|
Selected Characteristics of 23,420 Mother Placenta Pairs in the Collaborative Perinatal Project. |
|
| Maternal Socio-Demographic Characteristics |
|
|
|
|
| Age (years) |
24.5 ± 5.9 |
| Education (years) |
|
| ≥ 12 |
11,087 (47.4) |
| < 12 |
12,333 (52.7) |
| Race |
|
| White |
12,198 (52.1) |
| Black |
11,222 (47.9) |
| Annual Family Income |
|
| ≥ $5,000† |
6,907 (29.5) |
| < $5,000† |
16,513 (70.5) |
| Smoking Intensity |
22.8 ± 4.3 |
| Non-Smoker |
12, 350 (52.7) |
| Light Smoker (< 1 pack/day) |
7, 084 (30.3) |
| Heavy Smoker (≥ 1 pack/day) |
3, 986 (17.0) |
| Pre-pregnancy BMI (kg/m2) |
22.8 ± 4.3 |
| Pregnancy weight gain (kg) |
9.7 ± 5.0 |
| Maternal Obstetric Characteristics |
|
| Anemia |
5,024 (21.5) |
| Gestational Diabetes |
360 (1.6) |
| Hypertensive disease |
543 (2.3) |
| Parity |
|
| Nulliparous |
6,687 (28.6) |
| Parous |
16,733 (71.5) |
| Placental Characteristics |
|
| Placental Weight (grams) |
438 ± 92 |
| Placental thickness (mm) |
21.9 ± 4.8 |
| Chorionic plate area (cm2) |
247.5 ± 51.3 |
|
All results presented as n (%) or mean ± SD † Equivalent to approximately $30,000 in 2005. | |
Baptiste-Roberts et al. BMC Pregnancy and Childbirth 2008 8:44 doi:10.1186/1471-2393-8-44 |
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