The interview components of the NNPAS were conducted under the Census and Statistics Act (CSA) 1905.
A total sample of 12,153 persons (aged 2 years and over) from 9519 private dwellings across Australia was included.
The aim of this study is to determine the association between demographic, lifestyle and weight status with overall diet quality in Australian adults.
Such dietary patterns have been proven to reduce the risk of non-communicable diseases such as Type 2 Diabetes, cardiovascular disease (CVD), some cancers, osteoporosis, and dental disease, and also help to maintain a healthy body weight [2,3].
Understanding the dietary patterns of the population can provide insight into how diet may be contributing to these diseases and identify sub-populations requiring tailored interventions.
A high quality or healthy diet is increasingly understood to be due to the synergistic interaction between nutrients and other food components rather than the action of individual foods or nutrients [9,10].
The HEIFA-2013 is a gender-specific measure of diet quality assessing adherence to the national Dietary Guidelines .
It includes compliance with recommended serves of core food groups and avoidance of deleterious nutrients and discretionary foods at harmful levels.