Table 2 Distribution of live births by gestational age (GA) and birth weight (BW) among selected high-income countries, 1995–2005
Gestational age/Birth weight | Canada | USA | Denmark | Finland | Iceland | Norway | Sweden | |
|---|---|---|---|---|---|---|---|---|
Number (%) | Number (%) | Number (%) | Number (%) | Number (%) | Number (%) | Number (%) | ||
GA (weeks) | <22 | 1,494 | 33,691 | 64 | 6 | 0 | 101 | not reported |
(0.07) | (0.08) | (0.01) | (0.001) | (0.00) | (0.02) | |||
22–23 | 1,902 | 58,438 | 174 | 175 | 21 | 272 | 335 | |
(0.08) | (0.13) | (0.02) | (0.03) | (0.05) | (0.04) | (0.03) | ||
24–25 | 2,774 | 90,104 | 637 | 308 | 47 | 666 | 1,056 | |
(0.12) | (0.21) | (0.09) | (0.05) | (0.10) | (0.11) | (0.10) | ||
26–27 | 3,982 | 115,727 | 1,122 | 477 | 61 | 1,050 | 1,633 | |
(0.17) | (0.27) | (0.16) | (0.08) | (0.13) | (0.17) | (0.16) | ||
28–31 | 14,820 | 428,298 | 4,927 | 3,510 | 265 | 4,486 | 6,628 | |
(0.65) | (0.98) | (0.68) | (0.56) | (0.57) | (0.73) | (0.64) | ||
32–36 | 146,954 | 3,825,597 | 39,283 | 28,953 | 2,099 | 35,881 | 55,058 | |
(6.40) | (8.78) | (5.44) | (4.59) | (4.55) | (5.82) | (5.35) | ||
37–41 | 2,093,277 | 37,425,755 | 618,667 | 568,932 | 40,625 | 516,860 | 882,169 | |
(91.1) | (85.9) | (85.7) | (90.2) | (88.1) | (83.8) | (85.8) | ||
≥42 | 32,197 | 1,595,445 | 57,135 | 28,180 | 2,992 | 57,565 | 81,697 | |
(1.40) | (3.66) | (7.91) | (4.47) | (6.49) | (9.33) | (7.94) | ||
Unknown | 5,699 | 432,844 | 6,642 | 5,369 | 199 | 25,258 | 1,273 | |
(0.25) | (0.98) | (0.91) | (0.84) | (0.43) | (3.93) | (0.12) | ||
BW (grams) | <500 | 2,315 | 60,211 | 158 | 166 | 6 | 255 | 185 |
(0.10) | (0.14) | (0.02) | (0.03) | (0.01) | (0.04) | (0.02) | ||
500–749 | 3,790 | 120,794 | 742 | 751 | 60 | 898 | 1,059 | |
(0.16) | (0.27) | (0.10) | (0.12) | (0.13) | (0.14) | (0.10) | ||
750–999 | 4,228 | 128,551 | 1,250 | 920 | 80 | 1,224 | 1,672 | |
(0.18) | (0.29) | (0.17) | (0.14) | (0.17) | (0.19) | (0.16) | ||
1,000–1,499 | 11,584 | 319,100 | 4,015 | 2,745 | 215 | 3,561 | 4,689 | |
(0.50) | (0.73) | (0.56) | (0.43) | (0.46) | (0.56) | (0.46) | ||
1,500–1,999 | 25,331 | 666,492 | 8,240 | 5,590 | 380 | 6,852 | 9,249 | |
(1.10) | (1.52) | (1.14) | (0.88) | (0.82) | (1.07) | (0.90) | ||
≥2000 | 2,250,300 | 42,694,623 | 707,730 | 624,694 | 45,563 | 628,658 | 1,008,332 | |
(97.9) | (97.1) | (98.0) | (98.4) | (98.4) | (98.0) | (98.4) | ||
Unknown | 5,551 | 16,128 | 6,516 | 1,044 | 5 | 691 | 4,663 | |
(0.24) | (0.04) | (0.89) | (0.16) | (0.01) | (0.11) | (0.45) | ||
Total | 2,303,099 (100.0) | 44,005,899 (100.0) | 728,651 (100.0) | 635,910 (100.0) | 46,309 (100.0) | 642,139 (100.0) | 1,029,849 (100.0) | |