### Description

Fetal weights tend to increase with increasing gestational age.

 week gestation fetal weight low mean fetal weight fetal weight high 23 419 468 517 24 589 660 731 25 630 666 702 26 680 712 744 27 670 714 758 28 896 951 1,006 29 996 1,038 1,080 30 1,161 1,219 1,277 31 1,151 1,240 1,329 32 1,463 1,529 1,595 33 1,554 1,603 1,652 34 1,940 2,013 2,086 35 2,167 2,220 2,273 36 2,439 2,489 2,540 37 2,666 2,719 2,772 38 2,906 2,935 2,964 39 3,118 3,140 3,162 40 3,281 3,297 3,313 41 3,295 3,329 3,363 42 3,417 3,463 3,509 43 3,749 3,925 4,101

Initial line approximations:

fetal weight low =

= (3.9592 * ((week gestation)^2)) - (84.6368 * (week gestation)) + 202.2076

fetal weight high =

= (4.365 * ((week gestation)^2)) - 109.8861 * (week gestation) + 686.69

Subsequent line approximations:

 Line fetal weight = low, 23 to 34 weeks (8.733 * ((weeks)^2)) - (374.8 * (weeks)) + 4497 low, 34 to 43 weeks (9.433 * ((weeks)^2)) - (410.6 * (weeks)) + 5050 mean, 23 to 34 weeks (9.083 * ((weeks)^2)) - (392 * (weeks)) + 4773 mean, 34 to 43 weeks (-4.439 * ((weeks)^2)) + (536.1 * (weeks)) - 11069 high 23 to 34 weeks (-8.973 * ((weeks)^2)) + (881.1 * (weeks)) - 17648 high, 34 to 43 weeks (0.091 * ((weeks)^2)) + (191.3 * (weeks)) - 4493