Table 1 Sociodemographic characteristics
| Â | BPD-RDS | CHD | PRETERM | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
≤29 WGA | 30-35 WGA | Overall | ≤29 WGA | 30-35 WGA | >35 WGA | Overall | ≤29 WGA | 30-35 WGA | Overall | |||||||||||
N | 366 | 718 | 1084 | 21 | 507 | 2758 | 3286 | 67 | 3759 | 3826 | ||||||||||
Sex | ||||||||||||||||||||
 Male | 190 | 51.9% | 399 | 55.6% | 589 | 54.3% | 13 | 61.9% | 236 | 46.5% | 1474 | 53.4% | 1723 | 52.4% | 34 | 50.7% | 2015 | 53.6% | 2049 | 53.6% |
 Female | 176 | 48.1% | 319 | 44.4% | 495 | 45.7% | 8 | 38.1% | 271 | 53.5% | 1284 | 46.6% | 1563 | 47.6% | 33 | 49.3% | 1744 | 46.4% | 1777 | 46.4% |
Birth month | ||||||||||||||||||||
 October-March | 169 | 46.2% | 376 | 52.4% | 545 | 50.3% | 7 | 33.3% | 243 | 47.9% | 1351 | 49.0% | 1601 | 48.7% | 35 | 52.2% | 1926 | 51.2% | 1961 | 51.3% |
 April-September | 197 | 53.8% | 342 | 47.6% | 539 | 49.7% | 14 | 66.7% | 264 | 52.1% | 1407 | 51.0% | 1685 | 51.3% | 32 | 47.8% | 1833 | 48.8% | 1865 | 48.7% |
Birth weight | ||||||||||||||||||||
 Mean | 1.0 (±0.3) | 1.8 (±0.5) | 1.6 (±0.6) | 1.4 (±0.7) | 2.0 (±0.5) | 3.2 (±0.5) | 3.0 (±0.7) | 1.8 (±0.9) | 2.3 (±0.5) | 2.3 (±0.5) | ||||||||||
 Median | 1.0 (0.8-1.2) | 1.8 (1.5-2.1) | 1.5 (1.1-1.9) | 1.3 (1.1-1.4) | 2.0 (1.6-2.3) | 3.3 (2.9-3.6) | 3.2 (2.7-3.5) | 1.4 (1.1-2.4) | 2.3 (1.9-2.6) | 2.2 (1.9-2.6) | ||||||||||
DBH | ||||||||||||||||||||
 Mean | 82.9 (±40.4) | 34.5 (±33.1) | 51 (±42.4) | 54.3 (±27.5) | 23.5 (±20.8) | 9.5 (±18.5) | 12 (±19.9) | 32.8 (±28.7) | 13.8 (±18.1) | 14.1 (±18.5) | ||||||||||
 Median | 73 (61-92) | 30 (17- 42) | 41 (23-67) | 48 (40 - 73) | 19 (12 - 30) | 5 (4 - 9) | 6 (4 - 12) | 33 (4 - 53) | 10 (6.- 17) | 10 (6 - 17) | ||||||||||
Age a | ||||||||||||||||||||
 Mean | 35.1 (±6.3) | 34.9 (±6.2) | 35.0 (±6.3) | 34.6 (±5.4) | 35.6 (±6.3) | 33.8 (±5.8) | 34.1 (±5.9) | 32.6 (±5.0) | 34.4 (±6.4) | 34.4 (±6.4) | ||||||||||
 Median | 35.4 (31.1-39.1) | 35.2 (30.8-39.1) | 35.4 (31.0-39.1) | 35.1 (30.3-37.9) | 35.9 (31.4-39.8) | 33.9 (30.0-37.8) | 34.2 (30.2-38.1) | 32.8 (29.0-36.2) | 34.6 (30.1-38.8) | 34.5 (30.1-38.8) | ||||||||||
Occupation a | ||||||||||||||||||||
 Employed | 191 | 52.2% | 388 | 54.0% | 579 | 53.4% | 8 | 38.1% | 339 | 66.9% | 1686 | 61.1% | 2033 | 61.9% | 29 | 43.3% | 1949 | 51.8% | 1978 | 51.7% |
 Unemployed | 110 | 30.1% | 185 | 25.8% | 295 | 27.2% | 8 | 38.1% | 94 | 18.5% | 444 | 16.1% | 546 | 16.6% | 15 | 22.4% | 961 | 25.6% | 976 | 25.5% |
 Housewife | 52 | 14.2% | 117 | 16.3% | 169 | 15.6% | 4 | 19.0% | 64 | 12.6% | 472 | 17.1% | 540 | 16.4% | 17 | 25.4% | 667 | 17.7% | 684 | 17.9% |
 Other | 13 | 3.6% | 28 | 3.9% | 41 | 3.8% | 1 | 4.8% | 10 | 2.0% | 156 | 5.7% | 167 | 5.1% | 6 | 9.0% | 182 | 4.8% | 188 | 4.9% |
Education a | ||||||||||||||||||||
 Low | 24 | 6.6% | 46 | 6.4% | 70 | 6.5% | - | - | 29 | 5.7% | 335 | 12.1% | 364 | 11.1% | 10 | 14.9% | 361 | 9.6% | 371 | 9.7% |
 Middle | 74 | 20.2% | 131 | 18.2% | 205 | 18.9% | 7 | 33.3% | 93 | 18.3% | 504 | 18.3% | 604 | 18.4% | 20 | 29.9% | 832 | 22.1% | 852 | 22.3% |
 High | 182 | 49.7% | 352 | 49.0% | 534 | 49.3% | 9 | 42.9% | 269 | 53.1% | 1275 | 46.2% | 1553 | 47.3% | 24 | 35.8% | 1621 | 43.1% | 1645 | 43.0% |
 Higher | 71 | 19.4% | 167 | 23.3% | 238 | 22.0% | 5 | 23.8% | 113 | 22.3% | 594 | 21.5% | 712 | 21.7% | 11 | 16.4% | 866 | 23.0% | 877 | 22.9% |
 Missing | 15 | 4.1% | 22 | 3.1% | 37 | 3.4% | - | - | 3 | 0.6% | 50 | 1.8% | 53 | 1k6% | 2 | 3.0% | 79 | 2.1% | 81 | 2.1% |