Table 3.
Participant Characteristics by Smoking Trajectory Group
| Smoking Trajectory Group | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| Statistic | None n=6109 |
Moderate quit early n=871 |
High quit later n=264 |
Low continuous n=1105 |
Moderate continuous n=2135 |
High continuous n=991 |
Very high- continuous n=217 |
Overall n=11692 |
|
|
| |||||||||
| Maternal age (years) | n | 6109 | 871 | 264 | 1105 | 2135 | 991 | 217 | 11692 |
| mean (S.D.) | 26.4 (5.7) | 23.7 (5.3) | 24.5 (5.4) | 23.3 (5.3) | 24.6 (5.7) | 26.5 (5.9) | 28.5 (6.2) | 25.6 (5.8) | |
| median | 26.0 | 23.0 | 24.0 | 22.0 | 24.0 | 26.0 | 28.0 | 25.0 | |
| min : max | 16.0 : 44.0 | 15.0 : 44.0 | 16.0 : 42.0 | 16.0 : 43.0 | 15.0 : 43.0 | 16.0 : 45.0 | 16.0 : 42.0 | 15.0 : 45.0 | |
| Maternal race | |||||||||
| American Indian or Alaska Native | n (%) | 1198 (19.6%) | 344 (39.5%) | 76 (28.8%) | 185 (16.7%) | 140 (6.6%) | 68 (6.9%) | 10 (4.6%) | 2021 (17.3%) |
| Mixed Ancestry | n (%) | 2546 (41.7%) | 372 (42.7%) | 131 (49.6%) | 882 (79.8%) | 1941 (90.9%) | 840 (84.8%) | 176 (81.1%) | 6888 (58.9%) |
| White | n (%) | 2278 (37.3%) | 150 (17.2%) | 51 (19.3%) | 33 (3.0%) | 51 (2.4%) | 78 (7.9%) | 31 (14.3%) | 2672 (22.9%) |
| Other/Unknown | n (%) | 87 (1.4%) | 5 (0.6%) | 6 (2.3%) | 5 (0.5%) | 3 (0.1%) | 5 (0.5%) | 0 (0.0%) | 111 (0.9%) |
| Trimester participant was recruited | |||||||||
| First trimester | n (%) | 1567 (25.7%) | 294 (33.8%) | 72 (27.3%) | 274 (24.8%) | 476 (22.3%) | 216 (21.8%) | 40 (18.4%) | 2939 (25.1%) |
| Second trimester | n (%) | 4119 (67.4%) | 523 (60.0%) | 170 (64.4%) | 673 (60.9%) | 1324 (62.0%) | 643 (64.9%) | 134 (61.8%) | 7586 (64.9%) |
| Third trimester | n (%) | 423 (6.9%) | 54 (6.2%) | 22 (8.3%) | 158 (14.3%) | 335 (15.7%) | 132 (13.3%) | 43 (19.8%) | 1167 (10.0%) |
| Gestational age at recruitment (weeks) | n | 6109 | 871 | 264 | 1105 | 2135 | 991 | 217 | 11692 |
| mean (S.D.) | 17.6 (6.1) | 16.8 (6.3) | 17.8 (6.4) | 19.8 (7.3) | 20.2 (7.2) | 20.0 (6.9) | 21.2 (7.6) | 18.5 (6.7) | |
| median | 16.6 | 16.0 | 16.9 | 19.4 | 20.0 | 19.9 | 20.0 | 17.4 | |
| min : max | 3.6 : 39.4 | 5.3 : 39.1 | 6.3 : 38.4 | 5.4 : 40.3 | 5.0 : 39.9 | 4.0 : 38.6 | 5.3 : 37.7 | 3.6 : 40.3 | |
| High school education | n (%) | 3946 (64.6%) | 446 (51.2%) | 121 (45.8%) | 274 (24.8%) | 419 (19.6%) | 246 (24.8%) | 47 (21.7%) | 5499 (47.0%) |
| Living with spouse or partner | n (%) | 5532 (90.6%) | 724 (83.1%) | 223 (84.5%) | 984 (89.0%) | 1930 (90.4%) | 889 (89.7%) | 185 (85.3%) | 10467 (89.5%) |
| Edinburgh Depression Scale >= 13 | n (%) | 1529 (25.0%) | 243 (27.9%) | 95 (36.0%) | 545 (49.3%) | 1141 (53.4%) | 531 (53.6%) | 117 (53.9%) | 4201 (35.9%) |
| Received government assistance | n (%) | 1811 (29.6%) | 402 (46.2%) | 119 (45.1%) | 375 (33.9%) | 756 (35.4%) | 390 (39.4%) | 94 (43.3%) | 3947 (33.8%) |
NOTE: All tests for differences across trajectory groups are significant (p values <0.0001)