TABLE 1. Descriptive Statistics for the Study Sample.
| Neonatal characteristics | Mean (SD) | N | % |
| Gestational age (weeks) | 39 (1.3) | ||
| Apgar (5 minute) | 9 (0.2) | ||
| Birth weight (grams) | 3213 (4.2) | ||
| Females | 48 | 55 | |
| Circumcised males | 32 | 37 | |
| Uncircumcised males | 7 | 8 | |
| Perinatal and obstetrical factors | Mean (SD) | N | % |
| ROS Total Score | 3.17 (1.8) | ||
| ROS-Delivery Subscale | 2.38 (1.4) | ||
| Caesarean delivery | 19 | 22 | |
| Formula fed | 74 | 85 | |
| Maternal psychological factors | Mean (SD) | N | % |
| Maternal Life Stressors (DLC score) | 2.7 (1.7) | ||
| Past Major Depressive Disorder | 14 | 16 | |
| Current Major Depressive Disorder | 5 | 6 | |
| Maternal demographic summary | Mean (SD) | N | % |
| Maternal age | 23 (4.7) | ||
| Income per month (dollars) | 626 (645) | ||
| High-school completion | 62 | 71 | |
| Living with a partner | 65 | 74 | |
| Regular prenatal care | 80 | 92 |