Variable | Treatment duration | Vitamin C group | Placebo group | t | P |
---|---|---|---|---|---|
CDRS | Baseline | 30.1 ±3.56 | 31.3 ±3.89 | 0.77 | 0.45 |
 | 3 months | 14.4 ±2.39 | 24.7 ±2.73 | 9.85 | <0.0001 |
 | 6 months | 9.0 ±1.50 | 17.3 ±2.73 | 11.36 | <0.0001 |
CDI | Baseline | 37.3 ±2.38 | 36.7 ±3.33 | −0.42 | 0.68 |
 | 3 months | 15.8 ±2.75 | 27.0 ±2.30 | 10.77 | <0.0001 |
 | 6 months | 9.0 ±1.12 | 15.5 ±1.45 | 12.27 | <0.0001 |
CGI | Baseline | 54.7 ±7.19 | 56.3 ±7.23 | 0.57 | 0.58 |
 | 3 months | 67.1 ±5.04 | 67.4 ±5.55 | 0.15 | 0.88 |
 | 6 months | 86.5 ±4.91 | 86.7 ±4.41 | 0.13 | 0.90 |