| 29) Koushik A. (2007) | Pooled Analysis of 7 Cohort Studies. | 404,751 subjects. | 7-20 years | 3,244 | Colon cancer risk | Yams, sweet potatoes |
INCLUSION CRITERIA:
- Publication of a diet and cancer association.
- Diagnosis of at least 50 incident colorectal cancer cases.
- Assessment of usual diet.
- Conduct of a validation study of the dietary assessment method or a closely related instrument.
INCLUDED STUDIES (Follow-up years/No. of colon cancer cases).
In the analysis, an extended follow-up period for most of the studies was included:
- The Cancer Prevention Study II Nutrition Cohort. (1992-1999/467 men, 349 women)
McCullough ML, Robertson AS, Chao A, Jacobs EJ, Stampfer MJ, Jacobs DR. A prospective study of whole grains, fruits, vegetables, and colon cancer risk. Cancer Causes Control. 2003 Dec;14(10):959-70. Abstract
- The Health Professionals Follow-up Study. (1986-2000/456 men)
Michels KB, Edward Giovannucci, Joshipura KJ, Rosner BA, Stampfer MJ, Fuchs CS. Prospective study of fruit and vegetable consumption and incidence of colon and rectal cancers. J Natl Cancer Inst. 2000 Nov 1;92(21):1740-52. Full text
- The Breast Cancer Detection Demonstration Project Follow-up Study. (1987-1999/349 women)
Flood A, Velie EM, Chaterjee N, Subar AF, Thompson FE, Lacey JV Jr. Fruit and vegetable intakes and the risk of colorectal cancer in the Breast Cancer Detection Demonstration Project follow-up cohort. Am J Clin Nutr. 2002 May;75(5):936-43. Full text
- The Iowa Women's Health Study. (1986-2001/799 women)
Steinmetz KA, Kushi LH, Bostick RM, Folsom AR, Potter JD. Vegetables, and fruit colon cancer in the Iowa Women's Health Study. Am J Epidemiol. 1994 Jan 1;139(1):1-15. Abstract
- The New York University Women's Health Study. (1985-1998/96 women)
Kato I, Akhmedkhanov A, Koenig K, Toniolo PG, Shore RE, Riboli E. Prospective study of diet and female colorectal cancer: the New York University Women's Health Study. Nutr Cancer. 1997;28(3):276-81. Abstract
- The Nurses' Health Study A + B. (A = 1980-1986/162 women. B = 1986-2000/429 women)
Michels KB, Edward Giovannucci, Joshipura KJ, Rosner BA, Stampfer MJ, Fuchs CS. Prospective study of fruit and vegetable consumption and incidence of colon and rectal cancers. J Natl Cancer Inst. 2000 Nov 1;92(21):1740-52. Full text
- The Women's Health Study. (1993-2003/163 women)
Lin J, Zhang SM, Cook NR, Rexrode KM, Liu S, Manson JE. Dietary intakes of fruit, vegetables, and fiber, and risk of colorectal cancer in a prospective cohort of women (United States). Cancer Causes Control. 2005 Apr;16(3):225-33. Abstract
RELATIVE RISK:
RR = 0.83 (0.65-1.07; P = 0.32) for the highest vs lowest tertile of consumption.
Amount specific data (servings):
0: RR = 1.
> 0 to < 1/wk: RR = 0.92 (0.81-1.04).
≥ 1/wk: RR = 0.83 (0.65-1.07).
One serving = 1/2 cup. | BMI; height; education; physical activity; family history of colorectal cancer; postmenopausal hormone use; oral contraceptive use; use of nonsteroidal anti-inflammatory drugs; multivitamin use; smoking habits (never/past/current + amount); red meat; total milk; alcohol; and total energy. Age in years and year of questionnaire return were included as stratification variables. |
| 23) Lin J. (2005) | The Women's Health Study. | 36,976 women aged > or = 45 years.
(USA) | 10 | 223? | Colorectal cancer risk | Yams/sweet potatoes | Intakes of individual vegetable items were found not appreciably to be associated with colorectal cancer risk (data not shown). | age, randomized treatment assignment, BMI, family history of colorectal cancer, history of colon polyps, physical activity, smoking status, baseline aspirin use, red meat intake, alcohol consumption, total energy intake, menopausal status, baseline post-menopausal HT use, folate intake and multivitamin use. Glycemic load in the multivariate model did not change the overall results. |