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. 2023 Mar 16;25:e44965. doi: 10.2196/44965

Table 2.

Sample characteristics (N=560).

Characteristics Participants, n (%)
Sex (N=557)a

Male 237 (42.5)

Female 320 (57.5)
Age (years)

18-29 83 (14.8)

30-39 228 (40.7)

40-49 249 (44.5)
Income (JPY/US $)b

<6 million (<44,551.20) 350 (62.5)

≥6 million (≥44,551.20) 210 (37.5)
Employment (N=547)c

Part-time/temporary worker or unemployed 174 (31.8)

Permanent employee 294 (53.8)

Not in the labor force 79 (14.4)
Depressive symptoms

No 384 (68.6)

Yes (PHQ-9d>=10) 176 (31.4)
Suicidal ideatione

No 391 (69.8)

Yes 169 (30.2)
Loneliness

Not lonely (3-item loneliness<6) 284 (50.7)

Lonely (3-item loneliness≥6) 276 (49.3)

aExcluded 3 participants.

bJPY 1=US $ 0.0074.

cExcluded 13 participants.

dPHQ-9: 9-item Patient Health Questionnaire.

eParticipants were categorized as “Yes” for the suicidal ideation question if they answered that they were bothered by thoughts that they would be better off dead or of hurting themselves in some way several days or more during the past 2 weeks in item 9 of the PHQ-9.