From: Does advanced maternal age confer a survival advantage to infants born at early gestation?
Gestational age (weeks) | Fetal deaths | Neonatal deaths | Total births | Fetuses-at-risk (FAR) | Fetal death rate per 1000 total births | Fetal death rate per 1000 FAR | Neonatal death rate per 1000 live births | Neonatal death rate per 1000 FAR | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
20-29 years | ≥35 years | 20-29 years | ≥35 years | 20-29 years | ≥35 years | 20-29 years | ≥35 years | 20-29 years | ≥35 years | 20-29 years | ≥35 years | 20-29 years | ≥35 years | 20-29 years | ≥35 years | |
22 | 866 | 249 | 986 | 234 | 2112 | 566 | 5456260 | 1390435 | 410.0 | 439.9 | 0.16 | 0.18 | 791.3 | 738.2 | 0.18 | 0.17 |
23 | 852 | 298 | 1458 | 395 | 3367 | 985 | 5454148 | 1389869 | 253.0 | 302.5 | 0.16 | 0.21 | 579.7 | 575.0 | 0.27 | 0.28 |
24 | 713 | 186 | 1300 | 349 | 4809 | 1273 | 5450781 | 1388884 | 148.3 | 146.1 | 0.13 | 0.13 | 317.4 | 321.1 | 0.24 | 0.25 |
25 | 569 | 160 | 865 | 214 | 5167 | 1473 | 5445972 | 1387611 | 110.1 | 108.6 | 0.10 | 0.12 | 188.1 | 163.0 | 0.16 | 0.15 |
26 | 636 | 175 | 567 | 171 | 5856 | 1689 | 5440805 | 1386138 | 108.6 | 103.6 | 0.12 | 0.13 | 108.6 | 112.9 | 0.10 | 0.12 |
27 | 632 | 191 | 480 | 150 | 6294 | 1868 | 5434949 | 1384449 | 100.4 | 102.2 | 0.12 | 0.14 | 84.8 | 89.4 | 0.09 | 0.11 |
28 | 784 | 236 | 424 | 143 | 7785 | 2378 | 5428655 | 1382581 | 100.7 | 99.2 | 0.14 | 0.17 | 60.6 | 66.8 | 0.08 | 0.10 |
29 | 620 | 184 | 339 | 104 | 8396 | 2627 | 5420870 | 1380203 | 73.8 | 70.0 | 0.11 | 0.13 | 43.6 | 42.6 | 0.06 | 0.08 |
30 | 761 | 244 | 385 | 110 | 11375 | 3509 | 5412474 | 1377576 | 66.9 | 69.5 | 0.14 | 0.18 | 36.3 | 33.7 | 0.07 | 0.08 |
31 | 703 | 253 | 356 | 99 | 13643 | 4289 | 5401099 | 1374067 | 51.5 | 59.0 | 0.13 | 0.18 | 27.5 | 24.5 | 0.07 | 0.07 |
32 | 924 | 282 | 427 | 145 | 20676 | 6437 | 5387456 | 1369778 | 44.7 | 43.8 | 0.17 | 0.21 | 21.6 | 23.6 | 0.08 | 0.11 |
33 | 865 | 291 | 371 | 126 | 28589 | 8880 | 5366780 | 1363341 | 30.3 | 32.8 | 0.16 | 0.21 | 13.4 | 14.7 | 0.07 | 0.09 |
34 | 906 | 334 | 474 | 156 | 51984 | 15437 | 5338191 | 1354461 | 17.4 | 21.6 | 0.17 | 0.25 | 9.3 | 10.3 | 0.09 | 0.12 |
35 | 993 | 363 | 513 | 165 | 93283 | 26198 | 5286207 | 1339024 | 10.6 | 13.9 | 0.19 | 0.27 | 5.6 | 6.4 | 0.10 | 0.12 |
36 | 1132 | 431 | 697 | 243 | 206418 | 56479 | 5192924 | 1312826 | 5.5 | 7.6 | 0.22 | 0.33 | 3.4 | 4.3 | 0.13 | 0.19 |
37 | 1212 | 450 | 805 | 253 | 457804 | 121419 | 4986506 | 1256347 | 2.6 | 3.7 | 0.24 | 0.36 | 1.8 | 2.1 | 0.16 | 0.20 |
38 | 1310 | 476 | 1067 | 307 | 1075784 | 300718 | 4528702 | 1134928 | 1.2 | 1.6 | 0.29 | 0.42 | 1.0 | 1.0 | 0.24 | 0.27 |
39 | 1040 | 348 | 1031 | 263 | 1571669 | 418969 | 3452918 | 834210 | 0.7 | 0.8 | 0.30 | 0.42 | 0.7 | 0.6 | 0.30 | 0.32 |
40 | 812 | 318 | 852 | 188 | 1422949 | 318727 | 1881249 | 415241 | 0.6 | 1.0 | 0.43 | 0.77 | 0.6 | 0.6 | 0.45 | 0.45 |
41 | 250 | 97 | 291 | 65 | 416096 | 87152 | 458300 | 96514 | 0.6 | 1.1 | 0.55 | 1.01 | 0.7 | 0.7 | 0.63 | 0.67 |
42 | 54 | 13 | 49 | 18 | 39988 | 8866 | 42204 | 9362 | 1.4 | 1.5 | 1.28 | 1.39 | 1.2 | 2.0 | 1.16 | 1.92 |
43 | 11 | 4 | 5 | 2 | 2216 | 496 | 2216 | 496 | 5.0 | 8.1 | 4.96 | 8.06 | 2.3 | 4.1 | 2.26 | 4.03 |
Total | 16645 | 5583 | 13742 | 3900 | 5456260 | 1390435 | 5456260 | 1390435 | 3.1 | 4.0 | 3.05 | 4.02 | 2.5 | 2.8 | 2.52 | 2.80 |