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. 2015 Apr 8;8:13–35. doi: 10.2147/IBPC.S49958

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© 2015 Ke et al. This work is published by Dove Medical Press Limited, and licensed under Creative Commons Attribution – Non Commercial (unported, v3.0) License

The full terms of the License are available at http://creativecommons.org/licenses/by-nc/3.0/. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.

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Cross-sectional studies.

Notes: (A) Cross-sectional studies of vitamin D and hypertension risk: the effect of higher vitamin D (measured as quartiles of 25OHD) on hypertension risk expressed as odds ratio (OR) for individual studies (blue) and the calculated overall OR (red). (B) Funnel plot showing standard error by log OR for the cross-sectional studies. (C) Cross-sectional studies of vitamin D and hypertension risk sub-groups: the effect of higher vitamin D (measured as quartiles of 25OHD) on hypertension risk stratified by quality score expressed as OR for individual studies (blue), sub-group total(white) and the calculated overall OR (red). (D) Cross-sectional studies of vitamin D and hypertension risk sub-groups: the effect of higher vitamin D (measured as quartiles of 25OHD) on hypertension risk stratified by age and gender expressed as OR for individual studies (blue), sub-groups total (white) and the calculated overall OR (red). *Studies published in one paper.

Abbreviation: CI, confidence Interval.

Cross-sectional studies.

Notes: (A) Cross-sectional studies of vitamin D and hypertension risk: the effect of higher vitamin D (measured as quartiles of 25OHD) on hypertension risk expressed as odds ratio (OR) for individual studies (blue) and the calculated overall OR (red). (B) Funnel plot showing standard error by log OR for the cross-sectional studies. (C) Cross-sectional studies of vitamin D and hypertension risk sub-groups: the effect of higher vitamin D (measured as quartiles of 25OHD) on hypertension risk stratified by quality score expressed as OR for individual studies (blue), sub-group total(white) and the calculated overall OR (red). (D) Cross-sectional studies of vitamin D and hypertension risk sub-groups: the effect of higher vitamin D (measured as quartiles of 25OHD) on hypertension risk stratified by age and gender expressed as OR for individual studies (blue), sub-groups total (white) and the calculated overall OR (red). *Studies published in one paper.

Abbreviation: CI, confidence Interval.