Table 4.
Gambling variables changes at 6 weeks by intervention group (n=1122).
| Gambling variables (last 30 days) | Minimum | Median | Maximum | Mean (SD) or % | P value within group | |
| Deposit in € | ||||||
|
|
Waiting list | -5180.00 | 0.00b | 1970.00 | -9.52 (436.9) | .7 |
|
|
Feedback email | -3206.00 | 0.00 b | 2487.00 | -69.10 (477.4) | .01 |
|
|
Self-help CBT book | -4774.00 | 0.00 b | 9540.00 | 33.03 (903.8) | .6 |
|
|
Weekly emailed CBT | -3645.00 | 0.00 b | 4300.00 | -11.99 (474.4) | .70 |
| Total loss in € a | ||||||
|
|
Waiting list | -5210.95 | 0.48 b | 3348.89 | -18.93 (693.7) | .7 |
|
|
Feedback email | -2377.80 | -0.06 b | 7518.17 | 89.64 (953.1) | .11 |
|
|
Self-help CBT book | -5727.30 | 3.26 b | 13855.52 | 99.27 (1146.0) | .16 |
|
|
Weekly emailed CBT | -2614.05 | 0.00 b | 12285.52 | 93.83 (988.3) | .1 |
| Mean loss per gambling session a | ||||||
|
|
Waiting list | -206.35 | 0.01 b | 91.12 | -1.90 (23.1) | .2 |
|
|
Feedback email | -69.02 | -0.04 b | 174.03 | 1.51 (16.2) | .11 |
|
|
Self-help CBT book | -162.36 | 0.02 b | 127.93 | 1.65 (22.3) | .2 |
|
|
Weekly emailed CBT | -54.54 | 0.00 b | 148.02 | 1.74 (15.8) | .06 |
| Total stake in € | ||||||
|
|
Waiting list | -15027.92 | -10.88 b | 12126.09 | -77.70 (2594.7) | .6 |
|
|
Feedback email | -29009.16 | -4.00 b | 42677.77 | -153.72 (4718.2) | .6 |
|
|
Self-help CBT book | -39197.70 | -30.50 b | 129684.50 | 588.24 (9967.4) | .3 |
|
|
Weekly emailed CBT | -22094.43 | -2.00 b | 55041.05 | 400.32 (4741.9) | .14 |
| Number of gambling sessions | ||||||
|
|
Waiting list | -448.00 | -3.00 b | 277.00 | -5.18 (70.3) | .23 |
|
|
Feedback email | -255.00 | -2.00 | 221.00 | -4.85 (50.9) | .10 |
|
|
Self-help CBT book | -452.00 | -5.50 | 403.00 | -9.25 (70.9) | .04 |
|
|
Weekly emailed CBT | -563.00 | -3.00 | 362.00 | 0.69 (68.3) | .9 |
| Multitabling, yes | ||||||
|
|
Waiting list | - | - | - | -14% | <.001 |
|
|
Feedback email | - | - | - | -6% | .03 |
|
|
Self-help CBT book | - | - | - | -13% | <.001 |
|
|
Weekly emailed CBT | - | - | - | -9% | .001 |
| Compulsivity, yes | ||||||
|
|
Waiting list | - | - | - | -0.4% | .83 |
|
|
Feedback email | - | - | - | -2.4% | .2 |
|
|
Self-help CBT book | - | - | - | -1.2% | .6 |
|
|
Weekly emailed CBT | - | - | - | 2.3% | .09 |
| PGSI | ||||||
|
|
Waiting list (n=65) | -13.00 | -1.00 | 6.00 | -1.32 (3.1) | <.001 |
|
|
Feedback email (n=65) | -17.00 | -1.00 | 8.00 | -1.06 (4.1) | .04 |
|
|
Self-help CBT book (n=44) | -17.00 | -2.00 | 8.00 | -1.73 (4.2) | .004 |
|
|
Weekly emailed CBT (n=14) | -11.00 | -1.00 | 6.00 | -1.64 (3.9) | .11 |
aA negative value is a worsening, and a positive value is an improvement for the participant.
bAs the variance is huge on the monetary variables, median is more meaningful than the mean.