Baseline characteristics of the clinical trial participants
Characteristics
Placebo
Treatment group, vitamin D
P
Demographics (age, years old), mean (SD)
46.3 (9.5)
47.7 (8.0)
0.6
Ethnicity, %
Arab
54
43.5
0.46
Fars
46
56.5
Breast cancer stage, %
I
33
27
0.50
II
42
43
III
25
30
Anthropometric, mean ± SD
BMI
29.2 ± 6.3
30.2 ± 5.4
0.59
Waist circumference
103.5 ± 12.5
109.0 ± 11.2
0.12
Mean dietary intakes, mean ± SD
Total energy intake, kcal/day
1,596 ± 528
1,848 ± 821
0.59
Total fat, g/day
67 ± 32
70 ± 32
0.59
Dietary calcium, mg/day
618 ± 308
843 ± 526
0.41
Dietary fiber, g/day
15 ± 7
18 ± 9
0.97
Dietary carotenoid intake, (μg/day)
4,743.74 ± 4,771.63
4,509.17 ± 3,890.52
0.77
Dietary vitamin C intake, (mg/day)
104.16 ± 79.14
108.80 ± 84.43
0.16
Dietary vitamin E intake, (mg/day)
30.70 ± 18.28
29.80 ± 15.36
0.53
Dietary selenium intake, (μg/day)
48.50 ± 29.77
46.90 ± 27.63
0.68
BMI: body mass index; SD: standard deviation
Declarations
Acknowledgment
We thank the Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Iran, for sample collection.
Author contributions
SAH: Conceptualization. MT: Methodology, Formal analysis, Investigation, Writing—original draft. AJ: Methodology, Formal analysis, Investigation, Writing—review & editing, Supervision. MV: Writing—review & editing. All authors critically revised the manuscript, agreed to be fully accountable for ensuring the integrity and accuracy of the work, and read and approved the final manuscript.
Conflict of interest
The authors declare that they have no conflicts of interest.
Ethical approval
All procedure performed in this study was approved by Ahvaz Jundishapur University of the Medical Sciences Ethics Committee (IR.AJUMS.REC.1398.876), and this study complies with the Declaration of Helsinki.
Consent to participate
Informed consent to participate in the study was obtained from all participants.
Consent to publication
Not applicable.
Availability of data and materials
Not applicable.
Funding
This work was supported and granted by the Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences [NRC-9820], Ahvaz, Iran. The funding provider plays a role in study design, and data collection, apart from these, there is no other contribution.
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