Variable | Preterm birth | Total n (%) | p-value | |||
Yes | No | |||||
N | (%) | n | (%) | |||
Age |
|
|
|
|
| 0.043 |
<20 year | 86 | 42.8 | 115 | 57.2 | 201 (10.3) | |
20-35 year | 469 | 34.4 | 894 | 65.6 | 1363 (70.1) | |
>35 year | 125 | 32.9 | 255 | 67.1 | 380 (19.6) | |
Education |
|
|
|
|
| 0.217 |
Elementary School | 126 | 32.3 | 264 | 67.7 | 390 (20.1) | |
Middle School | 228 | 37.7 | 377 | 62.3 | 605 (31.1) | |
High School | 218 | 35.6 | 395 | 64.4 | 613 (31.5) | |
University | 108 | 32.1 | 228 | 67.9 | 336 (17.3) | |
Antenatal care |
|
|
|
|
| <0.001 |
<4 times | 68 | 52.3 | 62 | 47.7 | 130 (6.7) | |
≥4 times | 612 | 33.7 | 1202 | 66.3 | 1,814 (93.3) | |
Parity |
|
|
|
|
| 0.381 |
Primipara | 299 | 35.6 | 542 | 64.4 | 841 (43.3) | |
Multipara | 360 | 35.1 | 667 | 64.9 | 1,027 (52.8) | |
Grande Multipara | 21 | 27.6 | 55 | 72.4 | 76 (3.9) | |
Pregnancy Interval |
|
|
|
|
| 0.759 |
<24 months | 54 | 37.5 | 90 | 62.5 | 144 (7.4) | |
≥24 months | 362 | 35.1 | 669 | 64.9 | 1031 (53) | |
First pregnancy | 264 | 34.3 | 505 | 65.7 | 769 (39.6) | |
Labor Histories Preterm birth history |
|
|
|
|
| <0.001 |
Yes | 74 | 54.8 | 61 | 45.2 | 135 (6.9) | |
No | 606 | 33.5 | 1203 | 66.5 | 1809 (93.1) | |
History of abortion |
|
|
|
|
| 0.422 |
Yes | 101 | 37.1 | 171 | 62.9 | 272 (14) | |
No | 579 | 34.6 | 1093 | 65.4 | 1672 (86) | |
Anemia |
|
|
|
|
| <0.001 |
Yes | 195 | 42.1 | 268 | 57.9 | 463 (23.8) | |
No | 485 | 32.7 | 996 | 67.3 | 1481 (76.2) | |
Hypertension |
|
|
|
|
| <0.001 |
No hypertension | 483 | 33.5 | 959 | 66.5 | 1442 (74.2) | |
Gestational hypertension | 16 | 17.4 | 76 | 82.6 | 92 (4.7) | |
Preeclampsia | 137 | 46 | 161 | 54 | 298 (15.3) | |
Eclampsia | 30 | 66.7 | 15 | 33.3 | 45 (2.3) | |
Chronic hypertension | 14 | 20.9 | 53 | 79.1 | 67 (3.4) | |
Antepartum hemorrhage |
|
|
|
|
| <0.001 |
Yes | 76 | 75.2 | 25 | 24.8 | 101 (5.2%) | |
No | 604 | 24.8 | 1239 | 67.2 | 1843 (94.8) | |
PROM |
|
|
|
|
|
0.649
|
Yes | 107 | 33.9 | 209 | 66.1 | 316 (16.3) | |
No | 573 | 35.2 | 1055 | 64.8 | 1628 (83.7) | |
Total | 1264 | 65 | 680 | 35 | 1944 |
|