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Table 4 Mean and standard deviation of serum total oxidative and anti-oxidative capacity in patients participated in two groups taking high and low doses of vitamin Dat the beginning and end of the study

From: The effects of two vitamin D regimens on ulcerative colitis activity index, quality of life and oxidant/anti-oxidant status

Variables Time of the study  
Beginning of study End of study P-valuec aP-value bP-value
Serum TOS (ng/mL)     0.023 0.514
 Low dose group 2.94 ± 1.05 3.03 ± 0.80 0.70   
 High dose group 3.37 ± 0.96 2.99 ± 1.00 0.17   
P-value d 0.15 0.90    
Serum TAC (pg/mL)     0.209 0.599
 Low dose group 0.57 ± 0.11 0.56 ± 0.12 0.47   
 High dose group 0.57 ± 0.13 0.56 ± 0.09 0.30   
P-valued 0.93 0.86    
  1. The values are reported as mean ± standard deviation
  2. aP –value for complementary efficacy (changes comparison) by Student T-test
  3. bP-value for complementary efficacy (changes comparison) after adjustment by ANCOVA test for BMI, and baseline values
  4. cP –value for within group comparison using paired t test
  5. dP –value for between groups comparison using Student T-test