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Table 1 Schedule of measurements

From: A randomised, controlled trial of a dietary intervention for adults with major depression (the “SMILES” trial): study protocol

Variable Instrument Time point
Self-report   
Diet quality Diet screening tool [18] Screening, 6-months#
Psychiatric conditions SCID-I/NP* Screening
Personality disorders Standardised Assessment of Personality – Abbreviated Scale (SAPAS) [19] Screening
Depression MADRS* [17] Screening, baseline, 3-, 6-months#
Anxiety Hospital anxiety depression scale [26] Baseline, 3-, 6-months
Depression severity Clinical global impressions scale [27] 3-months
Mood Profiles of Moods State (POMS) [28] Baseline, 3-months
Quality of life, utility, wellbeing Assessment of Quality of Life (AQoL-8D) [25]; WHO wellbeing scale [29] Baseline, 3-months
Diet intake Food Frequency Questionnaire (FFQ) [23] Baseline, 3-months
Physical activity International Physical Activity Questionnaire (IPAQ) [24] Baseline, 3-months
Smoking Self-report Baseline, 3-months
Medications Self-report Baseline, 3-months
Medical conditions (including family history) Self-report (Doctor diagnosed) depression, anxiety, myocardial infarction, angina, hypercholesterolemia, high blood pressure, diabetes Baseline, 3-months
Health care resource utilisation Self-reported hospitalisations, attendances at physicians, psychologists, allied health, complementary and alternative medicine providers Baseline, 3-months
Self efficacy General Self Efficacy Scale (GSE) [30] Baseline, 3-months
Participant satisfaction Diet preference score 3-months
Lost productivity Self-reported time lost from paid and unpaid work Baseline, 3 months
Anthropometric & clinical   
Waist, weight, height, blood pressure Height to nearest 0.1 cm. Body weight to nearest 0.1 kg. BMI = weight divided by height squared kg/m2, Digital metre Baseline, 3-months
Biochemical   
Erythrocyte fatty acids and cartenoids Venous blood sample (fasting) Baseline, 3-months
High-density lipoprotein, Lower-density lipoprotein, total cholesterol As above Baseline, 3-months
Triglycerides, blood glucose As above Baseline, 3-months
  1. * clinician administered; #6-month assessment via telephone. Baseline= pre-intervention, 3-months= post-intervention, 6-months= 3-months post-intervention.