Body mass index and coronary heart disease risk score: the Tromsø study, 1979 to 2001

Tom Wilsgaard1, Egil Arnesen

  • 1Institute of Community Medicine, University of Tromsø, N-9037 Tromsø, Norway. tom.wilsgaard@ism.uit.no

Annals of Epidemiology
|August 3, 2006
PubMed

Insights

Weight gain increases coronary heart disease (CHD) risk. Longitudinal studies show rising body mass index (BMI) is linked to higher CHD risk scores in adults, particularly in older women.

Area of Science:

  • Cardiology
  • Public Health
  • Epidemiology

Background:

  • Rising obesity rates present a significant public health challenge.
  • Understanding the long-term impact of weight changes on cardiovascular health is crucial.

Purpose of the Study:

  • To investigate the relationship between changes in body mass index (BMI) over time and alterations in coronary heart disease (CHD) risk.
  • To utilize the Framingham risk score equation to quantify CHD risk.

Main Methods:

  • Longitudinal study involving 10,214 adults in Tromsø, Norway, with data collected over four examination periods (1979-2001).
  • Participants aged 20-61 years at baseline attended at least three examinations.
  • Fixed-effects regression models were employed to analyze longitudinal data.

Main Results:

  • A significant association was found between BMI change and CHD risk score change across all baseline age groups.
  • This association was more pronounced with increasing age in women compared to men.
  • A 3 kg/m² increase in BMI correlated with a 0.45-point increase in CHD risk score for men and 0.66 points for women aged 40-49.

Conclusions:

  • Increased body weight over time is demonstrably linked to adverse coronary heart disease risk in both genders.
  • The findings underscore the importance of weight management for cardiovascular disease prevention.
Abstract

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