Τρίτη 28 Ιανουαρίου 2020

Trends in nutritional intake and coronary risk factors

Trends in nutritional intake and coronary risk factors over 60 years among Japanese men in Tanushimaru:

Abstract

We investigated the relationship between time trends in nutrient intake and coronary risk factors/mortality rates in Tanushimaru, a Japanese cohort of the Seven Countries Study. All men between the ages of 40 and 64 were enrolled. Subjects numbered 628 in 1958, 539 in 1977, 602 in 1982, 752 in 1989, 402 in 1999, 329 in 2009, and 160 in 2018. Eating patterns were evaluated by 24-h dietary recall from 1958 through 1989, and by a food frequency questionnaire administered from 1999 through 2018. The total daily energy intake decreased from 2,837 kcal in 1958 to 2,096 kcal in 2018. Carbohydrate intake as a percentage of the total decreased remarkably from 84% (1958) to 53% (2018), whereas there was a large increase in fat intake (from 5 to 24%) during the same period. Age-adjusted mean cholesterol levels rose sharply (from 167.9 to 209.4 mg/dl) and body mass index levels also increased (from 21.7 to 24.4 kg/m2), but smoking rate decreased from 69% (1958) to 30% (2018). The mortality rates from stroke and cancer declined, but mortality from myocardial infarction and sudden death remained stable at low levels. The remarkable changes in dietary patterns over the last 60 years can be related to coronary risk factors, but not currently to the mortality of coronary artery disease; more follow-up is needed.

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