2.2. Measures
At baseline, all participants underwent assessment of psycho- logical, physical, and cognitive measures by trained research assistants. Medical history and medication use, including antide- pressant medication use, and current smoking status was recorded during a face-to-face interview. Number of years of education was also ascertained. Medical examination including blood pressure and blood analysis for cholesterol levels was undertaken as part of the MAS study (Sachdev et al., 2010).