Table 2.
Comparison of the type, duration, and weekly frequency of protein supplement consumption between cases and controls.
| Variable | Cases N = 59 | Controls N = 43 | p value | ||
|---|---|---|---|---|---|
| n | (n/N)% | n | (n/N)% | ||
| Whey supplement | 47 | (79.6) | 28 | (65.1) | 0.004 |
| Casein and whey supplements | 8 | (13.5) | 9 | (20.9) | 0.982 |
| Creatine supplement | 4 | (6.7) | 6 | (13.9) | 0.301 |
| Duration of protein supplements (weeks) | 0.099 | ||||
| 1–4 | 14 | (23.7) | 16 | (37.3) | |
| 5–8 | 11 | (18.6) | 2 | (4.6) | |
| 9–12 | 9 | (15.3) | 4 | (9.3) | |
| >12 | 25 | (42.4) | 21 | (48.8) | |
| Frequency of supplement intake (days/week) | 0.284 | ||||
| 3 | 2 | (3.4) | 2 | (4.7) | |
| 4 | 7 | (11.9) | 2 | (4.7) | |
| 5 | 12 | (20.3) | 14 | (32.5) | |
| 6 | 10 | (16.9) | 5 | (11.6) | |
| 7 | 28 | (47.5) | 20 | (46.5) | |