Further details regarding OSDUHS methodology can be accessed at http://www.
Our analyses employed design-based methods to account for the complex survey data of the OSDUHS.
In any case, our use of the 2013 OSDUHS serves as an appropriate baseline for ongoing monitoring of this age group.
body image, weight control, use of diet pills, fruit and vegetable consumption, physical activity and sedentary behaviour) are available in the OSDUHS data.
According to the most recent OSDUHS report, (15 p 49) "experimental work on the OSDUHS showed that the pre-coded format reduced missing value responses versus open-ended formats".
However, the OSDUHS estimates based on grade level do correspond to various stages in the life course and student "career".