State-Specific Assisted Reproductive Technology Surveillance, United States: 2019 Data Brief

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TABLE 4. Number, percentage, and proportion of multiple births, twins, and triplets and higher-order infants born with use of assisted reproductive technology procedures in 2019, by female patient's reporting area of residence at time of treatment — United States and Puerto Rico
TABLE 4. Number, percentage, and proportion of multiple births, twins, and triplets and higher-order infants born with use of assisted reproductive technology procedures in 2019, by female patient’s reporting area of residence at time of treatment — United States and Puerto Rico
Patient’s reporting area of residence* Multiple-birth infants among ART infants†§ Multiple births among all infants¶ Proportion of ART multiple births among all multiple births Twin infants among ART infants†§ Twin infants among all infants¶ Proportion of ART twin infants among all twin infants Triplets and higher-order infants among ART infants†§ Triplets and higher-order infants among all infants¶ Proportion of ART triplets and higher-order infants among all triplets and higher-order infants
No. % No. % (%) No. % No. % (%) No. % No. % (%)
Alabama 70 16.1 2,042 3.5 3.4 70 16.1 1,997 3.4 3.5 0 0.0 45 0.1 0.0
Alaska 18 20.7 284 2.9 6.3 18 20.7 272 2.8 6.6 0 0.0 12 0.1 ††
Arizona 340 25.0 2,349 3.0 14.5 328 24.1 2,298 2.9 14.3 12 0.9 51 0.1 23.5
Arkansas 62 27.9 1,214 3.3 5.1 62 27.9 1,196 3.3 5.2 0 0.0 18 0.1 ††
California 1,848 17.1 14,011 3.1 13.2 1,800 16.6 13,697 3.1 13.1 48 0.4 314 0.1 15.3
Colorado 252 18.0 2,081 3.3 12.1 ** ** 2,054 3.3 ** ** ** 27 0.1 **
Connecticut 259 17.4 1,224 3.6 21.2 250 16.8 1,202 3.5 20.8 9 0.6 22 0.1 40.9
Delaware 24 8.6 346 3.3 6.9 24 8.6 ** ** ** 0 0.0 ** ** **††
District of Columbia 47 10.3 277 3.1 17.0 ** ** 259 2.9 ** ** ** 18 0.2 **††
Florida 582 17.2 6,869 3.1 8.5 558 16.5 6,677 3.0 8.4 24 0.7 192 0.1 12.5
Georgia 334 17.4 4,501 3.6 7.4 312 16.2 4,361 3.5 7.2 22 1.1 140 0.1 15.7
Hawaii 131 27.2 504 3.0 26.0 ** ** 487 2.9 ** ** ** 17 0.1 **††
Idaho 68 22.3 718 3.3 9.5 ** ** 697 3.2 ** ** ** 21 0.1 **
Illinois 723 15.7 4,888 3.5 14.8 704 15.3 4,744 3.4 14.8 19 0.4 144 0.1 13.2
Indiana 250 26.8 2,626 3.2 9.5 244 26.1 2,549 3.2 9.6 6 0.6 77 0.1 7.8
Iowa 120 16.9 1,228 3.3 9.8 ** ** 1,210 3.2 ** ** ** 18 0.0 **††
Kansas 65 14.8 1,101 3.1 5.9 ** ** 1,067 3.0 ** ** ** 34 0.1 **
Kentucky 137 26.9 1,727 3.3 7.9 128 25.1 1,670 3.1 7.7 9 1.8 57 0.1 15.8
Louisiana 86 14.7 1,946 3.3 4.4 86 14.7 1,889 3.2 4.6 0 0.0 57 0.1 0.0
Maine 42 19.2 428 3.6 9.8 42 19.2 ** ** ** 0 0.0 ** ** **††
Maryland 224 10.4 2,345 3.3 9.6 218 10.1 2,283 3.3 9.5 6 0.3 62 0.1 9.7
Massachusetts 469 12.3 2,418 3.5 19.4 463 12.2 2,350 3.4 19.7 6 0.2 68 0.1 8.8
Michigan 532 26.7 4,048 3.8 13.1 512 25.7 3,949 3.7 13.0 20 1.0 99 0.1 20.2
Minnesota 299 19.7 2,174 3.3 13.8 287 18.9 2,092 3.2 13.7 12 0.8 82 0.1 14.6
Mississippi 44 15.1 1,346 3.7 3.3 44 15.1 1,319 3.6 3.3 0 0.0 27 0.1 0.0
Missouri 253 23.6 2,516 3.5 10.1 ** ** 2,474 3.4 ** ** ** 42 0.1 **
Montana 14 10.2 328 3.0 4.3 14 10.2 ** ** ** 0 0.0 ** ** **††
Nebraska 116 29.0 926 3.7 12.5 116 29.0 897 3.6 12.9 0 0.0 29 0.1 0.0
Nevada 145 24.5 1,069 3.0 13.6 ** ** 1,045 3.0 ** ** ** 24 0.1 **
New Hampshire 61 17.9 367 3.1 16.6 ** ** ** ** ** ** ** ** ** **††
New Jersey 457 10.4 3,318 3.3 13.8 439 10.0 3,201 3.2 13.7 18 0.4 117 0.1 15.4
New Mexico 44 21.5 647 2.8 6.8 44 21.5 631 2.7 7.0 0 0.0 16 0.1 ††
New York 1,060 13.6 7,375 3.3 14.4 1,051 13.5 7,196 3.2 14.6 9 0.1 179 0.1 5.0
North Carolina 288 15.8 3,841 3.2 7.5 282 15.4 3,752 3.2 7.5 6 0.3 89 0.1 6.7
North Dakota 56 37.3 386 3.7 14.5 50 33.3 367 3.5 13.6 6 4.0 19 0.2 ††
Ohio 324 16.2 4,723 3.5 6.9 312 15.6 4,538 3.4 6.9 12 0.6 185 0.1 6.5
Oklahoma 128 28.9 1,543 3.1 8.3 ** ** 1,507 3.1 ** ** ** 36 0.1 **
Oregon 213 25.7 1,416 3.4 15.0 198 23.9 1,372 3.3 14.4 15 1.8 44 0.1 34.1
Pennsylvania 301 11.5 4,485 3.3 6.7 292 11.2 4,363 3.3 6.7 9 0.3 122 0.1 7.4
Puerto Rico 33 35.1 442 2.2 7.5 ** ** 430 2.1 ** ** ** 12 0.1 **††
Rhode Island 46 15.2 327 3.2 14.1 46 15.2 ** ** ** 0 0.0 ** ** ** ††
South Carolina 144 17.7 1,948 3.4 7.4 134 16.5 1,892 3.3 7.1 10 1.2 56 0.1 17.9
South Dakota 54 35.5 436 3.8 12.4 54 35.5 ** ** ** 0 0.0 ** ** **††
Tennessee 142 16.8 2,645 3.3 5.4 136 16.1 2,581 3.2 5.3 6 0.7 64 0.1 9.4
Texas 1,213 18.3 11,836 3.1 10.2 1,169 17.6 11,495 3.0 10.2 44 0.7 341 0.1 12.9
Utah 209 20.9 1,667 3.6 12.5 ** ** 1,604 3.4 ** ** ** 63 0.1 **
Vermont 26 16.4 201 3.7 12.9 26 16.4 ** ** ** 0 0.0 ** ** **††
Virginia 361 15.3 3,427 3.5 10.5 355 15.1 3,357 3.4 10.6 6 0.3 70 0.1 8.6
Washington 238 13.1 2,477 2.9 9.6 232 12.7 2,424 2.9 9.6 6 0.3 53 0.1 11.3
West Virginia 46 26.7 633 3.5 7.3 40 23.3 612 3.4 6.5 6 3.5 21 0.1 28.6
Wisconsin 176 18.4 2,119 3.3 8.3 164 17.2 2,059 3.3 8.0 12 1.3 60 0.1 20.0
Wyoming 19 23.5 226 3.4 8.4 ** ** 208 3.2 ** ** ** 18 0.3 **††
Total 13,193 16.8 124,019 3.3 10.6 12,798 16.3 120,721 3.2 10.6 395 0.5 3,298 0.1 12.0
ART = assisted reproductive technology; triplets+ = triplets and higher order infants
*In cases of missing patient's residence data (0.4%), it was assigned as the location where the ART procedure was performed.
†ART totals include infants conceived from ART procedures performed in 2018 and born in 2019 and infants conceived from ART procedures performed in 2019 and born in 2019. Total ART births exclude births to non-U.S. residents.
§Includes only the number of infants live born in a multiple-birth delivery. For example, if three infants were born in a live-birth delivery and one of the three infants was stillborn, the total number of live-born infants would be two. However, the two infants still would be counted as triplets.
U.S. births exclude births to non-U.S. 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.
**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.
††Estimates on the basis of N <20 in the denominator have been suppressed because such rates are considered unstable.
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