Comparisons of demographic data and severity of symptoms for the Internet Survey, Anxiety Disorders Clinic and National Survey groups.

<p>*Significant difference between IG and ADC groups in follow-up t-tests;</p>†<p>Significant difference between IG and NG groups in follow up independent t-tests;</p>‡<p>Significant difference between ADC and NG groups in follow up independent t-tests.</p>∧<p>Tested at corrected significance level of 0.016.