ORIGINAL ARTICLE |
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Year : 2015 | Volume
: 56
| Issue : 6 | Page : 416-419 |
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Independent and joint effects of serum 25-hydroxivitamin D and calcium on breast cancer ratio in an Iran population: Across-sectional study
Seyed Mostafa Shiryazdi1, Zahra Ghodratipour2, Seyed Ali Shiryazdi3, Sara Yassini3, Mohaddeseh Aboueian-Jahromi1, Hossien Fallahzadeh4, Farimah Shamsi4
1 Department of General Surgery and Environmental Health Engineering, Breast Diseases Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran 2 Department of General Practitioner, International Campus of Shahid Sadoughi University of Medical Sciences, Yazd, Iran 3 Department of General Practitioner, Shahid Sadoughi University of Medical Sciences, Yazd, Iran 4 Department of Biostatics and Epidemiology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Correspondence Address:
Mohaddeseh Aboueian-Jahromi Department of General Surgery and Environmental Health Engineering, Breast Diseases Research Center, Shahid Sadoughi University of Medical Sciences, Yazd Iran
Source of Support: None, Conflict of Interest: None | Check |
DOI: 10.4103/0300-1652.171621
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Background: It has been suggested that Vitamin D and calcium have protective effects against breast cancer. The results about breast cancer and serum Vitamin D and calcium levels are still controversial, indefinite, and insufficient to determine the amount of nutritional needs. Thus, we investigated the association between serum 25-hydroxyvitamin D(25-OH-D) and calcium on the ratio of breast cancer at diagnosis time. Materials and Methods: We carried out a hospital-based cross-sectional study in a population of Iran. It comprised 57 breast cancer cases, who were newly diagnosed, and 85 controls in 2013. The serum 25-OH-D and calcium levels were measured. Results: There was not any significant association between 25-OH-D and breast cancer ratio. Odds ratio (OR) comparing the highest quartile to the lowest quartile was 1.03(95% confidence interval[CI] 0.33–3.22, P-trend 0.95). Having sufficient (>75 nmol/L) serum 25-OH-D levels compared to insufficient serum 25-OH-D levels was not associated with a significantly decreased ratio of breast cancer (OR 0.55, 95% CI 0.23–1.29, P = 0.17). Furthermore, an association between calcium and breast cancer did not get statistical significance (OR 0.51, 95% CI 0.17–1.49, P-trend 0.31). The joint effect was negative interaction. Conclusion: Vitamin D and calcium do not act on decreasing ratio of breast cancer. Decreasing ratio of breast cancer in relation to serum calcium and Vitamin D level at diagnosis time needs more assessments.
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