Table 1.
Demographic and clinical characteristics of the 683 women who received intrapartum magnesium sulfate and their newborn infants.
| Maternal characteristics at the time of delivery | Mean (± SD) |
|
| |
| Age (yrs) | 27.4 (± 5.6) |
| Height (cm) | 165.2 (± 17.6) |
| Pre-pregnancy weight (kg) | 74.5 (± 20.6) |
| Current weight (kg) | 88.5 (± 20.5) |
| Estimated weight gain/loss during pregnancy (kg) | 13.9 (± 8.1) |
| Estimated body mass index (BMI) at time of delivery | 32.6 (± 7.5) |
|
| |
| Maternal race / ethnicity | Number (%) |
|
| |
| American Indian / Alaskan Native | 9 (1%) |
| Asian | 12 (2%) |
| Black | 8 (1%) |
| Hispanic | 108 (16%) |
| Pacific Islander | 16 (2%) |
| White | 517 (76%) |
| Other | 4 (1%) |
| Unknown / Not reported | 9 (1%) |
|
| |
| Maternal diagnoses * | Number (%) |
|
| |
| Mild pre-eclampsia / not otherwise specified | 130 (19%) |
| Severe pre-eclampsia | 341 (50%) |
| Eclampsia | 8 (1%) |
| Early-onset delivery | 267 (39%) |
| Early-onset delivery plus Pre-eclampsia / eclampsia | 210 (31%) |
|
| |
| Monitoring of magnesium serum concentrations | Number (%) |
|
| |
| Mothers with one concentration measured | 673 (99%) |
| Median (range; IQR) concentrations measured/patient | 2 (1–18; IQR 1–3) |
| Mean ± SD of 1st concentrations measured | 5.0 ± 1.9 mg/dL |
|
| |
| Newborn characteristics | |
|
| |
| Gestational age at delivery, weeks | 35.5 (± 3.2) |
| Birthweight, grams | 2,546 (± 792) |
*
Sums to more than 100% due to patients with multiple overlapping diagnoses (e.g., pre-eclampsia and early-onset delivery).