Table 1

Summary of demographic characteristics

Population subset Placebo Venlafaxine ER
37.5 mg 75 mg 150 mg
Note: all P values were not significant. The P value for gender was based on Fisher's exact test; the P values for age, duration of current illness and baseline HRSA were based on ANOVA.
HRSA, Hamilton Rating Scale for Anxiety.
Intent-to-treat (n=529) 130 138 130 131
Safety (n=541) 130 140 134 137
Female n (%) 76 (58) 80 (57) 83 (62) 89 (65)
Male n (%) 54 (42) 60 (43) 51 (38) 48 (35)
Mean age (years) 46.1 45.4 44.1 45
Range 18-86 19-79 18-75 20-82
Mean duration of current illness (weeks) 491.6 567 470.9 429.9
Mean baseline HRSA 26.7 26.6 26.3 26.3
Range 20-52 20-44 20-43 17-38