Table 2.

Characteristics of escitalopram-treated and placebo participants at baseline.

Characteristic	Escitalopram (n=85)	Placebo (n=92)	p-value
Age, mean (SD)	71.1 (7.4)	72.2 (8.2)	.56
White, No. %	68 (80.0)	78 (84.8)	.49
Men, No. %	24 (28.3)	34 (37.0)	.22
Education, mean (SD)	14.0 (2.5)	13.8 (3.3)	.47
Hamilton Anxiety Rating Scale, Mean (SD)	22.9 (4.3)	23.1 (4.9)	.92
Hamilton Depression Rating Scale, Mean (SD)	11.8 (3.4)	12.3 (4.3)	.98
Age of onset GAD, Mean (SD)	43.3 (25.9)	37.8 (27.8)	.18

For continuous variables, such as age, a two sample t test was used, degrees of freedom=175.

For dichotomous variables, such as gender, a chi square test was used, degrees of freedom=1