Table 2.

Results of multiple logistic regression analysis using presence/absence of gaming disorder serving as a dependent variable^a)

Item No.	IDb)	Question items	Yes by person without disorder	No by person without disorder	Yes by person with disorder	No by person with disorder	Adjusted odds ratio	95% confidence interval
1	4-A	Have you often been unable to stop gaming when you should have?	69	205	42	9	28.2	(0.75–1,063.9)
2	5-A	Have you often played games for longer than intended before you started gaming?	155	119	46	5	0.02	(0.00–0.95)
3	7-B	Have you noticed that you have significantly lost interest in important activities, such as sports, hobbies, or meetings with friends or relatives because of gaming?	9	265	36	15	17.0	(1.00–287.4)
4	9-B	Is gaming the most important part of your daily life?	3	271	26	25	667.2	(7.71–57,767)
5	16-C	Reduction in school or job performance	37	237	36	15	47.3	(1.46–1,533)
6	21-C	Day/night reversal or a tendency towards day/night reversal (30 days or more during past 12 months)	11	263	37	14	111.0	(2.28–5,402)
7	24-D	Have you continued gaming although you endangered your education or risked or lost your job because of gaming?	8	266	42	9	45.5	(1.17–1771)
8	26-D	Have you continued gaming despite experiencing mental health problems caused by gaming, e.g. becoming depressed or anxious, or experiencing problems with sleeping?	19	255	37	14	49.4	(1.51–1,621)

a) Adjusted for gender, age and presence/absence of job.

b) ID is the combination of the original number and the diagnostic category in Table 1.