Table A4.

Zero-inflated negative binomial regression models for gambling and gaming problems. Need frustration on the upper (count) section, need satisfaction on the lower (inflate) section.

	Gambling problems				Gaming problems
	IRR	Robust SE	95% CI		IRR	Robust SE	95% CI
Need frustration	1.22*	0.10	1.03	1.43	1.34***	0.07	1.21	1.49
Mental health issues	1.25	0.21	0.89	1.75	1.12	0.08	0.96	1.29
Male gender	1.31	0.31	0.82	2.10	1.47***	0.16	1.19	1.82
Age	0.99	0.01	0.98	1.00	0.99*	0.00	0.99	1.00
Inflated zeroes	OR	Robust SE	95% CI		OR	Robust SE	95% CI
Need satisfaction	1.06	0.21	0.72	1.56	0.97	0.10	0.79	1.20
Mental health issues	0.58	0.53	0.10	3.45	0.65**	0.10	0.48	0.87
Male gender	0.47**	0.12	0.28	0.78	0.61**	0.12	0.42	0.89
Age	1.02*	0.01	1.00	1.05	1.05***	0.01	1.04	1.07
Wald χ2: (4)	34.20				123.59
Max. likelihood R2	0.09				0.23
Cragg & Uhler’s R2	0.10				0.24
McFadden’s Adj. R2	0.03				0.08

*p < 0.05; ** p < 0.01; *** p < 0.001