Table 1. Clinical characteristics of pregnant women with early and late onset preeclampsia and the matched control group (Control A and B).
| Control A23–33+6 weeks(n = 40) | ePE23–33+6 weeks(n = 36) | Control B34–39 weeks(n = 40) | LPE34–39 weeks(n = 40) | |
| Maternal age(years) | 27.5±3.6 | 31.6±5.9 | 26.7±5.3 | 29.5±4.1 |
| Gestational age(weeks) | 29.1±2.5 | 28.8±3.1 | 37.3±1.9 | 37.1±2.2 |
| Birth weight(g) | 1078.5±438.7 | 1038.9±470.2 | 3147.2±746.1 | 3062.7±802.8 |
| Placental weight(g) | 384.2±104.7 | 278.8±93.7 | 425.2±79.3 | 493.4±112.4 |
| SBP(mmHg) | 114.5±11.6 | 166.9±14.7* | 112.2±8.1 | 162.7±18.2 $ |
| DBP(mmHg) | 64.2±7.5 | 106.4±13.6* | 68.0±8.2 | 95.1±6.8$ |
| Proteinuria | N/A | ++-+++ | N/A | +-+++ |
Values are shown as mean ± SD.
PE, preeclampsia; SBP, maximal systolic blood pressure; DBP, maximal diastolic blood pressure; Control A and Control B are gestational age-matched controls of normal pregnancies for ePE and lPE, respectively.
*
P<0.05, ePE versus Control A.
$
P<0.05, lPE versus Control B.
There were no significant differences in maternal age and delivery age between early and late-onset preeclampsia group and the matched control groups (p≥0.05). The blood pressure, systolic and diastolic blood pressures were significantly higher in preeclampsia groups than that in the matched control group (p<0.05).