Table 1.
Descriptive statistics for unimputed ATP and Triple B data
| ATP (N=1052) | Triple B (N=1537) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| N | M/n | SD/% | 95% CI | % miss | N | M | SD | 95% CI | % miss | |
| Social support exposure | ||||||||||
| 3rd trimester pregnancy a (M/SD) | 734 | 27.51 | 2.28 | (27, 28%) | 30% | 1516 | 4.42 | 0.77 | (4, 4%) | 1% |
| 8-weeks post-birth b (M/SD) | 551 | 27.43 | 2.37 | (27, 28%) | 48% | 1112 | 2.49 | 0.52 | (2, 3%) | 28% |
| Outcomes (12-months) | ||||||||||
| Infant competencies c (M/SD) | 931 | 16.12 | 2.76 | (16, 16%) | 12% | 1247 | 11.20 | 3.03 | (11, 11%) | 19% |
| Cut-off (n/%) | 931 | 100 | 11% | (9, 13%) | 1247 | 33 | 3% | (2, 4%) | ||
| Infant problems d (M/SD) | 932 | 7.13 | 4.32 | (7, 7%) | 11% | 1247 | 20.52 | 13.49 | (20, 21%) | 19% |
| Cut-off (n/%) | 932 | 109 | 12% | (10, 14%) | 1247 | 45 | 4% | (3, 5%) | ||
| Potential Confounders | ||||||||||
| Maternal age (M/SD) | 1052 | 32.03 | 2.35 | (32, 32%) | 0% | 1535 | 32.53 | 5.11 | (32, 33%) | <1% |
| Financial status (M/SD) | 930 | 3.11 | 0.88 | (3, 3%) | 12% | 1534 | 7.96 | 2.23 | (8, 8%) | <1% |
| Education | 31% | <1% | ||||||||
| <University (n/%) | 721 | 242 | 34% | (30, 37%) | 1532 | 495 | 32% | (30, 35%) | ||
| ≥University (n/%) | 721 | 479 | 66% | (63, 70%) | 1532 | 1037 | 68% | (65, 70%) | ||
| Ethnicity | 73% | <1% | ||||||||
| Australian (n/%) | 281 | 247 | 88% | (84, 91%) | 1532 | 855 | 56% | (53, 58%) | ||
| Not Australian (n/%) | 281 | 34 | 12% | (9, 16%) | 1532 | 677 | 44% | (42, 47%) | ||
| Child sex | 0% | 3% | ||||||||
| Male (n/%) | 1052 | 510 | 48% | (45, 52%) | 1496 | 770 | 51% | (49, 54%) | ||
| Female (n/%) | 1052 | 542 | 52% | (48, 55%) | 1496 | 726 | 49% | (46, 51%) | ||
ATP Australian Temperament Project, Triple B Triple B Pregnancy Cohort Study, SD standard deviation, N available data for each variable; a=Social support in 3rd trimester of pregnancy assessed with the MSSS (ATP) and single-item (Triple B); b=Social support 8-weeks post-birth assessed with the MSSS (ATP) and helpful support items (Triple B); c=Infant competencies assessed with the BITSEA competencies (ATP) and BAYLEY-SE Competencies (Triple B), d=Infant problems assessed with the BITSEA problems (ATP) and ASQ-SE problems (Triple B)