Investigators: Guy Marks (CI), Helen Reddel, Leanne Poulos, Neil Hime, Maria Ampon, Arianne Schlumpp The aims of the Respiratory Outcomes Linkage Study – data linkage using the 45 and Up Study (ROLS-45) are to ascertain the impacts that comorbid obstructive airways disease and cardiovascular disease have on health outcomes in 45 and Up Study participants, and the impact that the use of specific respiratory medications has on health outcomes in participants with obstructive airways disease.