Demographics for the eligible participants (total sample) consisting of those who participated and the non-participants
| Total n=1523 n (%) | Participants n=300 n (%) | Non-participants n=1223 n (%) | |
| Relationship status | |||
| Married/cohabit | 1291 (95.1) | 286 (21.1) | 1005 (74.1) |
| Single/other | 66 (4.9) | 8 (0.6) | 58 (4.3) |
| Education | |||
| Elementary school | 72 (5.4) | 1 (0.1) | 71 (5.3) |
| High school | 489 (36.6) | 82 (6.1) | 407 (30.5) |
| University | 775 (58.0) | 209 (54.2) | 566 (42.4) |
| Country of birth | |||
| Sweden | 953 (76.7) | 261 (21) | 692 (55.7) |
| Foreign born | 289 (23.3) | 25 (2) | 264 (21.3) |
Note: missing data; n=166 for relationship status, n=187 for education, and n=281 for country of birth.