State-Specific Assisted Reproductive Technology Surveillance, United States: 2021 Data Brief

TABLE 5. Number, percentage, and proportion of infants born with use of assisted reproductive technology in 2021, by low birth weight category and female patient’s reporting area of residence at time of treatment in 50 US states, the District of Columbia, and Puerto Rico
TABLE 5. Number, percentage, and proportion of infants born with use of assisted reproductive technology in 2021 by low birthweight category and female patient’s reporting area of residence at time of treatment in 50 US states, the District of Columbia, and Puerto Rico
Very low birth weight (<1,500 g) Moderately low birth weight
(1,500–2,499 g)
Low birth weight (<2,500 g)
Patient’s reporting area of residencea ART infantsb All infantsc Prop. of ART infants among all infants ART infantsb All infantsc Prop. of ART infants among all infants ART infantsb All infantsc Prop. of ART infants among all infants
No. % No. % % No. % No. % % No. % No. % %
Alabama 8 2.5 1,061 1.8 0.8 55 17.1 4,992 8.6 1.1 63 19.6 6,053 10.4 1.0
Alaska d d 120 1.3 d d d 527 5.6 d 15 16.7 647 6.9 2.3
Arizona 55 4.4 962 1.2 5.7 186 14.8 5,170 6.6 3.6 241 19.2 6,132 7.9 3.9
Arkansas 11 4.3 618 1.7 1.8 36 14.2 2,804 7.8 1.3 47 18.5 3,422 9.5 1.4
California 240 2.2 4,761 1.1 5.0 1,266 11.8 25,844 6.1 4.9 1,506 14.0 30,605 7.3 4.9
Colorado 44 2.7 654 1.0 6.7 245 14.9 5,285 8.4 4.6 289 17.6 5,939 9.4 4.9
Connecticut 32 2.1 488 1.4 6.6 196 12.7 2,418 6.8 8.1 228 14.8 2,906 8.1 7.8
Delaware 5 2.1 163 1.6 3.1 28 11.6 789 7.5 3.5 33 13.7 952 9.1 3.5
District of Columbia 6 1.2 145 1.7 4.1 57 11.7 684 7.9 8.3 63 13.0 829 9.6 7.6
Florida 103 2.9 3,399 1.6 3.0 420 11.7 16,061 7.4 2.6 523 14.6 19,460 9.0 2.7
Georgia 82 4.1 2,282 1.8 3.6 323 16.0 10,858 8.8 3.0 405 20.1 13,140 10.6 3.1
Hawaii 13 3.9 201 1.3 6.5 66 19.8 1,180 7.6 5.6 79 23.7 1,381 8.8 5.7
Idaho 15 3.9 230 1.0 6.5 76 19.9 1,264 5.6 6.0 91 23.9 1,494 6.7 6.1
Illinois 102 2.2 1,756 1.3 5.8 518 11.3 9,479 7.2 5.5 620 13.5 11,235 8.5 5.5
Indiana 36 3.4 1,039 1.3 3.5 156 14.8 5,665 7.1 2.8 192 18.2 6,704 8.4 2.9
Iowa 19 2.4 425 1.2 4.5 101 12.6 2,094 5.7 4.8 120 15.0 2,519 6.8 4.8
Kansas 14 2.9 414 1.2 3.4 60 12.2 2,153 6.2 2.8 74 15.1 2,567 7.4 2.9
Kentucky 16 2.7 798 1.5 2.0 81 13.7 3,963 7.6 2.0 97 16.4 4,761 9.1 2.0
Louisiana 13 1.9 1,133 2.0 1.1 76 10.9 5,374 9.4 1.4 89 12.8 6,507 11.3 1.4
Maine d d 129 1.1 d d d 746 6.2 d 27 11.5 875 7.3 3.1
Maryland 59 2.6 1,074 1.6 5.5 243 10.7 5,006 7.3 4.9 302 13.3 6,080 8.9 5.0
Massachusetts 76 2.1 759 1.1 10.0 375 10.4 4,389 6.3 8.5 451 12.5 5,148 7.4 8.8
Michigan 66 3.5 1,549 1.5 4.3 342 18.3 8,119 7.7 4.2 408 21.8 9,668 9.2 4.2
Minnesota 59 3.6 754 1.2 7.8 192 11.8 3,911 6.1 4.9 251 15.4 4,665 7.2 5.4
Mississippi 6 2.3 723 2.1 0.8 35 13.5 3,616 10.3 1.0 41 15.8 4,339 12.3 0.9
Missouri 30 2.8 964 1.4 3.1 152 14.4 5,204 7.5 2.9 182 17.3 6,168 8.9 3.0
Montana d d 108 1.0 d d d 745 6.6 d 18 11.0 853 7.6 2.1
Nebraska 13 3.4 310 1.3 4.2 57 15.1 1,570 6.4 3.6 70 18.5 1,880 7.6 3.7
Nevada 35 5.2 486 1.4 7.2 105 15.7 2,769 8.2 3.8 140 21.0 3,255 9.7 4.3
New Hampshire 8 1.8 123 1.0 6.5 51 11.8 755 6.0 6.8 59 13.6 878 7.0 6.7
New Jersey 93 1.9 1,208 1.2 7.7 438 8.8 6,636 6.5 6.6 531 10.6 7,844 7.7 6.8
New Mexico d d 286 1.3 d d d 1,723 8.1 d 26 14.7 2,009 9.4 1.3
New York 172 2.1 2,832 1.3 6.1 925 11.2 14,846 7.0 6.2 1,097 13.3 17,678 8.4 6.2
North Carolina 56 2.7 1,935 1.6 2.9 223 10.7 9,430 7.8 2.4 279 13.4 11,365 9.4 2.5
North Dakota d d 102 1.0 d d d 570 5.6 d 16 12.2 672 6.6 2.4
Ohio 51 2.4 1,901 1.5 2.7 243 11.4 9,390 7.2 2.6 294 13.8 11,291 8.7 2.6
Oklahoma 16 3.6 724 1.5 2.2 60 13.3 3,529 7.3 1.7 76 16.9 4,253 8.8 1.8
Oregon 20 2.2 384 0.9 5.2 122 13.7 2,443 6.0 5.0 142 15.9 2,827 6.9 5.0
Pennsylvania 74 2.4 1,810 1.4 4.1 277 9.0 9,197 6.9 3.0 351 11.4 11,007 8.3 3.2
Puerto Rico d d 283 1.5 d d d 1,747 9.0 d 34 40.5 2,030 10.5 1.7
Rhode Island d d 127 1.2 d d d 701 6.7 d 39 15.6 828 7.9 4.7
South Carolina 26 3.0 1,032 1.8 2.5 80 9.1 4,691 8.2 1.7 106 12.0 5,723 10.0 1.9
South Dakota d d 109 1.0 d d d 701 6.2 d 15 13.4 810 7.1 1.9
Tennessee 33 3.4 1,216 1.5 2.7 111 11.4 6,379 7.8 1.7 144 14.8 7,595 9.3 1.9
Texas 186 2.7 5,373 1.4 3.5 914 13.1 26,924 7.2 3.4 1,100 15.7 32,297 8.6 3.4
Utah 41 3.6 526 1.1 7.8 196 17.0 2,939 6.3 6.7 237 20.6 3,465 7.4 6.8
Vermont 7 4.5 49 0.9 14.3 22 14.2 328 6.1 6.7 29 18.7 377 7.0 7.7
Virginia 57 2.4 1,402 1.5 4.1 232 9.9 6,577 6.9 3.5 289 12.4 7,979 8.3 3.6
Washington 55 2.6 852 1.0 6.5 249 11.7 4,978 5.9 5.0 304 14.3 5,830 6.9 5.2
West Virginia 0 0.0 238 1.4 0.0 30 19.1 1,440 8.4 2.1 30 19.1 1,678 9.8 1.8
Wisconsin 29 2.9 768 1.2 3.8 131 12.9 3,988 6.5 3.3 160 15.8 4,756 7.7 3.4
Wyoming d d 49 0.8 d d d 537 8.6 d 20 21.7 586 9.4 3.4
Total 2,106 2.6 50,834 1.4 4.1 9,937 12.1 263,128 7.1 3.8 12,043 14.7 313,962 8.5 3.8

ART = assisted reproductive technology; Prop. = proportion

layout
a In cases of missing patient’s residence data (1.8%), it was assigned as the location where the ART procedure was performed.
b Includes infants conceived from ART procedures performed in 2020 and born in 2021 and infants conceived from ART procedures performed in 2021 and born in 2021. ART births exclude births to non-US residents and include only infants with gestational age data available.
c US births exclude births to non-US residents. Source: National Center for Health Statistics, Vital statistics data available. Natality public use file and CD-ROM. Hyattsville, MD, National Center for Health Statistics.
d To protect confidentiality, cells with values of 1–4 for ART infants and cells with values of 0–9 for all infants are suppressed. Also suppressed are data that can be used to derive suppressed cell values. These values are included in the totals.