| 1992-1993 | 1994-1995 | 2000-2001 | 2003-2004 | ||||
---|---|---|---|---|---|---|---|---|
 | Wave 1 | N = 32 | Wave 3 | N = 47 | Wave 6 | N = 8 | Wave 7 | N = 23 |
Reasons of use of Vitamin C | N | % | N | % | N | % | N | % |
Cold prevention and immune stimulation | 13 | 43.3 | 14 | 30.4 | 0 | 0.0 | 8 | 34.8 |
General health | 7 | 23.3 | 18 | 39.1 | 8 | 100 | 8 | 34.8 |
Supplement | 6 | 20.0 | 7 | 15.2 | 0 | 0.0 | 3 | 13.0 |
Other1 | 4 | 13.3 | 7 | 15.2 | 0 | 0.0 | 4 | 17.4 |
Missing | 2 | Â | 1 | Â | 0 | Â | 0 | Â |