Vitamin D - a systematic literature review for the 5th edition of the Nordic Nutrition Recommendations.

Food Nutr Res · 2013 · PMC3790913 · PMID 24106457

Europe PMC DOI

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a clear trendno p-value reported

However, the individual weighted mean differences demonstrated a clear trend toward a significantly higher absolute change in serum 25(OH)D concentration in the treatment group versus the control.

also in 19,460 other papers

did not reach statistical significanceno p-value reported

The reduction in studies without calcium co-administration did not reach statistical significance.

also in 111,027 other papers

Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.