Table 1 |
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|
Summary of pairwise associations between reason for use and type of supplements used (all athletes who use supplements n = 520) |
||||
| Maintain strength |
Enhance endurance |
Able to train longer |
Doctor's advice |
|
|
|
||||
| Creatine |
97.076 (< .001) |
NA |
49.140 (< .001) |
NA |
| Iron |
NA |
0.230 (.632) |
NA |
35.004 (<.001) |
| Ginseng |
NA |
NA |
4.062a (.044) |
NA |
| Whey protein |
97.823 (.001) |
NA |
31.180 (.001) |
NA |
| Caffeine |
NA |
38.761 (.001) |
25.192 (.001) |
NA |
| Vitamin C |
NA |
NA |
1.577 (.209) |
0.005 (.944) |
|
|
||||
|
a expected association from anecdotal effect. Each cell displays the χ2 coefficient and the corresponding p-values in parentheses (NA = no association expected). |
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|
Petróczi et al. Journal of the International Society of Sports Nutrition 2007 4:19 doi:10.1186/1550-2783-4-19 |
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