Table 1.
Comparison of dyads included and not included at the 3 year evaluation.a
| n(%) or Mean (SD) | Included N=284 |
Excluded N=128 |
p-value |
|---|---|---|---|
| MATERNAL/DEMOGRAPHIC CHARACTERISTICS | |||
| Race | 0.639 | ||
| White | 106 (37.3%) | 54 (42.2%) | |
| Hispanic | 66 (23.2%) | 26 (20.3%) | |
| Pacific Islander | 50 (17.6%) | 21 (16.4%) | |
| Asian | 36 (12.7%) | 21 (16.4%) | |
| Black | 17 (6.0%) | 4 (3.1%) | |
| American Indian | 8 (2.8%) | 2 (1.6%) | |
| Other | 1 (0.4%) | 0 (0%) | |
| Low SES | 60 (21.1%) | 33 (26.2%) | 0.259 |
| Public insurance | 247 (87.0%) | 116 (90.6%) | 0.484 |
| Partner at birth | 160 (56.3%) | 67 (52.3%) | 0.451 |
| Education <12 years | 113 (39.8%) | 59 (46.8%) | 0.183 |
| Maternal age (yr) | 25.2 (5.7) | 25.2 (5.6) | 0.971 |
| GA at 1st prenatal visit | 11.2 (7.0) | 13.8 (7.9) | 0.001 |
| Prenatal care | 271 (95.4%) | 120 (93.8%) | 0.475 |
| Prenatal methamphetamine (MA) use | 139 (48.9%) | 65 (50.8%) | 0.730 |
| Heavy MA use (≥ 3 days/wk across pregnancy) | 27 (9.6%) | 9 (7.3%) | 0.719 |
| Prenatal tobacco use | 144 (50.7%) | 74 (57.8%) | 0.181 |
| Average number of cigarettes/day across pregnancy | 6.4 (10.0) | 8.1 (11.4) | 0.136 |
| Prenatal alcohol use | 70 (24.6%) | 36 (28.1%) | 0.455 |
| Average oz. absolute alcohol/day across pregnancy | 0.18 (0.75) | 0.28 (0.72) | 0.183 |
| Prenatal marijuana use | 55 (19.4%) | 21 (16.4%) | 0.473 |
| Average number of joints/day across pregnancy | 0.13 (0.43) | 0.07 (0.20) | 0.108 |
| NEONATAL CHARACTERISTICS | |||
| Gender (boy) | 149 (52.5%) | 71 (55.5%) | 0.572 |
| Birth Weight (g) | 3,262 (622) | 3,215 (546) | 0.454 |
| Length (cm) | 50.5 (3.5) | 50.2 (2.9) | 0.338 |
| Head Circumference (cm) | 33.9 (1.9) | 33.9 (1.7) | 0.880 |
| Gestational Age (weeks) | 38.6 (2.2) | 38.7 (1.8) | 0.929 |
| Small for Gestational Age | 41 (14.4%) | 14 (10.9%) | 0.334 |
| Low Birth (<2500) | 34 (12.0%) | 13 (10.2%) | 0.592 |
a
1 year visit: 331 participants included were less likely to be low SES than 81 excluded (21% vs. 32%, P = 0.034). 2 year visit: No significant differences for 288 vs. 124 excluded (P > 0.05).