Key result
In Australian women, smoking had the highest population attributable risk for heart disease up to age 30, while physical inactivity had the highest attributable risk from age 31 to 90.
Why the study?
What is the population attributable risk of heart disease for high BMI, smoking, high blood pressure, and physical inactivity across the adult lifespan in Australian women?
Observational
Yes
What is the population attributable risk of heart disease for high BMI, smoking, high blood pressure, and physical inactivity across the adult lifespan in Australian women?
Answers are grounded in this paper and cite their sources.
Physical inactivity is the leading population attributable risk factor for heart disease in women over age 30, highlighting the need for targeted physical activity promotion.
BACKGROUND: Recent estimates suggest that high body mass index (BMI), smoking, high blood pressure (BP) and physical inactivity are leading risk factors for the overall burden of disease in Australia. The aim was to examine the population attributable risk (PAR) of heart disease for each of these risk factors, across the adult lifespan in Australian women. METHODS: PARs were estimated using relative risks (RRs) for each of the four risk factors, as used in the Global Burden of Disease Study, and prevalence estimates from the Australian Longitudinal Study on Women's Health, in 15 age groups from 22-27 (N=9608) to 85-90 (N=3901). RESULTS: RRs and prevalence estimates varied across the lifespan. RRs ranged from 6.15 for smoking in the younger women to 1.20 for high BMI and high BP in the older women. Prevalence of risk exposure ranged from 2% for high BP in the younger women to 79% for high BMI in mid-age women. In young adult women up to age 30, the highest population risk was attributed to smoking. From age 31 to 90, PARs were highest for physical inactivity. CONCLUSIONS: From about age 30, the population risk of heart disease attributable to inactivity outweighs that of other risk factors, including high BMI. Programmes for the promotion and maintenance of physical activity deserve to be a much higher public health priority for women than they are now, across the adult lifespan.
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Brown et al. (2014) conducted an observational in Heart disease. Risk factors (high BMI, smoking, high blood pressure, physical inactivity) was evaluated on Population attributable risk (PAR) of heart disease. In Australian women, smoking had the highest population attributable risk for heart disease up to age 30, while physical inactivity had the highest attributable risk from age 31 to 90.
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