Additional Table.

Descriptive demographics and main clinical variables in adults with gambling disorder (n=436).

Variables	mean (SDa) / median or % (n)
DEMOGRAPHICS
Age	47.3 (±11.3) / 48.0
Gender
Male	44.7 (195)
Female	55.3 (241)
Marital status
With partner	39.2 (171)
Without partner	60.8 (265)
Educational level
High school or less	35.2 (153)
More than high school	64.8 (282)
Ethnicity [Nb=428]
Caucasian	89.3 (382)
Non-Caucasian	10.7 (46)
CLINICAL VARIABLES
Monthly Monetary Losses in Gambling (in American Dollars)c	1,285.6 (±1,817.3) / 666.7
Monthly Income (in American Dollars)	2,399.5 (±2,740.8) / 2083.3
Gambling frequency (times per week) [N=360]	6.7 (±10.3) / 2.5
GSASd total score [N=364]	35.3 (±13.0) / 34.0
PG-YBOCSe total [N=273]	20.8 (±5.1) / 20.0

^aSD = Standard variation.

^bN = Number of valid subjects for the variable. If the N is not displayed, the total sample (n=436) was evaluated for the variable.

^cMonetary losses were assessed in terms of net loss i.e. [money available at the beginning of the session] plus [subsequent withdrawals or borrowing] less [money available and the end of the session].

^dGSAS: The Gambling Symptom Assessment Scale (Kim et al., 2009).

^ePG-YBOCS: The Pathological Gambling Adaptation of the Yale-Brown Obsessive-Compulsive Scale (Pallanti et al., 2005)

% = relative values; n = absolute values.