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. Author manuscript; available in PMC: 2020 Jun 1.
Published in final edited form as: Alcohol Clin Exp Res. 2019 May 9;43(6):1296–1307. doi: 10.1111/acer.14053

Table 1.

Demographic Variables, Treatment Attendance, and Primary/Secondary Outcome Measures by tDCS Groups and for the Total Sample (n=84)

Measure Total Sample Active tDCS
(n=47)
Sham tDCS
(n=37)
Cohen’s
M (SD) M (SD) / N (%) M (SD) / N
(%)
d

Sex N (%) Male 50 (59.5%) 28 (59.6%) 22 (59.5%)
N (%) AUD diagnosis baseline 83 (98.8%) 46 (97.9%) 37 (100%)
N (%) AUD diagnosis 2-months
(%, out of 55 with SCID data)
37 (67.3%) 25 (73.5%) 12 (57.1%)
Age 52.27 (13.00) 51.43 (14.19) 53.35 (11.41) −.15
Number of sessions 4.08 (3.22) 4.32 (3.35) 3.78 (3.06) .17
DDD baseline 6.56 (3.57) 6.32 (3.02) 6.85 (4.19) −.15
DDD post-treatment 5.33 (3.51) 5.12 (3.14) 5.64 (4.06) −.14
DDD 2-months 5.16 (3.62) 4.95 (3.18) 5.48 (4.27) −.14
PHDD baseline 42.4% (33.6%) 41.0% (32.0%) 44.1% (35.9%) −.09
PHDD post-treatment 26.8% (28.9%) 27.4% (30.5%) 25.9% (26.8%) .05
PHDD 2-months 29.2% (31.6%) 29.5% (31.1%) 28.8% (33.2) .02
Craving baseline 2.75 (1.25) 2.82 (1.30) 2.66 (1.19) .13
Craving post-treatment 2.30 (1.28) 2.42 (1.09) 2.33 (1.39) .07
Craving 2-months 2.30 (1.28) 2.24 (1.21) 2.40 (1.42) −.12
Cue reactivity baseline 4.26 (2.10) 4.40 (2.20) 3.99 (1.95) .20
Cue reactivity post-treatment 3.34 (1.73) 3.49 (1.81) 3.06 (1.60) .25
SSRT baseline 291.22 (75.28) 287.54 (75.76) 295.52 (75.58) −.11
SSRT post-treatment 278.0 (82.04) 284.42 (94.85) 266.06 (51.07) .24

Note. Cohen’s d for differences between active – sham; DDD= drinks per drinking day; PHDD = percent heavy drinking days; SSRT = stop signal reaction time.