This is why mental health experts use tools like the Hamilton Anxiety Scale (HAM-A) to better assess those conditions. The Hamilton Anxiety Scale was developed in 1959 by Dr. Max Hamilton. The scale ...

Male or female outpatients aged 18 to 65 years with a DSM-IV diagnosis of GAD, with a global score ≥21 in the Hamilton Anxiety Rating Scale (HAM-A) and a score <3 points on the 'depressive mood ...