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

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TABLE 6. Number, percentage, and proportion of infants born with use of assisted reproductive technology in 2021, by preterm gestational age and female patient’s reporting area of residence at time of treatment in 50 US states, the District of Columbia, and Puerto Rico
TABLE 6. Number, percentage, and proportion of infants born with use of assisted reproductive technology in 2021, by preterm gestational age 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 preterm birth (< 32 weeks) Early preterm birth (<34 weeks) Late preterm birth (34–36 weeks) Preterm birth (<37 weeks)
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 ART infantsb All infantsc Prop. of ART infants among all infants
No. % No. % % No. % No. % % No. % No. % % No. % No. % %
Alabama 11 3.3 1,193 2.1 0.9 27 8.0 2,071 3.6 1.3 69 20.4 5,538 9.5 1.2 96 28.4 7,609 13.1 1.3
Alaska d d d d d 5 5.5 246 2.6 2.0 17 18.7 703 7.5 2.4 22 24.2 949 10.1 2.3
Arizona 62 4.7 1,120 1.4 5.5 117 8.9 2,041 2.6 5.7 199 15.2 5,754 7.4 3.5 316 24.1 7,795 10.0 4.1
Arkansas 9 3.5 704 2.0 1.3 24 9.4 1,206 3.4 2.0 40 15.6 3,122 8.7 1.3 64 25.0 4,328 12.0 1.5
California 318 2.8 6,125 1.5 5.2 568 5.0 10,009 2.4 5.7 1,416 12.5 28,434 6.8 5.0 1,984 17.5 38,443 9.1 5.2
Colorado 44 2.5 840 1.3 5.2 95 5.4 1,576 2.5 6.0 266 15.0 4,557 7.2 5.8 361 20.4 6,133 9.7 5.9
Connecticut 52 3.3 540 1.5 9.6 101 6.4 965 2.7 10.5 191 12.1 2,459 6.9 7.8 292 18.5 3,424 9.6 8.5
Delaware 7 2.6 173 1.7 4.0 14 5.1 329 3.1 4.3 45 16.4 822 7.8 5.5 59 21.5 1,151 11.0 5.1
District of Columbia d d d d d 19 3.8 273 3.2 7.0 47 9.3 600 6.9 7.8 66 13.1 873 10.1 7.6
Florida 135 3.7 3,785 1.8 3.6 217 5.9 6,596 3.1 3.3 556 15.2 16,918 7.8 3.3 773 21.2 23,514 10.9 3.3
Georgia 117 5.1 2,493 2.0 4.7 230 9.9 4,223 3.4 5.4 384 16.6 10,517 8.5 3.7 614 26.5 14,740 11.9 4.2
Hawaii 14 3.7 234 1.5 6.0 30 8.0 434 2.8 6.9 60 16.0 1,162 7.4 5.2 90 24.0 1,596 10.2 5.6
Idaho 15 3.9 272 1.2 5.5 32 8.4 508 2.3 6.3 92 24.0 1,508 6.7 6.1 124 32.4 2,016 9.0 6.2
Illinois 132 2.8 2,039 1.5 6.5 243 5.1 3,704 2.8 6.6 646 13.6 10,486 7.9 6.2 889 18.7 14,190 10.7 6.3
Indiana 35 3.2 1,206 1.5 2.9 69 6.2 2,217 2.8 3.1 206 18.6 6,462 8.1 3.2 275 24.9 8,679 10.9 3.2
Iowa 22 2.7 491 1.3 4.5 54 6.6 898 2.4 6.0 125 15.2 2,794 7.6 4.5 179 21.8 3,692 10.0 4.8
Kansas 14 2.7 474 1.4 3.0 34 6.6 859 2.5 4.0 69 13.5 2,549 7.3 2.7 103 20.1 3,408 9.8 3.0
Kentucky 23 3.7 937 1.8 2.5 36 5.7 1,730 3.3 2.1 125 19.9 4,517 8.7 2.8 161 25.7 6,247 12.0 2.6
Louisiana 21 3.0 1,244 2.2 1.7 31 4.4 2,108 3.7 1.5 121 17.1 5,654 9.8 2.1 152 21.5 7,762 13.5 2.0
Maine d d d d d 7 2.9 297 2.5 2.4 27 11.2 827 6.9 3.3 34 14.1 1,124 9.4 3.0
Maryland 70 3.0 1,158 1.7 6.0 116 5.0 2,051 3.0 5.7 303 13.2 5,245 7.7 5.8 419 18.2 7,296 10.7 5.7
Massachusetts 93 2.5 836 1.2 11.1 186 5.0 1,584 2.3 11.7 418 11.3 4,592 6.6 9.1 604 16.3 6,176 8.9 9.8
Michigan 93 4.6 1,761 1.7 5.3 158 7.9 3,031 2.9 5.2 397 19.8 8,089 7.7 4.9 555 27.7 11,120 10.6 5.0
Minnesota 66 4.0 913 1.4 7.2 99 6.0 1,606 2.5 6.2 256 15.4 4,589 7.1 5.6 355 21.4 6,195 9.6 5.7
Mississippi d d d d d 19 7.0 1,447 4.1 1.3 53 19.4 3,810 10.8 1.4 72 26.4 5,257 15.0 1.4
Missouri 45 4.0 1,070 1.5 4.2 87 7.7 1,953 2.8 4.5 174 15.4 5,868 8.4 3.0 261 23.1 7,821 11.3 3.3
Montana 5 3.0 143 1.3 3.5 7 4.2 271 2.4 2.6 23 13.9 819 7.3 2.8 30 18.1 1,090 9.7 2.8
Nebraska 28 6.8 390 1.6 7.2 45 11.0 696 2.8 6.5 69 16.9 1,957 8.0 3.5 114 27.9 2,653 10.8 4.3
Nevada 39 5.7 556 1.7 7.0 57 8.3 1,012 3.0 5.6 116 17.0 2,767 8.2 4.2 173 25.3 3,779 11.2 4.6
New Hampshire 14 3.2 138 1.1 10.1 23 5.2 269 2.1 8.6 56 12.7 808 6.4 6.9 79 17.9 1,077 8.5 7.3
New Jersey 105 2.1 1,351 1.3 7.8 202 4.0 2,451 2.4 8.2 522 10.2 6,862 6.8 7.6 724 14.2 9,313 9.2 7.8
New Mexico d d d d d 9 4.6 570 2.7 1.6 31 15.9 1,572 7.3 2.0 40 20.5 2,142 10.0 1.9
New York 219 2.5 3,072 1.5 7.1 429 4.9 5,547 2.6 7.7 1,046 12.1 14,843 7.0 7.0 1,475 17.0 20,390 9.7 7.2
North Carolina 74 3.3 2,182 1.8 3.4 121 5.3 3,656 3.0 3.3 315 13.8 9,376 7.8 3.4 436 19.2 13,032 10.8 3.3
North Dakota 0 0.0 130 1.3 0.0 5 3.6 252 2.5 2.0 25 18.1 714 7.1 3.5 30 21.7 966 9.6 3.1
Ohio 69 3.1 2,248 1.7 3.1 127 5.7 3,856 3.0 3.3 318 14.3 9,881 7.6 3.2 445 20.0 13,737 10.6 3.2
Oklahoma 18 3.8 853 1.8 2.1 23 4.9 1,513 3.1 1.5 118 25.1 4,259 8.8 2.8 141 29.9 5,772 11.9 2.4
Oregon 24 2.7 464 1.1 5.2 44 4.9 871 2.1 5.1 140 15.5 2,762 6.8 5.1 184 20.4 3,633 8.9 5.1
Pennsylvania 94 3.0 1,963 1.5 4.8 153 4.8 3,555 2.7 4.3 394 12.5 9,451 7.1 4.2 547 17.3 13,006 9.8 4.2
Puerto Rico d d d d d 9 10.7 603 3.1 1.5 30 35.7 1,719 8.9 1.7 39 46.4 2,322 12.0 1.7
Rhode Island 10 3.9 145 1.4 6.9 12 4.7 263 2.5 4.6 28 10.9 746 7.1 3.8 40 15.6 1,009 9.6 4.0
South Carolina 33 3.5 1,131 2.0 2.9 58 6.2 1,979 3.5 2.9 123 13.0 4,924 8.6 2.5 181 19.2 6,903 12.1 2.6
South Dakota d d d d d 6 5.2 262 2.3 2.3 19 16.5 935 8.2 2.0 25 21.7 1,197 10.5 2.1
Tennessee 42 4.1 1,365 1.7 3.1 74 7.2 2,496 3.1 3.0 177 17.3 6,722 8.2 2.6 251 24.5 9,218 11.3 2.7
Texas 257 3.5 6,327 1.7 4.1 458 6.3 11,376 3.0 4.0 1,139 15.6 31,142 8.3 3.7 1,597 21.9 42,518 11.4 3.8
Utah 49 4.2 613 1.3 8.0 95 8.1 1,142 2.4 8.3 204 17.4 3,479 7.4 5.9 299 25.5 4,621 9.9 6.5
Vermont 5 3.1 50 0.9 10.0 9 5.7 112 2.1 8.0 17 10.7 320 5.9 5.3 26 16.4 432 8.0 6.0
Virginia 59 2.5 1,485 1.5 4.0 112 4.7 2,608 2.7 4.3 288 12.2 6,872 7.2 4.2 400 16.9 9,480 9.9 4.2
Washington 75 3.5 1,063 1.3 7.1 131 6.0 1,910 2.3 6.9 278 12.8 5,512 6.6 5.0 409 18.8 7,422 8.8 5.5
West Virginia d d d d d 10 5.8 578 3.4 1.7 33 19.1 1,624 9.4 2.0 43 24.9 2,202 12.8 2.0
Wisconsin 45 4.3 902 1.5 5.0 86 8.2 1,638 2.7 5.3 155 14.8 4,535 7.3 3.4 241 23.0 6,173 10.0 3.9
Wyoming d d d d d 8 8.6 159 2.5 5.0 21 22.6 517 8.3 4.1 29 31.2 676 10.8 4.3
Total 2,692 3.1 58,580 1.6 4.6 4,931 5.8 103,607 2.8 4.8 11,987 14.0 282,694 7.7 4.2 16,918 19.7 386,301 10.5 4.4

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.
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