Variable |  | Full Cohort (n = 1410) | Included (n = 897) | Excluded (n = 513) | P-valuea |
---|---|---|---|---|---|
Birth weight (g) | mean ± SD | 3205 ± 538 | 3208 ± 527 | 3199 ± 559 | 0.776 |
Adiposity (% fat mass)b | mean ± SD | 9.2 ± 4.0 | 9.0 ± 4.0 | 9.5 ± 3.9 | 0.028 |
Maternal Race/Ethnicity | Â | Â | Â | Â | 0.003 |
 Hispanic/Latina | n (%) | 351 (25) | 238 (27) | 113 (22) |  |
 White non-Hispanic | n (%) | 751 (52) | 445 (50) | 306 (60) |  |
 African American | n (%) | 219 (16) | 154 (17) | 65 (13) |  |
 Other | n (%) | 89 (6) | 60 (7) | 29 (6) |  |
Maternal age (years) | mean ± SD | 27.8 ± 6.2 | 27.6 ± 6.2 | 28 ± 6.2 | 0.254 |
Mean CPSS Score | mean ± SD | 18.8 ± 3.1 | 18.6 ± 3.1 | 19.2 ± 3.1 | 0.002 |
Mean EPDS Score | mean ± SD | 4.4 ± 3.4 | 4.3 ± 3.3 | 4.6 ± 3.7 | 0.125 |
Pre-pregnancy body mass index (kg/m2) | Â | 0.583 | |||
 Underweight (< 18.5) | n (%) | 44 (3) | 30 (3) | 14 (3) |  |
 Normal (18.5—25) | n (%) | 727 (52) | 453 (51) | 274 (54) |  |
 Overweight (25—30) | n (%) | 355 (25) | 235 (26) | 120 (24) |  |
 Obese (> 30) | n (%) | 280 (20) | 179 (20) | 101 (20) |  |
Maternal education level | Â | Â | Â | Â | 0.816 |
 Less than high school | n (%) | 204 (14) | 137 (15) | 67 (13) |  |
 High school or GED | n (%) | 259 (18) | 166 (19) | 93 (18) |  |
 Some college/Associate's | n (%) | 334 (24) | 208 (23) | 126 (25) |  |
 Bachelor's Degree | n (%) | 309 (22) | 196 (22) | 113 (22) |  |
 Graduate Degree | n (%) | 304 (22) | 190 (21) | 114 (22) |  |
Any smoking during pregnancy? | Â | Â | Â | Â | 0.940 |
 No | n (%) | 1286 (91) | 819 (91) | 467 (91) |  |
 Yes | n (%) | 124 (9) | 78 (9) | 46 (9) |  |
Any SHS exposure during pregnancy? | Â | Â | Â | Â | 0.662 |
 No | n (%) | 924 (75) | 666 (74) | 258 (76) |  |
 Yes | n (%) | 314 (25) | 231 (26) | 83 (24) |  |
Infant sex | Â | Â | Â | Â | 0.508 |
 Female | n (%) | 646 (48) | 438 (49) | 208 (47) |  |
 Male | n (%) | 696 (52) | 459 (51) | 237 (53) |  |
Gestational age (weeks) | mean ± SD | 39.2 ± 1.9 | 39.3 ± 1.8 | 39.1 ± 2.2 | 0.052 |
Term status | Â | Â | Â | Â | 0.147 |
 Pre-term (< 37 weeks) | n (%) | 90 (7) | 60 (7) | 30 (6) |  |
 Early Term (37 to < 39 weeks) | n (%) | 331 (24) | 200 (22) | 131 (28) |  |
 Full Term (39 to < 41 weeks) | n (%) | 802 (59) | 538 (60) | 264 (57) |  |
 Late Term (41 to < 42 weeks) | n (%) | 126 (9) | 87 (10) | 39 (8) |  |
 Post-term (> = 42 weeks) | n (%) | 15 (1) | 12 (1) | 3 (1) |  |
Low birth weight (< 2500 g) | n (%) | 104 (8) | 67 (7) | 37 (8) | 0.805 |
Days from delivery to PEA POD (days) | mean ± SD | 1.6 ± 2.4 | 1.6 ± 2.5 | 1.8 ± 2.3 | 0.235 |