Table 3. Adjusted ORs for suicide attempts at wave 2.

	Model 1: PGSI score at wave 1		Model 2: PGSI change score		Model 3: PGSI score at wave 1 and PGSI change score
	Adjusted OR (95% CI)	p value	Adjusted OR (95% CI)	p value	Adjusted OR (95% CI)	p value
PGSI score at wave 1	1·04 (0·98–1·10)	0·23	NA	NA	1·03 (0·95–1·12)	0·42
Change in PGSI score
No change in PGSI score	NA	NA	1 (ref)	0·024	1 (ref)	0·037
PGSI scores increased	NA	¨	2·94 (1·36–6·37)	¨	2·74 (1·20–6·27)	¨
PGSI scores decreased	NA	¨	1·24 (0·59–2·60)	¨	0·98 (0·35–2·77)	¨
Perceived loneliness at wave 1
Not at All, not often, or sometimes	1 (ref)	0·87	1 (ref)	0·86	1 (ref)	0·91
Very much	1·06 (0·51–2·22)	¨	1·07 (0·50–2·28)	¨	1·04 (0·50–2·20)	¨
Impulsivity score at wave 1	1·48 (1·09–1·99)	0·011	1·50 (1·15–1·96)	0·0030	1·45 (1·09–1·94)	0·011
Happiness score at wave 1*	0·85 (0·73–0·98)	0·023	0·85 (0·74–0·98)	0·022	0·84 (0·72–0·97)	0·016
Anxiousness score at wave 1†	1·14 (1·01–1·28)	0·036	1·13 (1·01–1·27)	0·030	1·13 (1·00–1·27)	0·047
Suicide attempts at wave 1
No	1 (ref)	<0·0001	1 (ref)	<0·0001	1 (ref)	<0·0001
Yes	6·27 (2·90–13·53)	¨	6·06 (2·74–13·38)	¨	5·64 (2·57–12·39)	¨

Model fit using Hosmer-Lemeshow goodness of fit test was F-statistic (9, 1932) 0·90 (Prob>F 0·52) for PGSI score at wave 1, 0·4O (Prob>F 0·94) for PGSI change score, and 0·67 (Prob>F 0·74) for PGSI change additionAlly adjusted for PGSI score at wave 1. OR=odds ratio. PGSI=Problem Gambling Severity Index.

^*Higher happiness scores indicate higher happiness.

^†Higher anxiousness scores indicate higher anxiousness.