Descriptive characteristics of sample stratified by classes of family income during childhood (n=9154)
| Never poor | Moving into poverty | Moving out of poverty | Chronically poor | p Value | |
| N | 8337 | 210 | 321 | 286 | |
| Age, median (year) | 17.34 | 17.14 | 17.18 | 17.33 | 0.057 |
| Man % (n) | 47.1 (3924) | 47.6 (100) | 49.5 (159) | 45.1 (129) | 0.742 |
| Foreign % (n) | 3.7 (303) | 13.5 (27) | 15.2 (47) | 42.6 (118) | <0.001 |
| Single parent % (n) | 15.3 (1135) | 32.8 (59) | 28.6 (78) | 29.6 (69) | <0.001 |
| Perceived economic well-being % (n) | <0.001 | ||||
| Poorer than others | 5.9 (480) | 18.4 (38) | 14.0 (43) | 26.4 (72) | |
| Equal to others | 67.8 (5501) | 60.2 (124) | 68.7 (211) | 56.8 (155) | |
| Better than others | 26.3 (2138) | 21.4 (44) | 17.3 (53) | 16.8 (46) | |
| Highest education in family % (n) | <0.001 | ||||
| Elementary | 3.7 (304) | 6.4 (13) | 8.3 (26) | 10.9 (30) | |
| Intermediate | 30.7 (2532) | 35.6 (72) | 35.4 (111) | 31.2 (86) | |
| Higher | 46.9 (3859) | 34.7 (70) | 31.5 (99) | 31.5 (87) | |
| Unknown | 18.7 (1541) | 23.3 (47) | 24.8 (78) | 26.4 (73) | |
| Maternal work affiliation % (n) | <0.001 | ||||
| Work | 93.4 (7331) | 77.3 (143) | 81.8 (239) | 66.1 (160) | |
| Benefits | 3.8 (300) | 15.1 (28) | 11.6 (34) | 20.2 (49) | |
| Other | 2.8 (216) | 7.6 (14) | 6.5 (19) | 13.6 (33) | |
| Paternal work affiliation % (n) | <0.001 | ||||
| Work | 95.8 (7257) | 88.3 (159) | 88.5 (238) | 76.8 (179) | |
| Benefits | 2.8 (212) | 8.3 (15) | 7.4 (20) | 14.6 (34) | |
| Other | 1.4 (107) | 3.3 (6) | 4.1 (11) | 8.6 (20) |