表 1. Generalconditions and pregnancy outcome of the VM group and the control group.
VM组与对照组一般情况及妊娠结局
| Category | VM group (n=295) | Control group (n=281) |
| a: 3 VM and 5 control had unclear gender; b: 75 VM subjects and 46 controls underwent the TORCH test; c: 130 VM subjects and 58 controls underwent amniocentesis for fetal karyotyping or chromosome microarray analysis; d: 229 VM subjects vs. 265 controls; *P<0.05, vs. control group; #P<0.05, gestational weeks of delivery between the two groups was statistically different. | ||
| Maternal age/yr. | 30.89±4.36 | 31.30±4.06 |
| Body mass index/(kg/m2) | 21.08±2.84 | 21.00±2.70 |
| Gravidity | 2.43±1.49 | 2.29±1.51 |
| Parity | 1.29±0.56 | 1.34±0.56 |
| Pregnancy with complications/case (%) | 158 (53.56) | 142 (50.53) |
| IVF-ET/case (%) | 35 (11.86)* | 18 (6.41) |
| Multiple pregnancy/case (%) | 40 (13.56) | 28 (9.96) |
| Male fetus/case (%)a | 174 (59.59)* | 138 (50.00) |
| Follow-upperiod/month | 33.17±26.01 | 37.56±28.60 |
| IgM positive of TORCH/case (%)b | 11 (14.67) | 6 (13.04) |
| Abnormal chromosomal analysis of amniocentesis/case (%)c | 11 (8.46) | 3 (5.17) |
| Gestational week of delivery/case (%)# | ||
| <28 weeks | 26 (8.81) | 13 (4.63) |
| 28-36 weeks | 81 (27.46) | 46 (16.37) |
| ≥37 weeks | 188 (63.73) | 222 (79.00) |
| Body length of fetus/mmd | 46.70±6.17* | 47.93±5.35 |
| Body mass of fetus/gd | 2 836.56±955.58* | 3 007.18±703.65 |
| Apgar score at 1 minuted | 9.72±0.75 | 9.83±0.66 |
| Apgarscore at 5 minutesd | 9.92±0.35 | 9.94±0.28 |
| Apgarscore at 10 minutesd | 9.96±0.24 | 9.97±0.18 |
| Transfer to NICU/case (%)d | 48 (20.96)* | 12 (4.53) |