Table 2.
Descriptive characteristics of the study population
| Total (%) | Boys (%) | Girls (%) | |
|---|---|---|---|
| 68,898 (100) | 26,941 (39) | 41,957 (61) | |
| Age | |||
| ≤ 16 years | 14,000 (20) | 4912 (18) | 9088 (22) |
| 17 years | 23,039 (33) | 8732 (32) | 14,307 (34) |
| 18 years | 20,791 (30) | 8331 (31) | 12,480 (30) |
| ≥ 19 years | 11,068 (16) | 4986 (19) | 6082 (15) |
| Mean age in years (SD) | 17.9 (1.6) | 18.0 (2.0) | 17.8 (1.3) |
| Perceived ethnicity a, N (%) | |||
| Danish | 61,331 (90) | 23,493 (89) | 37,838 (91) |
| Danish and other | 4666 (6.9) | 1986 (7.5) | 2680 (6.5) |
| Other than Danish | 1937 (2.9) | 943 (3.6) | 994 (2.4) |
| Living situationa, N (%) | |||
| Lives with both parents | 44,270 (64) | 17,672 (66) | 26,598 (64) |
| Lives with one parent | 19,898 (29) | 7458 (28) | 14,440 (30) |
| Lives alone | 4065 (6.0) | 1527 (5.7) | 2538 (6.1) |
aSome columns do not sum to 100% due to missing values