|
Overall |
DC |
MC |
p |
|
mean±SD/n(%) |
mean±SD/n(%) |
mean±SD/n(%) |
|
Maternal characteristic |
n=224 |
n=174 |
n=50 |
|
Age(year), n(%) |
|
|
|
0.006 |
mean±SD |
31.97 ±3.75 |
32.30 ±3.49 |
30.82 ±4.40 |
|
<35 |
180 (80.4) |
137 (78.7) |
43 (86.0) |
|
≥35 |
44 (19.6) |
37 (21.3) |
7 (14.0) |
|
Maternal weight, kg |
59.09 ±8.98 |
59.52 ±9.38 |
57.59 ±7.28 |
0.228 |
First gestation, n (%) |
|
|
|
0.625 |
Yes |
141 (62.9) |
111 (63.8) |
30 (60.0) |
|
No |
83 (37.1) |
63 (36.2) |
20 (40.0) |
|
Primipara, n (%) |
|
|
|
0.081 |
Yes |
199 (88.8) |
158 (90.8) |
41 (82.0) |
|
No |
25 (11.2) |
16 (9.2) |
9 (18.0) |
|
History of abortion, n (%) |
|
|
|
0.404 |
No |
155 (69.2) |
118 (67.8) |
37 (74.0) |
|
Yes |
69 (30.8) |
56 (32.2) |
13 (26.0) |
|
Pregnancy via ART, n (%) |
|
|
|
<0.001 |
No |
72 (32.1) |
42 (24.1) |
30 (60.0) |
|
Yes |
152 (67.9) |
132 (75.9) |
20 (40.0) |
|
Fetal fraction |
10.73 ±4.15 |
10.57 ±4.25 |
11.30 ±3.78 |
0.079 |
Gestational hypertension, n (%) |
|
|
|
0.976 |
No |
184 (82.1) |
143 (82.2) |
41 (82.0) |
|
Yes |
40 (17.9) |
31 (17.8) |
9 (18.0) |
|
Gestational diabetes, n (%) |
|
|
|
0.634 |
No |
180 (80.4) |
141 (81.0) |
39 (78.0) |
|
Yes |
44 (19.6) |
33 (19.0) |
11 (22.0) |
|
Thyroid disease, n (%) |
|
|
|
0.977 |
None |
191 (85.3) |
147 (84.5) |
44 (88.0) |
|
Subclinical hypothyroidism |
5 (2.2) |
4 (2.3) |
1 (2.0) |
|
Hypothyroidism |
16 (7.1) |
13 (7.5) |
3 (6.0) |
|
Subclinical hyperthyroidism |
7 (3.1) |
6 (3.4) |
1 (2.0) |
|
Hyperthyroidism |
5 (2.2) |
4 (2.3) |
1 (2.0) |
|
Fetal characteristic |
n=448 |
n=348 |
n=100 |
|
Gestational age at delivery, week |
35.87 ±1.99 |
36.08 ±1.85 |
35.16
±2.27 |
<0.001 |
Preterm birth, n (%) |
|
|
|
0.004 |
No |
200 (44.6) |
168 (48.3) |
32 (32.0) |
|
Yes |
248 (55.4) |
180 (51.7) |
68 (68.0) |
|
Birth weight, g |
2413.55±466.54 |
2456.14±436.53 |
2265.35±535.05 |
0.001 |
Difference of birth weight |
0.12 ±0.11 |
0.11 ±0.11 |
0.12 ±0.12 |
0.331 |
Birth-weight discordance of 20%, n (%) |
Birth-weight discordance of
20%, n (%) |
|
|
0.795 |
No |
380 (84.8) |
296 (85.1) |
84 (84.0) |
|
Yes |
68 (15.2) |
52 (14.9) |
16 (16.0) |
|
Birth-weight discordance of 25%, n (%) |
Birth-weight discordance of
25%, n (%) |
|
|
0.988 |
No |
412 (92.0) |
320 (92.0) |
92 (92.0) |
|
Yes |
36 (8.0) |
28 (8.0) |
8 (8.0) |
|
sFGR, n (%) |
|
|
|
0.706 |
No |
416(92.9) |
324 (93.1) |
92 (92.0) |
|
Yes |
32 (7.1) |
24 (6.9) |
8 (8.0) |
|