Table 1.
Maternal sleep study and perinatal characteristics of pregnant women.
| Values | |
|---|---|
| Maternal age, mean (SD), years | 33 (4.0) |
| Nulliparous, n (%) | 69 (51) |
| Maternal BMI at enrollment, mean (SD), kg/m2 | 27.6 (4.0) |
| Current smokers, n (%) | 8 (6) |
| Total sleep time in hours, mean (SD) | 5.9 (1.2) |
| AHI, median (IQR, range), events/h | 1.4 (3.9, 0–21) |
| SpO2, mean (SD, range), % | 96 (1.1, 92–98) |
| SpO2 nadir, median (IQR, range), % | 93 (3, 82–97) |
| Percentage of time spent in SpO2 <90%, median (IQR, range) | 0 (0, 0–35) |
| Percentage of time in a supine position, mean (SD) | 47 (26) |
| Percentage of time in a prone position, mean (SD) | 19 (21) |
| Percentage of time in a left-sided position, mean (SD) | 18 (18) |
| Percentage of time in a right-sided position, mean (SD) | 16 (20) |
| Mean gestational age at delivery, mean (SD), weeks | 39.3 (1.3) |
| Birth-weight percentile, mean (SD) | 60 (25) |
| Newborn sex, % | |
| Boys | 60 |
| Girls | 40 |
| Apgar score 1 minute, mean (SD) | 8.8 (0.9) |
| Apgar score 1 minute <7, % | 3 |
| Apgar score 5 minutes, mean (SD) | 9.8 (0.5) |
| Apgar score 5 minutes <7, % | 0 |
N = 148. AHI = apnea-hypopnea index; BMI = body mass index; IQR = interquartile range; SpO2 = peripheral oxygen saturation.