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. 2020 Feb 7;21:26. doi: 10.1186/s12875-020-1096-3

Table 4.

The mean and standard deviation of the dietary antioxidants before and after intervention in type 2 diabetes patients

Vitamin D
(N = 42)
Placebo
(N = 43)
P-value*
Beta-Carotene (micg/day) Baseline 3780.76 3117.63 5440.75 6623.31 0.242
After intervention 4379.33 4073.18 4419.51 4235.22
P-value** 0.362 0.963
Vitamin A (micg/day) Baseline 878.74 663.17 893.10 723.97 0.952
After intervention 757.20 433.10 781.86 489.78
P-value** 0.059 0.947
Vitamin E (mg/day) Baseline 15.79 4.15 15.96 4.63 0.951
After intervention 15.42 4.18 15.67 4.13
P-value** 0.882 0.522
Vitamin C (mg/day) Baseline 122.87 81.12 139.18 108.88 0.596
After intervention 120.19 74.06 123.56 76.57
P-value** 0.101 0.528
Selenium (mg/day) Baseline 238.09 54.43 235.76 88.75 0.386
After intervention 213.06 61.64 230.75 83.54
P-value** 0.696 0.887
Zinc (mg/day) Baseline 20.61 5.82 20.46 5.85 0.306
After intervention 20.96 6.40 19.39 6.05
P-value** 0.003 0.005
Manganese (mg/day) Baseline 12.57 3.61 12.83 5.54 0.381
After intervention 11.48 4.04 12.79 4.62
P-value** 0.240 0.052
Copper (micg/day) Baseline 2.79 0.75 2.67 1.05 0.268
After intervention 2.54 0.75 2.73 0.93
P-value** 0.364 0.988
Magnesium (mg/day) Baseline 717.30 168.48 725.50 247.19 0.461
After intervention 680.08 191.00 732.94 224.49
P-value** 0.695 0.284

*Independent t-test, **Paired t-test