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Table 2 Subject demographics and baseline characteristics

From: Determination of plasma and leukocyte vitamin C concentrations in a randomized, double-blind, placebo-controlled trial with Ester-C®

Category EC → AA → PL (N = 15) AA → PL → EC (N = 15) P value*
Age (years) 39.87 ± 15.99 43.27 ± 11.92 0.514
Weight (kg) 69.42 ± 11.77 72.76 ± 12.99 0.467
BMI (kg/m2) 24.28 ± 3.09 24.71 ± 2.21 0.662
Gender    
 Female 7/15 (46.67 %) 7/15 (46.67 %) 0.714
 Male 8/15 (53.33 %) 8/15 (53.33 %)  
Baseline vitamin C    
 Plasma vitamin C (μg/mL) 6.97 ± 5.42 4.67 ± 3.99 0.197
 Leukocyte vitamin C (μg/108 cells) 9.28 ± 6.24 8.73 ± 4.13 0.778
  1. Data are mean ± standard deviation, or frequency (%) for categorical variables
  2. EC Ester-C®, AA ascorbic acid, PL placebo
  3. Significant differences are indicated by P values: * means of continuous variables between sequences (compared using an unpaired t test);  categorical variables between sequences (compared using Chi square test)