RT Journal Article
SR Electronic
T1 Association of carbohydrate and saturated fat intake with cardiovascular disease and mortality in Australian women
JF Heart
JO Heart
FD BMJ Publishing Group Ltd and British Cardiovascular Society
SP heartjnl-2021-319654
DO 10.1136/heartjnl-2021-319654
A1 Sarah Gribbin
A1 Joanne Enticott
A1 Allison M Hodge
A1 Lisa Moran
A1 Eleanor Thong
A1 Anju Joham
A1 Sarah Zaman
YR 2021
UL http://heart.bmj.com/content/early/2021/09/11/heartjnl-2021-319654.abstract
AB Background Conflicting evidence surrounds the effect of dietary macronutrient intake (fat, carbohydrate and protein) on cardiovascular disease (CVD), particularly in women.Methods Women (aged 50–55 years) were recruited into the Australian Longitudinal Study on Women’s Health. Women were divided into quintiles according to their carbohydrate and saturated fat intake as a percentage of total energy intake (TEI). The primary endpoint was new-onset CVD (heart disease/stroke). Secondary endpoints included all-cause mortality, incident hypertension, obesity and/or diabetes mellitus. Multivariate logistic regression models assessed for associations with the primary and secondary endpoints, with adjustment for confounders.Results A total of 9899 women (mean age 52.5±1.5 years) were followed for 15 years, with 1199 incident CVD and 470 deaths. On multivariable analysis, higher carbohydrate intake was associated with lower CVD risk (ptrend<0.01), with the lowest CVD risk for quintile 3 (41.0%–44.3% energy as carbohydrate) versus quintile 1 (<37.1% energy as carbohydrate) (OR 0.56, 95% CI 0.35 to 0.91, p=0.02). There was no significant association between carbohydrate intake and mortality (ptrend=0.69) or between saturated fat intake and CVD (ptrend=0.29) or mortality (ptrend=0.25). Both increasing saturated fat and carbohydrate intake were significantly inversely associated with hypertension, diabetes mellitus and obesity (ptrend<0.01 for all).Conclusions In middle-aged Australian women, moderate carbohydrate intake (41.0%–44.3% of TEI) was associated with the lowest risk of CVD, without an effect on total mortality. Increasing saturated fat intake was not associated with CVD or mortality and instead correlated with lower rates of diabetes, hypertension and obesity.Data may be obtained from a third party and are not publicly available.