Comparison of the symptom severity scores of the Internet Clinic (IC), Anxiety Disorders Clinic (ADC), and the National Survey (NS) samples.

<p>*Significant difference between IC and ADC samples in follow-up t-tests;</p>†<p>Significant difference between IC and National Survey samples in follow-up t-tests;</p>‡<p>Significant difference between ADC and NS samples in follow-up t-tests.