Table 1.
Characteristics of the subjects in each group
| Nonpregnant | Pregnant
|
Postpartum | |||
|---|---|---|---|---|---|
| First trimester | Second trimester | Third trimester | |||
| Number of subjects | 76 | 193 | 269** | ||
| Number of measurements | 90 | 110 | 110 | 218 | 347 |
| Age (yr)* | 41±12 (14–74) | 31±6 (18–41) | 32±5 (19–42) | 32±6 (14–74) | 32±5 (17–44) |
| Nulliparity (%) | 17.1 | 45.5 | 46.4 | 32.6 | 33.1*** |
| Gestational age (weeks)* | – | 10±2 (6–14) | 26±2 (15–28) | 35±2 (29–40) | 3±2 (0–8)**** |
| Height (cm)* | 158±6 (142–173) | 158±6 (141–173) | 159±5 (145–172) | 158±5 (142–172) | 158±5 (142–173) |
| Weight (kg)* | 58±11 (40–95) | 55±9 (42–86) | 55±11 (45–107) | 54±9 (36–105) | 52±8 (42–105) |
| SpHb (mg/dL)* | 11.9±1.8 (4.9–15.3) | 12.6±1.0 (10.7–14.5) | 12.0±1.3 (8.1–15.7) | 12.2±1.3 (8.8–17.6) | 11.3±1.4 (6.3–14.5) |
| tHb (mg/dL)* | 12.1±2.1 (6.2–15.2) | 12.4±1.1 (10.0–15.2) | 11.0±1.2 (6.9–13.5) | 10.8±1.1 (8.2–14.7) | 10.2±1.4 (4.6–13.8) |
| PI (%)* | 5.8±3.7 (0.8–20) | 7.8±4.8 (0.93–20) | 8.5±4.3 (0.81–18.6) | 10.4±4.9 (0.68–20) | 10.7±4.9 (0.36–20) |
| PR (beats per minute)* | 77±10 (54–101) | 78±12 (60–107) | 84±13 (57–117) | 86±15 (54–125) | 75±13 (50–125) |
| SpO2 (%)* | 98.3±1.2 (94–100) | 98.4±1.0 (96–100) | 98.1±1.02 (95–100) | 97.7±1.0 (93–100) | 97.4±1.4 (874–100) |
Notes:
*
Values are expressed as mean ± SD (range)
**
fifty-eight postpartum women were measured also during pregnancy
***
primiparity
****
postpartum days.
Abbreviations: PI, perfusion index; PR, pulse rate; SD, standard deviation; SpHb, percutaneous hemoglobin; SpO2; partial pressure of oxygen in arterial blood; tHb, total hemoglobin.