Breast cancer risk: Data about the relation with breast cancer risk was provided by one cohort. No association was found.
Breast cancer mortality: No data was found.
Conclusion: No associations were found. No evidence was found for an association between root vegetables and breast cancer.
| Author | Cohort name | Subjects | Years of follow-up | Cases | End point | Consumption of | Relative Risk (RR) | Adjustments |
| 21) van Gils CH. (2005) | The EPIC Study. | 285 526 women between the ages of 25 and 70 years. (8 European countries. Excluding Greece and Norway) | 5.4 (1992-98 to 2002) | 3,659 | invasive breast cancer risk | Root vegetables (not defined) |
RR = 1.02 (0.89-1.18; P = 0.64) for the highest vs lowest quintile of consumption. Amount specific data (g/d): ≤ 4: RR = 1. > 4-≤ 13: RR = 1.02 (0.89-1.17). > 13-≤ 26: RR = 0.98 (0.86-1.12). > 26-≤ 45: RR = 1.05 (0.92-1.20). > 45: RR = 1.02 (0.89-1.18). | Stratified by center and age. Adjusted for energy intake divided into energy from fat and energy from nonfat sources, alcohol intake, saturated fat intake, height, weight, age at menarche, parity, current oral contraceptive use, current use of hormone therapy, menopausal status, smoking status, physical activity, and education. |
| 21) Olsen A (2003) | The Diet, Cancer and Health Cohort | 23,798 postmenopausal women age 50-64. (Denmark) | 1993-97 to 2000 | 425? | Breast cancer risk | Root vegetables (not defined, but including carrot. Excluding potatoes) | No single subgroup of fruits and/or vegetables was strongly associated with the incidence rate of breast cancer in this study (no data shown). | Age, time under study, parity, previous benign breast tumor surgery, education, use of hormone replacement therapy, duration of HRT use, intake of alcohol and BMI. |