences in the association between fish consumption and clinical outcomes. We aimed to test the linear and potential non-linear dose–response relationships between fish consumption and risk of all-cause and cardiovascular (CVD) mortality, and possible confounding by region.DesignSystematic review and dose–response meta-analysis.SettingSystematic search using PubMed and Scopus, from inception up to September 2016.SubjectsProspective observational studies reporting the estimates of all-cause and CVD mortality in relation to three or more categories of fish intake were included. Random-effects dose–response meta-analysis was conducted.ResultsFourteen prospective cohort studies (ten publications) with 911 348 participants and 75 451 incident deaths were included. A 20 g/d increment in fish consumption was significantly and inversely associated with the risk of CVD mortality (relative risk=0·96; 95 % CI 0·94, 0·98; I2=0 %, n 8) and marginally and inversely associated with the risk of all-cause mortality (relative risk=0·98; 95 % CI 0·97, 1·00; I2=81·9 %, n 14). Subgroup analysis resulted in a significant association only in the subgroup of Asian studies, compared with Western studies, in both analyses. Analysis of Western studies suggested a nearly U-shaped association, with a nadir at fish consumption of ~20 g/d in analysis of both outcomes. Meanwhile, the associations appeared to be linear in Asian studies.ConclusionsThere was potential evidence of regional differences in the association between fish consumption and mortality. It may be helpful to examine the associations by considering types of fish consumed and methods of fish preparation.

scholarly journals Age at Menopause and Risk of Developing Endometrial Cancer: A Meta-Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Yanjun Wu ◽  
Wenjun Sun ◽  
Hui Liu ◽  
Dongfeng Zhang
Keyword(s):  
Endometrial Cancer ◽  
Dose Response ◽  
Meta Analysis ◽  
Positive Association ◽  
Response Analysis ◽  
Age At Menopause ◽  
Relative Risks ◽  
Knowledge Infrastructure ◽  
Study Heterogeneity ◽  
Chinese National Knowledge Infrastructure

Object. The association of age at menopause with endometrial cancer remains controversial. Therefore, we quantitatively summarized the evidence from observational studies with a meta-analysis. Methods. We searched PubMed, Web of Science, Embase, Medline, Chinese National Knowledge Infrastructure (CNKI), and Wan Fang Med online up to March 2019, and all eligible case-control and cohort studies were included in the study. Pooled relative risks (RRs) with 95% confidence intervals (CIs) were calculated using the random-effects model. The dose-response relationship was assessed by restricted cubic spline model. The heterogeneity among studies was evaluated by I2. Metaregression was used to explore the potential sources of between-study heterogeneity. Egger’s test was used to estimate publication bias. Results. Eighteen articles including 957242 subjects with 4781 cases were included in the meta-analysis. The pooled RR (95%CI) of endometrial cancer for the highest versus the lowest age at menopause was 1.89 (95%CI: 1.58-2.26). For dose-response analysis, a nonlinear relationship was found between age at menopause and endometrial cancer, and the positive association became statistically significant when age at menopause was greater than 46.5 years old. Conclusions. This meta-analysis suggested that age at menopause was positively associated with endometrial cancer. For women whose menopausal age over 46.5 years old, the risk of endometrial cancer increased with the age at menopause.

Meat and fish intake and type 2 diabetes: Dose–response meta-analysis of prospective cohort studies

2020 ◽  
Vol 46 (5) ◽  
pp. 345-352 ◽  
Author(s):  
Xiu Yang ◽  
Yuqian Li ◽  
Chongjian Wang ◽  
Zhenxing Mao ◽  
Wen Zhou ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Cohort Studies ◽  
Dose Response ◽  
Prospective Cohort ◽  
Meta Analysis ◽  
Fish Intake ◽  
Prospective Cohort Studies

Alcohol Consumption by Beverage Type and Risk of Breast Cancer: A Dose-Response Meta-Analysis of Prospective Cohort Studies

2020 ◽  
Vol 55 (3) ◽  
pp. 246-253 ◽  
Author(s):  
Qiuyu Sun ◽  
Weihong Xie ◽  
Yanli Wang ◽  
Feifei Chong ◽  
Mengmeng Song ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Breast Cancer Risk ◽  
Cancer Risk ◽  
Cohort Studies ◽  
Postmenopausal Women ◽  
Dose Response ◽  
Alcohol Intake ◽  
Meta Analysis ◽  
Response Analysis ◽  
Total Alcohol

Abstract Aims Alcohol intake has been shown to increase the risk of breast cancer. However, the dose-response analysis of different alcoholic beverages (spirits, wine and beer) is not clear. Our meta-analysis aims to provide a dose-response estimation between different alcohols and breast cancer risk. Methods Search of PubMed and Web of Science and manual searches were conducted up to 1 December 2018, and summary relative risks (RRs) and attributable risk percentage (ARP) for alcohol intake on the development of breast cancer were calculated. Dose-response meta-analysis modeled relationships between drinking type and breast cancer risk. Sources of heterogeneity were explored, and sensitivity analyses were conducted to test the robustness of findings. Results In total, 22 cohort studies and 45,350 breast cancer cases were included. Current drinkers for ER+ had an increased risk compared with never drinkers. In dose-response analysis, there was a statistically significant linear trend with breast cancer risk increasing gradually by total alcohol and wine dose: when adding 10 g per day, the risk increased by 10.5% (RR = 1.10, 95%CI = 1.08–1.13) in total alcohol and 8.9% (RR = 1.08, 95%CI = 1.04–1.14) in wine. For postmenopausal women, the risk increases by 11.1% (RR = 1.11, 95%CI = 1.09–1.13) with every 10 g of total alcohol increase. Furthermore, the breast cancer alcohol-attributed percentage is higher in Europe than in North America and Asia. Conclusions The effect of drinking on the incidence of breast cancer is mainly manifested in ER+ breast cancer. Quantitative analysis showed total drinking had a significant risk for breast cancer, especially for postmenopausal women. However, for different alcohols, just wine intake has the similar results.

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