Both specific ( Beck Depression Inventory [ BDI ] , Hamilton Depression Rating Scale [ HDRS ] , Symptom Check List Anxiety Scale [ SCL-90-Anx ] , Hamilton Anxiety Rating Scale [ HARS ] ) and global ( Symptom Check List Global Severity Index [ SCL-90-GSI ] , Global Assessment of Functioning Scale [ GAF ] ) psychiatric symptoms were measured at baseline and 3-7 times during a 3-year follow-up .