Table 3.
Clinical characteristics of the subjects.
| Nonpregnancy (n = 135) | Pregnancy (n = 336) | Pregnancy+P4 (n = 117) | |
|---|---|---|---|
| Ag (years) | 31.49 ± 0.40 | 30.84 ± 0.23 | 30.81 ± 0.37 |
| BMI (kg/m2) | 24.33 ± 0.64 | 27.97 ± 0.38∗∗ | 28.22 ± 0.58 |
| Gestational week | — | 38.73 ± 0.08 | 38.9 ± 0.10 |
| Gravidity | — | 2.14 ± 0.07 | 2.14 ± 0.13 |
| Parity | — | 0.41 ± 0.03 | 0.43 ± 0.06 |
| HR (bpm) | 82.93 ± 1.01 | 92.88 ± 1.01∗∗ | 90.51 ± 1.21 |
| QT (ms) | 351.19 ± 2.48 | 341.56 ± 1.34∗∗ | 342.56 ± 2.30 |
| QTc(ms) | 409.91 ± 1.60 | 421.60 ± 0.97∗∗ | 417.81 ± 1.51# |
P4: progesterone; HR: heart rate; QTc: heart-rate corrected QT (QTc) interval intervals calculated using Bazett's formula (QTc = QT/√RR). ∗∗p < 0.01 vs. nonpregnancy and #p < 0.05 vs. pregnancy.