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Ovarian Cancer is somewhat associated with a reduction in 20 ng of vitamin D – Feb 2011

Meta-analysis: Circulating vitamin D and ovarian cancer risk.

Gynecol Oncol. 2011 Feb 14
Yin L, Grandi N, Raum E, Haug U, Arndt V, Brenner H.

OBJECTIVE: To review and summarize evidence from longitudinal studies on the association between circulating 25 hydroxyvitamin D (25(OH)D) and the risk of ovarian cancer (OC).

METHODS: Relevant prospective cohort studies and nested case-control studies were identified by systematically searching Ovid Medline, EMBASE, and ISI Web of Knowledge databases and by cross-referencing. The following data were extracted in a standardized manner from eligible studies: first author, publication year, country, study design, characteristics of the study population, duration of follow-up, OC incidence according to circulating vitamin D status and the respective relative risks, and covariates adjusted for in the analysis. Due to the heterogeneity of studies in categorizing circulating vitamin D levels, all results were recalculated for an increase of circulating 25(OH)D by 20ng/ml. Summary relative risks (RRs) were calculated using meta-analysis methods.

RESULTS: Overall, ten individual-level studies were included that reported on the association between circulating vitamin D levels and OC incidence. Meta-analysis of studies on OC incidence resulted in a summary RR (95% confidence interval, CI) of 0.83 (0.63-1.08) for an increase of 25(OH)D by 20ng/ml (P=0.160). No indication for heterogeneity and publication bias was found.

CONCLUSIONS: A tentative inverse association of circulating 25(OH)D with OC incidence was found, which did not reach statistical significance but which requires clarification by additional studies due to potentially high clinical and public health impact.
Copyright © 2011 Elsevier Inc. All rights reserved. PMID: 21324518
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Does not specify the level of vitamin D

Suspect that every few patients had high levels of vitamin D

See also Vitamin D Life

Ovarian Cancer 5.8 X more likely if both low vitamin D and Fok1 gene change – May 2013
Google Search Vitamin D Life for "Ovarian Cancer" 252 hits as of July 2013
Ovarian cancer: more likely to survive if more vitamin D – Aug 2012 with the following graphic
Survival rates for > or < 15 ng of vitamin D

Ovarian Cancer is somewhat associated with a reduction in 20 ng of vitamin D – Feb 2011

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