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. 2019 Sep 27;36(4):1341–1358. doi: 10.1007/s10899-019-09883-8

Table 5.

Descriptive statistics and effect sizes for the outcomes

CO (n = 54)a EC (n = 56)a WL (n = 57)a CO versus EC d [95%-CI]b CO versus WL d [95%-CI]b EC versus WL d [95%-CI]b
Gambling daysc
 Baseline 14.8 (8.5) 13.2 (7.0) 14.9 (9.4)
 3 months 2.1 (4.2) 3.7 (6.1) 8.0 (8.9) 0.42 [− 0.15 to 0.99] 0.64 [0.11 to 1.18] 0.31 [− 0.20 to 0.81]
 6 months 3.9 (7.7) 4.8 (6.4) 0.32 [− 0.24 to 0.87]
 12 months 3.3 (5.3) 2.9 (4.2) 0.16 [− 0.35 to 0.67]
Problem gambling (PGSI)
 Baseline 16.4 (4.5) 16.2 (5.1) 16.2 (4.8)
 3 months 7.1 (6.4) 8.0 (7.0) 11.5 (7.0) 0.23 [− 0.34 to 0.79] 0.95 [0.41 to 1.50] 0.68 [0.17 to 1.19]
 6 months 5.2 (6.9) 8.7 (7.5) 0.76 [0.19 to 1.34]
 12 months 5.1 (6.4) 7.3 (7.0) 0.48 [− 0.04 to 1.00]
Highest stake (Euro)c
 Baseline 583.6 (405.1) 457.6 (432.4) 510.4 (409.9)
 3 months 93.3 (213.6) 126.2 (171.8) 251.0 (271.2) 0.38 [− 0.19 to 0.95] 0.56 [0.03 to 1.09] 0.17 [− 0.33 to 0.67]
 6 months 125.7 (397.6) 131.4 (200.6) 0.31 [− 0.24 to 0.87]
 12 months 95.1 (197.5) 233.4 (452.2) 0.63 [0.10 to 1.15]
Well-being (WHO-5)
 Baseline 7.4 (4.7) 8.5 (4.7) 9.2 (4.6)
 3 months 14.2 (5.2) 14.1 (4.9) 12.6 (5.3) 0.24 [− 0.31 to 0.80] 0.72 [0.20 to 1.24] 0.47 [− 0.03 to 0.98]
 6 months 13.5 (5.3) 14.2 (6.0) 0.07 [− 0.48 to 0.62]
 12 months 15.6 (4.7) 13.4 (5.0) 0.67 [0.15 to 1.20]
Working alliance (WAI-sr)
 3 months 46.4 (9.1) 39.5 (11.1) 0.66 [0.10 to 1.23]
Treatment satis-faction (CSQ-8)
 3 months 25.6 (4.9) 23.3 (5.0) 0.46 [− 0.10 to 1.02]

aMean (SD)

bPositive effect sizes refer to outcomes beneficial to the first-mentioned study group

cDuring the past 30 days