Log Statistics Regarding Website Use and Traffic
Between September 1, 2002 and February 1, 2004, there were 484695 visits and 1148097 page views from 99695 unique visitors to the Panic Center. The average length of a visit was 13 minutes and 11 seconds (SD [standard deviation] 4 minutes, 21 seconds). There were 28123 unique visitors to the Panic Program, WB-DAT, and Panic Diary and 356134 page views of those features.
Use of the Screening Test, Panic Symptom Diary, and Support Group
Between September 1, 2002 and February 1, 2004, 15269 users completed the WB-DAT. describes the number of tests completed (male/female), as well as the number of users who met screening criteria for 0-8 disorders. describes the number of users who met screening criteria for each of the DSM-IV disorders screened for by the WB-DAT.
Number of screening diagnoses criteria met by users of the WB-DAT
Number of users meeting screening criteria on the WB-DAT
Out of 15229 users, 6687 (43.79%) responded to the survey. Of these 1388 (20.76%) reported that they intended to share the results with their doctor; 2517 (37.64%) reported that they were going to think about sharing the results with their doctor; 777 (11.62%) reported that they were not going to share the results with their doctor; 229 (3.42%) reported that they were health care professionals reviewing the test; and 1776 (26.56%) had “no comment.” Of the total number of users who completed the screening test, 4003 (26.21%) printed their results (Final Report), 1676 (10.97%) emailed their results to themselves, and 198 (1.29%) emailed their results to a health care professional.
Between September 1, 2002 and February 1, 2004, 493 (357 [72.41%] female and 136 [27.59%] male) users registered to use the panic symptom diary (Panic Diary) without also registering for the CBT program. During the same time period, 1451 users registered for the online support group and there were a total of 6664 posts and 75622 visitors. On average, each post was viewed by 8.81 (SD 2.34) visitors.
Use and Longitudinal Survey of Effectiveness of the CBT Program
Between September 1, 2002 and February 1, 2004, 856 (73.90%) females and 305 (26.1%) males registered for the Panic Program. Out of 1161, 126 (11%) reported that they were using the program “with a health care professional” and 1065 (92%) reported that they were using it “on their own.” In addition, 190 users reported that they were “a health care professional reviewing the program.” Their data were excluded from further analyses. The Panic Program in booklet form was downloaded by 1059 users. presents the number of users who completed each session of the 12-session CBT Program, showing a substantial degree of attrition from session to session, with only 12 out of 1161 original users remaining at the end of the program.
Number of users who completed each session of the 12-session CBT program
The primary outcome measure for the effectiveness of the Panic Program was user's self-report of panic attack frequency and severity at the beginning of each session (sessions 2-12). At the beginning of each session users were asked to report the number of panic attacks they had experienced per day for the previous week and the average intensity of those panic attacks on a scale from 0 to 10 with 0 being “no panic” and 10 being as intense as the “worst attack ever” . Results of paired-sample t tests for these variables are presented in Tables 4 and 5. There were statistically significant reductions in panic attack frequency and severity across treatment, including significant reductions between sessions 2 and 3 (P<.001).
Average number of panic attacks per day in the past week
Average intensity of panic attacks in the past week
Only 12 users completed all outcome measures, including the WB-DAT. At session 1, those 12 individuals met criteria for an average of 1.42 (SD 0.90) DSM-IV Axis 1 Disorders according to the screener. At session 12, they met criteria for an average of 0.42 (SD 0.79) disorders (t[1.11] = 3.633, P=.004). At session 1, 8 out of these 12 users met screening criteria for panic disorder with agoraphobia; at session 12, only 2 continued to meet screening criteria for the disorder. In addition, 3 out of these 12 users met screening criteria for social anxiety at session 1, whereas only one met screening criteria at session 12.
At registration and at the end of session 12, users were asked a number of questions, including a question about the degree to which their panic attacks interfered with their normal daily lives on a 0 to 4 scale with 0 being none/no interference and 4 being extreme/severe interference. At registration, the average interference rating was 2.58 (SD 1.08), as compared to 0.42 (SD 0.77) at the end of treatment (df=1,11, t = 5.348, P<.001). At the end of session 12 users were also asked to rate the degree to which their fear/and or avoidance interfered with their normal daily life, with 0 being none/no interference and 4 meaning extreme/severe interference. On average, the 12 users who completed the survey rated this question as 0.42 (SD = 0.90).
In response to the survey at the end of session 12, 12 out of 12 (100.00%) users reported that since challenging the Panic Program they were challenging their anxious thoughts, 11 out of 12 (91.67%) reported that they were getting better at setting goals and designing exposure plans, 12 out of 12 (100.00%) reported that since starting the Panic Program they had gained confidence in their ability to challenge their fears and win, and 12 out of 12 (100.00%) reported that they believed that their hard work was paying off. Out of 12 users, 10 (83.33%) reported that they used the Support Group and 10 out of 10 (100%) rated the Support Group as “extremely helpful.”