Table 4

Adverse events after intervention.

Characteristics

Vitamin C Group

(n = 70)

Placebo

Group (n = 71)


Withdrawal from trial for adverse events, n (%)

0 (0)

0 (0)


Patients with ≥ 1 adverse events 2 hours after trial, n (%)

16 (22.9)

11 (15.4)


Patients with ≥ 1 adverse events 1 day after trial, n (%)

4 (5.7)

4 (5.6)


Total adverse events, n

24

17


Patients who experienced specific adverse events 2 hours after intervention, n (%)

itching sense/pain at injection site

9 (12.9)

8 (11.3)

dry mouth

7 (10)

2 (2.8)

others*

4 (5.7)

3 (4.2)


Patients who experienced specific adverse events 1 day after intervention, n (%)

itching sense/pain at injection site

1 (1.4)

3 (4.2)

dry mouth

1 (1.4)

0 (0)

diarrhea

1 (1.4)

0 (0)

common cold symptoms

1 (1.4)

1 (1.4)


*Other adverse events included chest discomfort, palpitations, sweating, and abdominal discomfort in the vitamin C group and dizziness, fatigue, and myalgias in the placebo group. These adverse events occurred in one case each.

Suh et al. Nutrition Journal 2012 11:7   doi:10.1186/1475-2891-11-7

Open Data