Table 3.
Descriptive Characteristics of Meat-related Mutagens for Cases and Controls in the Kentucky Colon Cancer Study
| Variable | Cases (n=1062) Mean(SD) |
Controls (n=1645) Mean(SD) |
P-value1 |
|---|---|---|---|
| MeIQx | |||
| Total (ng/day) | 75.4 (163.3) | 53.5 (101.3) | 0.0001 |
| Red Meat (ng/day) | 72.2 (162.3) | 50.5 (96.7) | 0.0001 |
| White Meat (ng/day) | 3.9 (7.0) | 4.0 (8.4) | 0.76 |
| PhIP | |||
| Total (ng/day) | 187.3 (318.7) | 169.8 (412.5) | 0.22 |
| Red Meat (ng/day) | 93.3 (192.5) | 71.3 (205.3) | 0.006 |
| White Meat (ng/day) | 96.5 (184.3) | 101.7 (243.6) | 0.54 |
| DiMeIQx | |||
| Total (ng/day) | 4.1 (7.8) | 3.1 (6.3) | 0.0003 |
| Red Meat (ng/day) | 4.0 (7.6) | 2.9 (5.9) | 0.0004 |
| White Meat (ng/day) | 0.2 (0.7) | 0.2 (0.6) | 0.3 |
| BaP | |||
| Total (ng/day) | 39.6 (69.1) | 40.7 (84.3) | 0.71 |
| Red Meat (ng/day) | 25.4 (50.4) | 22.2 (50.3) | 0.12 |
| White Meat (ng/day) | 14.7 (44.7) | 19.3 (49.5) | 0.02 |
| Meat-derived Mutagenic Activity | |||
| Total (units/day) | 9873.5 (19523.5) | 7260.1 (12960.8) | 0.0002 |
| Red Meat (units/day) | 9074.0 (19146.9) | 6437.7 (12007.4) | 0.0001 |
| White Meat (units/day) | 895.8 (1327.0) | 960.7 (1650.9) | 0.27 |
1
t-test P-value for continuous variables.