2000 Adult Asthma Data: Prevalence Tables and Maps

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Table C7
Adult Self-Reported Current Asthma Prevalence Rate (Percent) and
Prevalence (Number) by Income and State: BRFSS 2000
State Income Sample
Size		 Prevalence
(percent)		 Standard
Error		 Lower
95% CI*		 Upper
95% CI*		 Prevalence
(number)		 Lower
95% CI*		 Upper
95% CI*
US Total < $15,000 18,167 9.9 0.42 9.1 10.8 1,907,610 1,743,386 2,071,835
$15-$24,999 29,721 8.1 0.27 7.5 8.6 2,600,886 2,427,317 2,774,456
$25-$49,999 54,598 7.1 0.19 6.7 7.4 4,277,045 4,040,112 4,513,978
$50-$74,999 25,276 6.3 0.24 5.8 6.7 1,940,043 1,791,492 2,088,594
>=$75,000 24,584 5.9 0.26 5.4 6.4 1,917,378 1,747,107 2,087,648
AL < $15,000 357 7.4 1.43 4.6 10.3 34,130 21,239 47,022
$15-$24,999 390 10.2 1.85 6.5 13.8 58,015 36,221 79,808
$25-$49,999 687 6.1 1.01 4.1 8.1 63,038 42,186 83,890
$50-$74,999 275 3.5 1.06 1.5 5.6 15,564 6,283 24,845
>=$75,000 273 1.5 6,255
AK < $15,000 169 8.5 2.49 3.6 13.5 2,785 1,239 4,331
$15-$24,999 311 10.9 3.58 3.8 17.9 6,461 1,909 11,014
$25-$49,999 646 7.0 1.41 4.2 9.7 9,414 5,570 13,257
$50-$74,999 373 3.5 1.08 1.3 5.6 2,564 985 4,143
>=$75,000 413 5.2 1.25 2.7 7.7 5,217 2,739 7,696
AZ < $15,000 188 17.7 9.83 0.0 37.0 46,307 0 104,972
$15-$24,999 608 7.2 1.65 4.0 10.5 50,472 27,300 73,644
$25-$49,999 848 7.9 1.45 5.0 10.7 86,978 54,843 119,112
$50-$74,999 304 7.0 2.72 1.6 12.4 36,239 7,314 65,164
>=$75,000 223 9.4 3.21 3.1 15.8 33,619 9,945 57,293
AR < $15,000 418 12.6 1.90 8.9 16.4 27,844 19,152 36,535
$15-$24,999 621 5.2 0.99 3.2 7.1 19,618 12,059 27,177
$25-$49,999 979 6.2 0.87 4.5 7.9 41,237 29,618 52,855
$50-$74,999 362 5.4 1.22 3.0 7.8 12,997 7,061 18,933
>=$75,000 292 5.7 1.71 2.3 9.0 11,102 4,268 17,936
CA < $15,000 566 7.9 1.21 5.5 10.3 307,699 212,921 402,478
$15-$24,999 556 7.0 1.05 4.9 9.0 265,336 186,671 344,002
$25-$49,999 965 8.1 1.05 6.1 10.2 494,251 364,279 624,223
$50-$74,999 651 6.4 1.01 4.4 8.4 244,632 167,100 322,164
>=$75,000 882 7.8 1.17 5.5 10.1 393,199 272,743 513,655
CO < $15,000 278 10.0 2.84 4.4 15.6 24,203 10,009 38,397
$15-$24,999 509 6.9 1.58 3.8 10.0 29,752 16,157 43,347
$25-$49,999 1,027 6.6 1.07 4.5 8.7 61,893 41,906 81,879
$50-$74,999 491 6.1 1.27 3.7 8.6 35,595 20,898 50,293
>=$75,000 490 3.6 0.86 1.9 5.3 21,915 11,576 32,253
CT < $15,000 240 10.7 2.13 6.5 14.9 14,878 8,823 20,933
$15-$24,999 429 9.2 1.50 6.3 12.2 25,221 16,843 33,599
$25-$49,999 941 8.2 0.99 6.3 10.1 48,902 36,949 60,854
$50-$74,999 618 7.4 1.23 5.0 9.8 28,699 18,934 38,464
>=$75,000 968 6.9 0.99 5.0 8.8 43,314 30,667 55,961
DE < $15,000 186 5.6 1.94 1.7 9.4 1,502 454 2,549
$15-$24,999 429 9.0 1.91 5.2 12.7 6,743 3,796 9,691
$25-$49,999 830 7.6 1.17 5.4 9.9 12,107 8,394 15,821
$50-$74,999 432 5.1 1.16 2.8 7.4 4,891 2,671 7,111
>=$75,000 452 8.0 1.83 4.4 11.6 9,697 5,131 14,264
DC < $15,000 166 10.4 2.81 4.9 16.0 3,981 1,734 6,228
$15-$24,999 264 10.2 2.31 5.7 14.7 6,337 3,341 9,333
$25-$49,999 487 8.7 1.54 5.7 11.7 9,741 6,225 13,258
$50-$74,999 254 5.4 1.36 2.7 8.1 3,159 1,586 4,732
>=$75,000 324 7.0 1.53 4.0 10.0 5,576 3,101 8,050
FL < $15,000 563 7.7 1.22 5.3 10.1 89,014 60,566 117,463
$15-$24,999 943 6.8 1.01 4.9 8.8 141,585 99,085 184,084
$25-$49,999 1,670 5.9 0.67 4.6 7.2 225,597 173,973 277,221
$50-$74,999 675 3.6 0.73 2.2 5.1 58,405 35,291 81,520
>=$75,000 704 4.0 0.81 2.4 5.6 63,859 37,930 89,788
GA < $15,000 427 12.0 1.96 8.1 15.8 58,637 38,702 78,571
$15-$24,999 660 6.8 1.18 4.5 9.1 60,077 39,065 81,089
$25-$49,999 1,234 5.1 0.67 3.8 6.5 85,172 63,161 107,184
$50-$74,999 612 5.1 1.03 3.1 7.2 48,109 28,858 67,360
>=$75,000 548 5.2 1.47 2.4 8.1 51,060 21,962 80,157
HI < $15,000 753 10.5 1.56 7.5 13.6 9,695 6,749 12,641
$15-$24,999 799 7.6 1.26 5.1 10.0 8,224 5,435 11,013
$25-$49,999 1,834 6.7 0.83 5.1 8.3 18,026 13,503 22,550
$50-$74,999 837 6.3 1.09 4.2 8.5 7,942 5,181 10,703
>=$75,000 795 4.9 0.98 3.0 6.9 6,432 3,858 9,007
ID < $15,000 618 12.1 1.48 9.2 15.0 11,080 8,291 13,870
$15-$24,999 1,018 7.9 0.91 6.1 9.7 13,548 10,394 16,702
$25-$49,999 1,810 6.9 0.73 5.4 8.3 22,885 17,954 27,817
$50-$74,999 693 5.7 0.99 3.8 7.7 7,480 4,889 10,070
>=$75,000 433 6.8 1.39 4.1 9.5 5,902 3,465 8,338
IL < $15,000 148 13.6 3.69 6.3 20.9 97,835 40,445 155,226
$15-$24,999 256 7.1 1.77 3.6 10.6 97,122 48,145 146,098
$25-$49,999 565 7.1 1.11 4.9 9.3 192,728 132,709 252,747
$50-$74,999 304 7.3 1.60 4.2 10.5 107,400 59,970 154,830
>=$75,000 367 4.7 1.14 2.5 7.0 77,984 40,692 115,277
IN < $15,000 264 14.2 2.30 9.7 18.8 46,947 31,244 62,651
$15-$24,999 468 9.3 1.63 6.1 12.5 61,359 39,041 83,677
$25-$49,999 920 8.4 1.07 6.3 10.5 116,181 85,899 146,463
$50-$74,999 508 6.1 1.16 3.8 8.4 50,356 31,031 69,680
>=$75,000 410 6.2 1.52 3.2 9.2 41,115 20,405 61,825
IA < $15,000 354 7.6 1.43 4.8 10.4 13,153 8,192 18,114
$15-$24,999 656 7.0 1.18 4.7 9.3 25,548 16,810 34,285
$25-$49,999 1,286 7.0 0.86 5.3 8.7 53,543 40,167 66,919
$50-$74,999 504 6.3 1.16 4.0 8.6 20,616 12,921 28,311
>=$75,000 406 2.9 0.90 1.1 4.7 7,655 2,879 12,431
KS < $15,000 283 13.1 2.24 8.7 17.5 15,005 9,680 20,331
$15-$24,999 712 9.7 1.39 7.0 12.4 28,921 20,307 37,534
$25-$49,999 1,274 7.6 0.81 6.0 9.2 46,063 36,204 55,923
$50-$74,999 612 8.2 1.25 5.8 10.7 24,911 17,139 32,683
>=$75,000 474 5.7 1.12 3.5 7.9 13,381 8,162 18,600
KY < $15,000 902 14.8 1.56 11.7 17.9 42,445 33,129 51,760
$15-$24,999 1,299 9.2 1.31 6.6 11.7 50,090 35,207 64,972
$25-$49,999 1,729 5.7 0.66 4.4 7.0 48,732 37,608 59,857
$50-$74,999 569 5.1 1.28 2.6 7.6 16,568 8,241 24,895
>=$75,000 386 5.8 1.53 2.8 8.8 14,025 6,506 21,544
LA < $15,000 723 9.8 1.26 7.3 12.2 39,118 28,882 49,353
$15-$24,999 985 5.0 0.81 3.4 6.6 30,460 20,612 40,308
$25-$49,999 1,444 3.7 0.52 2.7 4.7 34,793 25,043 44,544
$50-$74,999 572 4.1 0.88 2.4 5.8 15,258 8,672 21,844
>=$75,000 521 3.3 1.08 1.2 5.4 11,029 3,729 18,328
ME < $15,000 561 12.9 2.30 8.4 17.4 12,449 7,871 17,028
$15-$24,999 855 11.6 2.08 7.5 15.7 20,684 12,963 28,405
$25-$49,999 1,527 7.2 1.08 5.1 9.3 22,334 15,615 29,053
$50-$74,999 639 6.1 1.33 3.5 8.7 8,909 5,040 12,778
>=$75,000 440 11.2 2.47 6.4 16.1 11,217 6,058 16,376
MD < $15,000 268 11.9 2.43 7.1 16.7 24,503 14,321 34,685
$15-$24,999 547 6.6 1.18 4.2 8.9 29,464 18,916 40,013
$25-$49,999 1,263 10.0 1.12 7.8 12.2 102,245 78,738 125,752
$50-$74,999 830 6.2 1.07 4.1 8.3 44,314 28,688 59,939
>=$75,000 1,052 5.0 0.78 3.5 6.6 48,369 33,458 63,280
MA < $15,000 647 10.7 1.38 8.0 13.4 31,628 23,439 39,817
$15-$24,999 1,003 10.6 1.18 8.3 12.9 52,418 40,441 64,395
$25-$49,999 2,058 8.6 0.74 7.1 10.0 100,115 82,591 117,640
$50-$74,999 1,228 7.7 0.88 6.0 9.4 59,428 45,634 73,223
>=$75,000 1,667 7.7 0.79 6.1 9.2 85,241 67,372 103,110
MI < $15,000 201 12.9 3.38 6.2 19.6 68,345 29,859 106,830
$15-$24,999 392 8.8 1.76 5.3 12.3 89,680 52,424 126,936
$25-$49,999 790 5.9 1.06 3.8 8.0 130,293 82,972 177,615
$50-$74,999 429 7.8 1.37 5.1 10.5 98,570 63,409 133,730
>=$75,000 446 6.1 1.16 3.8 8.4 79,898 49,536 110,259
MN < $15,000 177 15.8 3.13 9.6 22.0 26,890 15,613 38,168
$15-$24,999 396 8.8 1.82 5.2 12.4 36,910 21,164 52,657
$25-$49,999 1,027 6.4 0.85 4.8 8.1 81,347 59,774 102,920
$50-$74,999 502 6.0 1.12 3.8 8.2 39,459 24,623 54,296
>=$75,000 446 5.9 1.36 3.3 8.6 34,638 18,466 50,810
MS < $15,000 324 9.7 1.95 5.9 13.6 26,604 15,626 37,582
$15-$24,999 439 7.2 1.38 4.5 9.9 29,587 18,137 41,038
$25-$49,999 657 6.6 1.14 4.4 8.8 38,811 25,217 52,404
$50-$74,999 241 3.1 1.12 0.9 5.3 6,837 1,913 11,761
>=$75,000 187 2.5 4,335
MO < $15,000 771 10.9 1.53 7.9 13.9 63,308 45,008 81,607
$15-$24,999 762 7.4 1.23 5.0 9.8 47,039 31,158 62,919
$25-$49,999 1,292 6.9 1.02 4.9 8.9 86,360 60,611 112,110
$50-$74,999 594 5.9 1.29 3.4 8.4 36,700 20,552 52,847
>=$75,000 382 7.4 1.74 4.0 10.9 36,294 19,062 53,526
MT < $15,000 288 11.1 2.29 6.6 15.7 5,693 3,323 8,064
$15-$24,999 634 8.1 1.37 5.4 10.8 9,335 6,140 12,529
$25-$49,999 900 7.3 1.09 5.2 9.5 15,050 10,556 19,545
$50-$74,999 319 6.3 1.89 2.6 10.0 4,333 1,685 6,981
>=$75,000 200 11.3 3.11 5.2 17.5 5,675 2,402 8,949
NE < $15,000 242 9.4 1.93 5.6 13.2 6,817 3,968 9,665
$15-$24,999 530 7.5 1.71 4.2 10.9 14,528 7,684 21,373
$25-$49,999 1,032 7.8 0.98 5.9 9.7 32,160 23,938 40,381
$50-$74,999 401 3.8 0.96 1.9 5.7 6,733 3,354 10,111
>=$75,000 306 4.9 1.35 2.2 7.5 6,090 2,675 9,505
NV < $15,000 146 9.7 3.65 2.5 16.9 8,909 2,069 15,749
$15-$24,999 305 7.7 1.68 4.4 11.0 15,890 9,083 22,696
$25-$49,999 704 9.2 1.61 6.1 12.4 43,768 28,028 59,508
$50-$74,999 372 9.6 2.26 5.2 14.1 25,493 13,263 37,722
>=$75,000 373 3.5 0.94 1.6 5.3 8,652 4,014 13,289
NH < $15,000 107 12.4 3.44 5.6 19.2 5,508 2,387 8,629
$15-$24,999 252 13.6 2.56 8.5 18.6 16,734 10,172 23,296
$25-$49,999 573 7.0 1.08 4.9 9.1 18,681 12,923 24,440
$50-$74,999 356 9.3 1.71 6.0 12.7 15,409 9,628 21,190
>=$75,000 363 5.0 1.35 2.4 7.7 8,119 3,703 12,535
NJ < $15,000 230 8.5 1.98 4.6 12.4 28,214 14,874 41,554
$15-$24,999 442 9.1 1.57 6.0 12.2 66,936 43,467 90,404
$25-$49,999 920 5.7 0.91 3.9 7.5 86,222 58,431 114,014
$50-$74,999 558 5.6 1.00 3.6 7.5 50,438 32,390 68,486
>=$75,000 947 5.2 0.73 3.7 6.6 76,752 55,263 98,241
NM < $15,000 481 8.0 1.30 5.5 10.6 13,198 8,888 17,507
$15-$24,999 693 6.6 1.04 4.6 8.7 17,505 11,969 23,041
$25-$49,999 1,024 8.3 0.92 6.5 10.1 33,538 26,084 40,992
$50-$74,999 374 4.9 1.17 2.6 7.2 7,244 3,764 10,723
>=$75,000 374 4.2 1.15 1.9 6.4 5,849 2,620 9,078
NY < $15,000 259 6.5 1.71 3.1 9.8 71,302 33,417 109,187
$15-$24,999 491 9.7 1.50 6.8 12.7 200,820 137,404 264,235
$25-$49,999 924 9.0 1.12 6.8 11.2 333,270 248,191 418,349
$50-$74,999 465 7.6 1.25 5.1 10.0 142,997 95,687 190,307
>=$75,000 656 5.8 0.93 3.9 7.6 146,922 99,511 194,334
NC < $15,000 338 11.6 1.98 7.7 15.5 62,892 40,642 85,141
$15-$24,999 557 9.3 1.42 6.5 12.1 96,702 66,580 126,824
$25-$49,999 866 5.5 0.82 3.9 7.1 96,795 68,279 125,311
$50-$74,999 416 5.3 1.15 3.0 7.6 48,179 27,319 69,039
>=$75,000 356 4.9 1.44 2.1 7.8 35,307 14,522 56,091
ND < $15,000 238 11.0 2.49 6.1 15.9 5,276 2,777 7,774
$15-$24,999 333 8.7 1.70 5.3 12.0 6,732 4,058 9,406
$25-$49,999 675 6.9 1.13 4.7 9.1 11,767 7,834 15,701
$50-$74,999 238 4.9 1.41 2.1 7.6 3,096 1,299 4,893
>=$75,000 144 2.7 929
OH < $15,000 275 13.7 3.04 7.7 19.7 69,637 37,121 102,153
$15-$24,999 545 13.4 2.07 9.3 17.5 172,818 117,392 228,243
$25-$49,999 995 7.8 1.30 5.2 10.3 202,542 133,658 271,426
$50-$74,999 515 7.7 1.52 4.7 10.7 109,876 66,052 153,700
>=$75,000 422 4.8 1.34 2.1 7.4 52,566 23,023 82,109
OK < $15,000 373 9.4 1.55 6.4 12.5 21,704 14,545 28,863
$15-$24,999 740 7.2 0.99 5.2 9.1 34,785 25,210 44,359
$25-$49,999 1,134 7.2 0.85 5.6 8.9 56,595 43,187 70,003
$50-$74,999 424 4.1 1.02 2.1 6.1 12,136 6,074 18,198
>=$75,000 256 4.4 1.43 1.6 7.2 7,582 2,662 12,502
OR < $15,000 464 12.3 1.65 9.1 15.6 35,968 26,150 45,786
$15-$24,999 635 7.4 1.09 5.2 9.5 31,285 22,006 40,563
$25-$49,999 1,253 9.2 0.89 7.5 11.0 76,199 61,304 91,095
$50-$74,999 558 7.3 1.14 5.0 9.5 28,833 19,724 37,943
>=$75,000 502 7.2 1.18 4.9 9.5 23,894 16,037 31,751
PA < $15,000 348 10.3 1.94 6.5 14.1 81,901 50,010 113,792
$15-$24,999 593 7.7 1.22 5.3 10.1 119,912 81,503 158,321
$25-$49,999 1,089 5.7 0.72 4.3 7.2 165,629 124,124 207,135
$50-$74,999 548 5.0 0.93 3.1 6.8 72,463 45,285 99,640
>=$75,000 544 6.1 1.10 3.9 8.3 82,857 52,712 113,002
RI < $15,000 331 11.9 1.99 8.0 15.8 7,233 4,756 9,710
$15-$24,999 546 8.6 1.26 6.1 11.1 10,041 7,067 13,016
$25-$49,999 953 7.4 0.91 5.7 9.2 15,397 11,630 19,164
$50-$74,999 529 11.9 1.60 8.8 15.1 13,591 9,796 17,386
>=$75,000 584 7.0 1.14 4.7 9.2 8,647 5,784 11,511
SC < $15,000 337 10.7 1.65 7.4 13.9 28,294 19,551 37,036
$15-$24,999 550 8.2 1.33 5.6 10.9 39,330 26,453 52,207
$25-$49,999 1,098 6.3 0.79 4.8 7.9 60,952 45,799 76,105
$50-$74,999 441 5.2 1.15 2.9 7.5 20,436 11,374 29,499
>=$75,000 411 4.7 1.14 2.5 6.9 17,131 8,802 25,460
SD < $15,000 465 8.4 1.32 5.8 11.0 3,581 2,457 4,705
$15-$24,999 933 7.0 0.92 5.2 8.8 6,583 4,838 8,328
$25-$49,999 1,726 4.5 0.57 3.4 5.7 8,501 6,366 10,636
$50-$74,999 648 6.2 1.12 4.0 8.4 4,556 2,885 6,227
>=$75,000 418 5.2 1.38 2.4 7.9 2,380 1,084 3,676
TN < $15,000 250 11.9 2.17 7.6 16.2 34,329 21,590 47,068
$15-$24,999 518 10.3 1.58 7.2 13.4 70,169 47,726 92,613
$25-$49,999 857 5.3 0.86 3.6 7.0 65,725 44,399 87,051
$50-$74,999 319 4.7 1.23 2.2 7.1 21,488 10,078 32,897
>=$75,000 264 5.2 1.47 2.3 8.1 20,434 8,880 31,988
TX < $15,000 558 7.4 1.15 5.2 9.7 122,636 84,977 160,296
$15-$24,999 909 5.4 0.82 3.8 7.0 148,433 103,471 193,394
$25-$49,999 1,545 7.6 0.76 6.2 9.1 337,595 269,631 405,558
$50-$74,999 685 6.1 0.90 4.3 7.9 118,765 83,399 154,131
>=$75,000 748 5.1 0.88 3.4 6.9 106,350 69,808 142,892
UT < $15,000 222 13.6 2.72 8.3 19.0 10,422 6,125 14,719
$15-$24,999 433 8.5 1.68 5.2 11.8 16,520 9,875 23,166
$25-$49,999 996 7.1 1.02 5.1 9.1 34,219 24,335 44,103
$50-$74,999 496 5.4 1.49 2.5 8.3 14,125 6,209 22,040
>=$75,000 454 5.8 1.45 3.0 8.7 13,451 6,676 20,226
VT < $15,000 332 10.2 1.77 6.7 13.7 3,576 2,370 4,781
$15-$24,999 621 7.3 1.17 5.0 9.6 5,443 3,671 7,215
$25-$49,999 1,169 7.1 0.82 5.5 8.8 10,293 7,919 12,667
$50-$74,999 546 5.8 1.11 3.7 8.0 4,164 2,561 5,766
>=$75,000 474 4.2 0.93 2.4 6.1 2,598 1,464 3,731
VA < $15,000 143 9.4 2.88 3.7 15.1 32,942 11,817 54,066
$15-$24,999 251 9.3 1.95 5.5 13.2 62,880 36,216 89,544
$25-$49,999 563 6.4 1.37 3.7 9.1 96,429 54,623 138,234
$50-$74,999 321 6.5 1.50 3.5 9.4 56,383 29,935 82,832
>=$75,000 461 6.6 1.26 4.2 9.1 75,140 46,400 103,880
WA < $15,000 309 17.3 2.53 12.4 22.3 54,921 37,596 72,246
$15-$24,999 488 9.1 1.35 6.4 11.7 49,400 34,462 64,338
$25-$49,999 1,152 7.0 0.81 5.4 8.6 96,057 73,891 118,223
$50-$74,999 595 8.8 1.26 6.4 11.3 66,959 47,382 86,536
>=$75,000 624 5.5 0.90 3.8 7.3 44,169 29,760 58,578
WV < $15,000 442 13.3 1.80 9.8 16.8 29,908 21,498 38,319
$15-$24,999 510 8.3 1.27 5.8 10.8 24,189 16,689 31,688
$25-$49,999 719 6.4 0.97 4.5 8.3 28,667 19,989 37,344
$50-$74,999 255 6.2 1.70 2.9 9.6 9,610 4,267 14,952
>=$75,000 157 8.2 2.46 3.4 13.1 7,571 2,888 12,254
WI < $15,000 163 8.9 2.26 4.5 13.4 18,561 9,006 28,116
$15-$24,999 457 9.9 1.75 6.5 13.3 67,680 42,716 92,643
$25-$49,999 1,054 7.2 0.85 5.5 8.9 107,987 82,402 133,572
$50-$74,999 435 6.8 1.31 4.3 9.4 42,030 25,739 58,321
>=$75,000 321 7.1 1.90 3.4 10.9 33,504 15,016 51,992
WY < $15,000 274 12.6 2.12 8.4 16.8 4,205 2,753 5,656
$15-$24,999 448 9.0 1.48 6.1 11.9 5,567 3,703 7,430
$25-$49,999 887 7.8 1.00 5.8 9.8 10,219 7,562 12,876
$50-$74,999 353 9.7 1.71 6.3 13.1 5,110 3,246 6,974
>=$75,000 244 6.9 1.71 3.6 10.3 2,481 1,243 3,720
PR < $15,000 2,242 8.9 0.73 7.5 10.4 105,960 88,731 123,189
$15-$24,999 840 7.7 1.16 5.4 10.0 47,978 33,376 62,580
$25-$49,999 446 7.5 1.48 4.6 10.4 28,118 16,878 39,358
$50-$74,999 62 4.0 2,509
>=$75,000 43 2.0 1,011

Notes:
* CI denotes confidence interval.

Footnote 1: If values for the standard error and the 95% confidence intervals are not provided, the normal approximation to the binomial distribution does not apply because of the small sample size.

Footnote 2: When the sample size is less than 50, estimates are not precise and should be interpreted with caution.
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