American Journal of Clinical Nutrition, Vol 65, 732-736, Copyright © 1997 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

The association of dietary fat and fiber with coagulation factor VII in the elderly: the Rotterdam Study

LI Mennen, JC Witteman, JH den Breeijen, EG Schouten, PT de Jong, A Hofman and DE Grobbee
Department of Epidemiology and Biostatistics, Erasmus University Rotterdam, Netherlands. louise.mennen@medew.hegl.wau.nl

Considerable evidence suggests that a high concentration of coagulation factor VII is a risk factor for ischemic heart disease. Factor VII is known to be influenced by dietary fat and probably by dietary fiber in young and middle-aged people. There are no data available in elderly people and the effects of different types of fat are unclear. This study examines the relation of factor VII activity (factor VIIc) with dietary fat and fiber in The Rotterdam Study. The Rotterdam Study is a population-based study among 7983 men and women aged > or = 55 y. Factor VIIc was measured in 3007 subjects (1730 women and 1277 men aged 67.3 +/- 7.8 and 66.3 +/- 7.0 y, respectively). Measurements included cardiovascular risk factors and habitual diet was assessed by a semiquantitative food-frequency questionnaire. Associations that were significant or nearly significant differed for some nutrients between men and women. Total fat intake showed a direct association with factor VIIc only in women (beta = 0.1%/g; 95% CI: 0.01, 0.20). Saturated fat intake was associated with factor VIIc in women (beta = 0.18%/g; 95% CI: 0.001, 0.36) and in men (beta = 0.11%/g; 95% CI: -0.06, 0.27). Monounsaturated fat was positively related to factor VIIc in women (beta = 0.17%/g; 95% CI: -0.05, 0.39) and polyunsaturated fat was inversely associated with factor VIIc in men (beta = -0.15%/g; 95% CI: - 0.33, 0.03). Fiber intake was inversely associated with factor VIIc in both men (beta = -0.31%/g; 95% CI: -0.57, -0.06) and women (beta = - 0.36%/g; 95% CI: -0.63, -0.09). No associations were found for energy intake. In elderly persons, factor VIIc is associated with fat and fiber intake. This suggests that factor VIIc is influenced by nutritional factors, even in old age.

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