Research Article

On the Differential Diagnosis of Anxious from Nonanxious Major Depression by means of the Hamilton Scales

Table 2

Medium and large effect size differences between A-MDD and NA-MDD groups on the 17-item HAM-D.

A-MDDNA-MDDEffect size
MeanSDMeanSDCohen’s

Middle insomnia1.30.90.80.80.59
Delayed insomnia1.30.90.70.90.67
Agitation0.90.50.40.51.00
Anxiety: somatic2.60.81.80.90.94
Somatic symptoms: gastrointestinal1.60.51.20.70.66
Somatic symptoms: general2.00.01.80.40.71
Hypochondriasis1.00.90.40.70.74

A-MDD: anxious major depressive disorder; NA-MDD: nonanxious major depressive disorder; HAM-D: Hamilton Rating Scale for Depression.