scholarly journals A comparison of meta-analysis results with and without adjustment for healthy worker effect: cancer mortality among workers in the semiconductor industry

2021 ◽  
pp. e2021057
Author(s):  
Sung-Ho Hwang ◽  
Moon-Young Park ◽  
Won Jin Lee ◽  
Inho Park ◽  
Kimyong Hong ◽  
...  
Keyword(s):  
Cancer Mortality ◽  
Semiconductor Industry ◽  
Meta Analysis ◽  
Healthy Worker Effect

scholarly journals Health Consequences of an Elite Sporting Career: Long-Term Detriment or Long-Term Gain? A Meta-Analysis of 165,000 Former Athletes

2020 ◽  
Author(s):  
Adam Runacres ◽  
Kelly A. Mackintosh ◽  
Melitta A. McNarry
Keyword(s):  
General Population ◽  
Cancer Mortality ◽  
English Language ◽  
Meta Analysis ◽  
Premature Mortality ◽  
Epidemiological Studies ◽  
Registration Number ◽  
Mortality Ratio ◽  
Former Elite Athletes

Abstract Introduction Exercise is widely accepted to improve health, reducing the risk of premature mortality, cardiovascular disease (CVD) and cancer. However, several epidemiological studies suggest that the exercise-longevity relationship may be ‘J’ shaped; with elite athlete’s likely training above these intensity and volume thresholds. Therefore, the aim of this meta-analysis was to examine this relationship in former elite athletes. Methods 38,047 English language articles were retrieved from Web of Science, PubMed and SportDiscus databases published after 1970, of which 44 and 24 were included in the systematic review and meta-analysis, respectively. Athletes were split into three groups depending on primary sport: Endurance (END), Mixed/Team, or power (POW). Standard mortality ratio’s (SMR) and standard proportionate mortality ratio (SPMR) were obtained, or calculated, and combined for the meta-analysis. Results Athletes lived significantly longer than the general population (male SMR 0.69 [95% CI 0.61–0.78]; female SMR 0.51 [95% CI 0.40–0.65]; both p < 0.01). There was no survival benefit for male POW athletes compared to the general population (SMR 1.04 [95% CI 0.91–1.12]). Although male athlete’s CVD (SMR 0.73 [95% CI 0.62–0.85]) and cancer mortality (SMR 0.75 [95% CI 0.63–0.89]), were significantly reduced compared to the general population, there was no risk-reduction for POW athletes CVD mortality (SMR 1.10 [0.86–1.40]) or END athletes cancer mortality (SMR 0.73 [0.50–1.07]). There was insufficient data to calculate female sport-specific SMR’s. Discussion Overall, athletes live longer and have a reduced incidence of both CVD and cancer mortality compared to the general population, refuting the ‘J’ shape hypothesis. However, different health risks may be apparent according to sports classification, and between sexes, warranting further investigation. Trial registration PROSPERO (registration number: CRD42019130688).

scholarly journals Resting Heart Rate as a Predictor of Cancer Mortality: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 10 (7) ◽  
pp. 1354
Author(s):  
Diana P. Pozuelo-Carrascosa ◽  
Iván Cavero-Redondo ◽  
I.M. Lee ◽  
Celia Álvarez-Bueno ◽  
Sara Reina-Gutierrez ◽  
...  
Keyword(s):  
Heart Rate ◽  
Cancer Mortality ◽  
Meta Analysis ◽  
Positive Association ◽  
Cochrane Library ◽  
Resting Heart Rate ◽  
Potential Marker ◽  
Meta Analyses ◽  
Risk Of Cancer ◽  
The Relationship

This work was aimed to synthetize the evidence available about the relationship between resting heart rate (RHR) and the risk of cancer mortality. A computerized search in the Medline, EMBASE, Web of Science, and Cochrane Library databases from their inception to 24 September 2020 was performed. We performed three meta-analyses: (1) cancer mortality comparing the “less than 60 bpm” and “more than 60 bpm” categories; (2) cancer mortality comparing “less than 60 bpm”, “60 to 80 bpm”, and “more than 80 bpm” categories; and (3) analysis for 10–12 and 20 bpm increase in RHR and risk of cancer mortality. Twenty-two studies were included in the qualitative review, and twelve of them met the inclusion criteria for the meta-analysis. Our results showed a positive association between RHR and the risk of cancer mortality. This association was shown in a meta-analysis comparing studies reporting mean RHR values below and above 60 bpm, when comparing three RHR categories using less than 60 bpm as the reference category and, finally, in dose response analyses estimating the effect of an increase of 10–12 bpm in RHR, both in men and in women. In conclusion, a low RHR is a potential marker of low risk of cancer mortality.

Abstract 20: The Effect of Resistance Training on Survival and Cardiovascular Outcomes: A Systematic Review and Meta-Analysis

2018 ◽  
Vol 11 (suppl_1) ◽  
Author(s):  
Farzane Saeidifard ◽  
Jose R Medina Inojosa ◽  
Colin P West ◽  
Thomas P Olson ◽  
Virend K Somers ◽  
...  
Keyword(s):  
Systematic Review ◽  
Heart Disease ◽  
Resistance Training ◽  
Subgroup Analysis ◽  
Cancer Mortality ◽  
Meta Analysis ◽  
Cardiovascular Outcomes ◽  
Risk Of Bias ◽  
Cochrane Central Register ◽  
All Cause Mortality

Background: This is the first systematic review and meta-analysis to investigate the effect of resistance training (RT) on survival and other cardiovascular outcomes including ischemic heart disease events and stroke. Methods: An experienced librarian searched databases up to September 25 th , 2017, for randomized trials and cohort studies that evaluated the effect of RT on survival and cardiovascular events in the general population. The databases included Ovid MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, and Scopus. Two investigators conducted the screening process independently and in duplicate. Cochrane tools were used to assess the risk of bias in clinical trials and observational studies. We calculated hazard ratios and 95% confidence intervals using RevMan and fixed and random effect models and had a subgroup analysis based on doses of RT and for the combination of RT and aerobic exercise (AE) vs no exercise. Results: The search identified 1429 studies from which 10 (one randomized trial) met the inclusion criteria, including 338,254 participants with a mean follow up of 8.14 years. The meta-analysis showed that RT, in comparison with no exercises, is associated with 24% lower all-cause mortality and 48% lower mortality when combined with AE. Based on subgroup analysis, performing 1-2 sessions of RT/week is associated with lower all-cause mortality by 28% (HR 0.72, 95% CI 0.66-0.78) whereas > 5 sessions of RT/week has no association with all-cause mortality (HR 0.99, 95% CI 0.76-1.31). Further, RT alone or combined with AE is associated with lower CV mortality compared to no exercise (Figures). Finally, RT alone also showed a borderline association with lower all-cancer mortality. Heterogeneity was present for several comparisons, and subsequent analysis will explore sources of this variability. Using study design-specific Cochrane risk of bias tools, no major sources of bias were identified in the included studies. One cohort study looked at the effect of RT on coronary heart disease events and found 23% risk reduction in men, while no study specifically assessed the effect of RT on cerebrovascular outcomes. Conclusion: RT is associated with lower all-cause, CV and all-cancer mortality. RT appears to have an additive effect when combined with AE.

Hormone therapy and lung cancer mortality in women: Systematic review and meta-analysis

Steroids ◽  
2017 ◽  
Vol 118 ◽  
pp. 47-54 ◽  
Author(s):  
Wentao Li ◽  
Xiaona Lin ◽  
Rui Wang ◽  
Feng Wang ◽  
Shaohua Xie ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Systematic Review ◽  
Hormone Therapy ◽  
Cancer Mortality ◽  
Meta Analysis ◽  
Lung Cancer Mortality

P5495Sex differences in marital status and risk of cardiovascular disease, cancer, and all-cause mortality: a systematic review and meta-analysis of 7,881,040 individuals

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
J Nie ◽  
Y Wang
Keyword(s):  
Cardiovascular Disease ◽  
Sex Differences ◽  
Marital Status ◽  
Cancer Mortality ◽  
Meta Analysis ◽  
Excess Risk ◽  
Stroke Mortality ◽  
Never Married ◽  
All Cause Mortality ◽  
Cvd Mortality

Abstract Background Marital status has been identified as an important social factor associated with mortality. In current epidemiologic research, being unmarried was observed to be a suboptimal health status in the global population. The growing number of unmarried people has health implications, in light of evidence suggesting that it is associated with an increase in the incidence of various diseases and high mortality. Few attempts have been made to produce an overall estimate and sufficiently clarified of the sex difference between unmarried status and mortality risks, this is still a matter of debate. Purpose To ascertain whether sex differences exist in the relationship between marital status and cardiovascular disease (CVD), cancer, all-cause mortality in the general population and to explore the potential effect of age, location, the duration of follow-up and publication years on these outcomes. Methods A systematic search was performed in PubMed and EMBASE from inception through to April 2018 and review of references. We used the sex-specific RRs (relative risk) to derive the women-to-men ratio of RRs (RRR) and 95% CIs from each study. Subsequently, the RRR for each outcome was pooled with random effects meta-analysis weighted by the inverse of the variances of the log RRRs. Results Twenty-one studies with 7,881,040 individuals were included for meta-analysis. Compared with married individuals, being unmarried was significantly associated with all-cause mortality, cancer mortality, CVD mortality and coronary heart disease (CHD) mortality, especially for singles, for both sexes (Figure 1). However, the association with death from all-cause and CVD was significantly stronger in men. Compared with women who were divorced/separated, divorced/separated men had significantly higher risk of all-cause mortality, cancer mortality and CVD mortality. Moreover, never married men had 31% and 9% higher excess risk of stroke mortality and all-cause mortality, respectively, compared with never married women. No sex differences were observed concerning the impact of any unmarried status on CHD mortality. Conclusions Being unmarried (widowed, divorced/separated or never married) conferred higher excess risk of stroke mortality and all-cause mortality for men than women. Moreover, divorced/separated men had significantly higher risk of cancer mortality and CVD mortality. Further studies are warranted to clarify the biological, behavioral, and/or social mechanisms involved in sex differences driving these associations.

scholarly journals Association of Total Nut, Tree Nut, Peanut, and Peanut Butter Consumption with Cancer Incidence and Mortality: A Comprehensive Systematic Review and Dose-Response Meta-Analysis of Observational Studies

2020 ◽  
Author(s):  
Sina Naghshi ◽  
Mehdi Sadeghian ◽  
Morteza Nasiri ◽  
Sara Mobarak ◽  
Masoomeh Asadi ◽  
...  
Keyword(s):  
Dose Response ◽  
Cancer Mortality ◽  
Meta Analysis ◽  
Peanut Butter ◽  
Inverse Association ◽  
Tree Nuts ◽  
Tree Nut ◽  
Meta Analyses ◽  
Risk Of Cancer ◽  
Nut Intake

ABSTRACT Data on the association of nut intake with risk of cancer and its mortality are conflicting. Although previous meta-analyses summarized available findings in this regard, some limitations may distort their findings. Moreover, none of these meta-analyses examined the dose-response associations of total nut intake with the risk of specific cancers as well as associations between specific types of nuts and cancer mortality. Therefore, this study aimed to summarize available findings on the associations of total nut (tree nuts and peanuts), tree nut (walnuts, pistachios, macadamia nuts, pecans, cashews, almonds, hazelnuts, and Brazil nuts), peanut (whole peanuts without considering peanut butter), and peanut butter consumption with risk of cancer and its mortality by considering the above-mentioned points. We searched the online databases until March 2020 to identify eligible articles. In total, 43 articles on cancer risk and 9 articles on cancer mortality were included in the current systematic review and meta-analysis. The summary effect size (ES) for risk of cancer, comparing the highest with lowest intakes of total nuts, was 0.86 (95% CI: 0.81, 0.92, P &lt; 0.001, I2 = 58.1%; P &lt; 0.01), indicating a significant inverse association. Such a significant inverse association was also seen for tree nut intake (pooled ES: 0.87, 95% CI: 0.78–0.96, P &lt; 0.01, I2 = 15.8%; P = 0.28). Based on the dose-response analysis, a 5-g/d increase in total nut intake was associated with 3%, 6%, and 25% lower risks of overall, pancreatic, and colon cancers, respectively. In terms of cancer mortality, we found 13%, 18%, and 8% risk reductions with higher intakes of total nuts, tree nuts, and peanuts, respectively. In addition, a 5-g/d increase in total nut intake was associated with a 4% lower risk of cancer mortality. In conclusion, our findings support the protective association between total nut and tree nut intake and the risk of cancer and its mortality.

A Review and Meta-Analysis of Occupational Titanium Dioxide Exposure and Lung Cancer Mortality

2018 ◽  
Vol 60 (7) ◽  
pp. e356-e367 ◽  
Author(s):  
Hien Q. Le ◽  
John A. Tomenson ◽  
David B. Warheit ◽  
Jon P. Fryzek ◽  
Ashley P. Golden ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Titanium Dioxide ◽  
Cancer Mortality ◽  
Meta Analysis ◽  
Lung Cancer Mortality
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