Table 2.
The rate of adverse effects by group
| Adverse effect | Vitamin C group n (%) | Placebo group n (%) | |
|---|---|---|---|
| Nausea | 12 (57.1) | 11 (52.4) | X2 = 0.09, df = 1, P = .7 |
| Fatigue | 9 (42.8) | 8 (38.1) | X2 = 0.09, df = 1, P = .5 |
| Dry mouth | 7 (33.3) | 9 (42.9) | X2 = 0.4, df = 1, P = .5 |
| Pain | 6 (28.6) | 8 (38.1) | X2 = 0.4, df = 1, P = .5 |
| Sweating | 0 | 4 | - |
| Decreased appetite | 4 (19) | 6 (28.6) | - |
| Abdominal pain | 3 (14.3) | 3 (14.3) | - |
| Increased appetite | 3 (14.3) | 0 (0.0) | - |
| Restlessness | 3 (14.3) | 2 (9.5) | - |
| Insomnia | 3 (14.3) | 1 (4.8) | - |
| Blurred vision | 0 | 3 (14.3) | - |
| Itch | 0 | 2 (9.5) | - |
| Tremor | 0 | 2 (9.5) | - |
| Dizziness | 1 (4.8) | 2 (9.5) | - |
| Daytime drowsiness | 2 (9.5) | 0 | - |
| Drooling | 1 (4.8) | 0 (0.0) | - |
| Nervousness | 1 (4.8) | 1 (4.8) | - |
| Constipation | 0 | 1 (4.8) | - |
| Lethargy | 0 | 1 (4.8) | - |
| Tachycardia | 0 | 1 (4.8) | - |
| Dystonia | 0 | 0 | - |
| Diarrhea | 0 | 1 (4.8) | - |