Neonatal characteristics of singleton live births in nonimmigrant and immigrant groups
| Characteristic | Nonimmigrants, no. (%) of births* n = 761 260 | Immigrants, by world region; no. (%) of births* | ||||||
|---|---|---|---|---|---|---|---|---|
| All immigrants n = 328 387 | Europe, Western Nations n = 51 268 | Africa, Caribbean n = 42 813 | North Africa, Middle East n = 32 920 | Latin America n = 25 255 | East Asia, Southeast Asia, Pacific n = 73 979 | South Asia n = 102 152 | ||
| Small for gestational age | ||||||||
| Based on Canadian birth-weight curve | 82 257 (10.8) | 54 211 (16.5) | 5 393(10.5) | 7 203 (16.8) | 4 362 (13.3) | 3 874 (15.3) | 11 883 (16.1) | 21 496 (21.0) |
| Based on world region– specific birth-weight curves | 82 257 (10.8) | 33 780 (10.3) | 5 265 (10.3) | 4 609 (10.8) | 3 273 (9.9) | 2 721 (10.8) | 7 468 (10.1) | 10 444 (10.2) |
| Based only on Canadian curve | 0 (0.0) | 20 431 (6.2) | 128 (0.2) | 2 594 (6.1) | 1 089 (3.3) | 1 153 (4.6) | 4 415 (6.0) | 11 052 (10.8) |
| Large for gestational age | ||||||||
| Based on Canadian birth-weight curve | 72 955 (9.6) | 17 684 (5.4) | 4 143 (8.1) | 2 755 (6.4) | 1 956 (5.9) | 1 480 (5.9) | 3 197 (4.3) | 4 153 (4.1) |
| Based on world region– specific birth-weight curve | 72 955 (9.6) | 31 966 (9.7) | 4 745 (9.3) | 4 200 (9.8) | 3 290 (10.0) | 2 333 (9.2) | 7 371 (10.0) | 10 027 (9.8) |
| Based only on world region–specific curves | 0 (0.0) | 14 282 (4.3) | 602 (1.2) | 1 445 (3.4) | 1 334 (4.1) | 853 (3.4) | 4 174 (5.6) | 5 874 (5.8) |
| Male sex | 389 967 (51.2) | 168 885 (51.4) | 26 371 (51.4) | 21 710 (50.7) | 16 828 (51.1) | 13 072 (51.8) | 38 226 (51.7) | 52 678 (51.6) |
| Preterm birth (23–36 wk) | 48 366 (6.4) | 19 110 (5.8) | 2 608 (5.1) | 3 108 (7.3) | 1 584 (4.8) | 1 665 (6.6) | 4 189 (5.7) | 5 956 (5.8) |
| Very preterm birth (23–31 wk) | 5 887 (0.8) | 2 648 (0.8) | 330 (0.6) | 643 (1.5) | 194 (0.6) | 239 (0.9) | 516 (0.7) | 726 (0.7) |
| Birth weight, g | ||||||||
| Median (IQR) | 3 452 (3 122–3 785) | 3 311 (3 004–3 627) | 3 460 (3 144–3 778) | 3 320 (3 000–3 653) | 3 380 (3 080–3 682) | 3 336 (3 015–3 660) | 3 275 (2 992–3 570) | 3 235 (2 934–3 544) |
| Mean ± SD | ||||||||
| Preterm infants | 2 468 ± 693 | 2 346 ± 702 | 2 447 ± 705 | 2 210 ± 797 | 2 425 ± 689 | 2 345 ± 718 | 2 396 ± 651 | 2 317 ± 668 |
| Term infants | 3 504 ± 480 | 3 361 ± 457 | 3 500 ± 462 | 3 381 ± 474 | 3 419 ± 447 | 3 382 ± 462 | 3 325 ± 431 | 3 284 ± 449 |
Note: IQR = interquartile range, SD = standard deviation.