Table 1 Sample description for gene polymorphism analysis
From: The association between sex-related interleukin-6 gene polymorphisms and the risk for cerebral palsy
Characteristic | CP cases | Control | ||
|---|---|---|---|---|
Total (%) | M/F (n) | Total (%) | M/F (n) | |
Type of CP | Â | Â | Â | Â |
Spastic CP | 456 (64.0) | 325/131 | – | – |
Non-spastic CP | 257 (36.0) | 169/88 | – | – |
Total | 713 (100) | 494/219 | 753 (100) | 491/262 |
Gestational age | Â | Â | Â | Â |
Term (≥37 weeks) | 496 (69.6) | 338/158 | 742 (98.5) | 481/261 |
Preterm (<37Â weeks) | 217 (30.4) | 156/61 | 11 (1.5) | 10/1 |
Total | 713 (100) | 494/219 | 753 (100) | 491/262 |
Birth weight | Â | Â | Â | Â |
≥2,500 g | 552 (77.4) | 390/162 | 731 (97.1) | 475/256 |
<2,500Â g | 161 (22.6) | 104/57 | 22 (2.9) | 16/6 |
Total | 713 (100) | 494/219 | 753 (100) | 491/262 |
Birth asphyxia | Â | Â | Â | Â |
No asphyxia | 484 (67.9) | 326/158 | 741 (98.4) | 482/259 |
Asphyxia | 229 (32.1) | 168/61 | 12 (1.6) | 9/3 |
Total | 713 (100) | 494/219 | 753 (100) | 491/262 |
Complication | Â | Â | Â | Â |
With PVL | 75 (10.5) | 56/19 | – | – |
Without PVL | 638 (89.5) | 438/200 | – | – |
With MR | 274 (38.4) | 185/89 | – | – |
Without MR | 439 (61.6) | 309/130 | – | – |
With HIE | 342 (48.0) | 245/97 | – | – |
Without HIE | 371 (52.0) | 249/122 | – | – |
Maternal factors | Â | Â | Â | Â |
PROM | 88 (12.3) | 62/26 | 14 (1.9) | 11/3 |
No PROM | 625 (87.7) | 432/193 | 739 (98.1) | 480/259 |
TPL | 57 (8.0) | 42/15 | 23 (3.1) | 17/6 |
No TPL | 656 (92.0) | 452/204 | 730 (96.9) | 474/256 |
PIH | 35 (4.9) | 23/12 | 14 (1.9) | 12/2 |
No PIH | 678 (95.1) | 471/207 | 739 (98.1) | 479/260 |