Higher Caffeinated Coffee Intake Is Associated with Reduced Malignant Melanoma Risk: A Meta-Analysis Study.

Higher Caffeinated Coffee Intake Is Associated with Reduced Malignant Melanoma Risk: A Meta-Analysis Study.

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BACKGROUND:Several epidemiological studies have determined the associations between coffee intake level and skin cancer risk; however, the results were not yet conclusive.Herein, we conducted a systematic review and meta-analysis of the cohort and case-control studies for the association between coffee intake level and malignant melanoma (MM) risk.METHODS:Studies were identified Semi-Analytical Option Pricing Under Double Heston Jump-Diffusion Hybrid Model through searching the PubMed and MEDLINE databases (to November, 2015).

Study-specific risk estimates were pooled under the random-effects model.RESULTS:Two case-control studies (846 MM patients and 843 controls) and five cohort studies (including 844,246 participants and 5,737 MM cases) were identified.For caffeinated coffee, the pooled relative risk (RR) of MM was 0.

81 [95% confidential interval (95% CI) = 0.68-0.97; P-value for Q-test = 0.

003; I2 = 63.5%] for those with highest versus lowest quantity of intake.In the dose-response analysis, the A Non–Enzymatic Electrochemical Sensor of Cu@Co–MOF Composite for Glucose Detection with High Sensitivity and Selectivity RR of MM was 0.

955 (95% CI = 0.912-0.999) for per 1 cup/day increment of caffeinated coffee consumption and linearity dose-response association was found (P-value for nonlinearity = 0.

326).Strikingly, no significant association was found between the decaffeinated coffee intake level and MM risk (pooled RR = 0.92, 95% CI = 0.

81-1.05; P-value for Q-test = 0.967; I2 = 0%; highest versus lowest quantity of intake).

CONCLUSIONS:This meta-analysis suggested that caffeinated coffee might have chemo-preventive effects against MM but not decaffeinated coffee.However, larger prospective studies and the intervention studies are warranted to confirm these findings.