Table 1.
Demographic characteristics of participants vs the source and sample populations
| Source population | Sample population | Participants | Participants willing to take part in subsequent surveys | |
| N=14 350 | N=9990 | N=902 | N=665 | |
| n (%) | n (%) | n (%) | n (%) | |
| Gender | ||||
| Female | 5117 (35.7) | 3552 (35.5) | 320 (35.5) | 236 (35.5) |
| Male | 9233 (64.3) | 6446 (64.5) | 582 (64.5) | 429 (64.5) |
| Age* | ||||
| 18–29 | 6135 (42.8) | 4265 (42.7) | 197 (21.8) | 148 (22.2) |
| 30–39 | 4769 (33.2) | 3315 (33.1) | 310 (34.4) | 218 (32.8) |
| 40–49 | 2263 (15.8) | 1604 (16.0) | 230 (25.5) | 173 (26.0) |
| 50–64 | 1034 (7.2) | 721 (7.2) | 145 (16.1) | 112 (16.9) |
| >64 | 149 (1.0) | 95 (1.0) | 20 (2.2) | 14 (2.1) |
| Civil status* | ||||
| Unmarried | 5879 (41.0) | 4047 (40.5) | 236 (26.1) | 176 (26.5) |
| Married | 7873 (54.8) | 5545 (55.5) | 595 (66.0) | 433 (65.1) |
| Other† | 598 (4.2) | 398 (4.0) | 71 (7.9) | 56 (8.4) |
| Year granted residency in Norway | ||||
| 2015 | 2993 (20.8) | 2081 (20.8) | N/A‡ | N/A‡ |
| 2016 | 7513 (52.4) | 5267 (52.7) | ||
*Age and civil status for the two participating groups was based on participants’ answers in the questionnaire.
†Includes widow(er), separated, divorced.
‡Individual-level data on the year residency was granted was not provided by the Norwegian National Registry.