2020 Adult Asthma Data: Prevalence Tables and Maps

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Table L6
Adulta Lifetimeb Asthma Prevalence
and Number by Education and State or Territory: BRFSS 2020
State Education Sample
Sizec		 Prevalence
(Percent)		 Standard
Error		 95% CId
(Percent)		 ||
||		 Weighted
Numbere		 95% CId
(Weighted Number)
U.S. Totalf HS Nongrad 25,408 13.8 0.43 (13.0–14.7) || 4,371,908 (4,093,688–4,650,127)
U.S. Totalf HS Grad 104,838 13.2 0.24 (12.8–13.7) || 9,372,815 (9,022,845–9,722,785)
U.S. Totalf Some Coll 109,276 15.7 0.27 (15.2–16.3) || 12,340,090 (11,883,424–12,796,756)
U.S. Totalf Coll Grad 152,176 12.6 0.18 (12.2–12.9) || 9,357,234 (9,078,785–9,635,683)
AL HS Nongrad 475 17.0 2.16 (12.7–21.2) || 91,935 (66,911–116,959)
AL HS Grad 1,527 13.9 1.13 (11.7–16.1) || 166,608 (138,374–194,842)
AL Some Coll 1,508 16.0 1.20 (13.6–18.3) || 193,216 (162,497–223,935)
AL Coll Grad 1,809 12.3 0.96 (10.5–14.2) || 107,772 (90,575–124,968)
AK HS Nongrad 189 16.1 4.15 (8.0–24.3) || 7,325 (3,204–11,446)
AK HS Grad 1,085 13.4 1.95 (9.6–17.2) || 21,349 (14,722–27,976)
AK Some Coll 1,085 13.4 1.56 (10.4–16.5) || 26,069 (19,828–32,311)
AK Coll Grad 1,281 14.7 1.60 (11.5–17.8) || 21,080 (16,255–25,904)
AZ HS Nongrad 787 15.0 1.76 (11.5–18.4) || 116,337 (87,116–145,559)
AZ HS Grad 2,457 12.3 0.87 (10.6–14.1) || 178,122 (152,375–203,868)
AZ Some Coll 3,160 16.1 0.91 (14.4–17.9) || 320,377 (282,419–358,334)
AZ Coll Grad 3,790 14.3 0.77 (12.8–15.8) || 214,262 (190,440–238,084)
AR HS Nongrad 468 17.6 2.48 (12.7–22.4) || 55,881 (38,852–72,910)
AR HS Grad 1,700 10.7 1.05 (8.6–12.8) || 84,984 (67,915–102,053)
AR Some Coll 1,417 13.2 1.28 (10.7–15.7) || 94,864 (75,714–114,014)
AR Coll Grad 1,614 11.5 1.07 (9.4–13.6) || 55,030 (44,477–65,583)
CA HS Nongrad 500 11.0 1.75 (7.6–14.5) || 549,177 (367,758–730,596)
CA HS Grad 811 11.8 1.49 (8.9–14.7) || 792,639 (583,067–1,002,211)
CA Some Coll 1,223 20.5 1.58 (17.5–23.6) || 1,954,552 (1,630,139–2,278,965)
CA Coll Grad 2,230 14.5 0.96 (12.6–16.3) || 1,348,227 (1,166,969–1,529,485)
CO HS Nongrad 622 10.3 1.38 (7.6–13.0) || 40,932 (29,583–52,280)
CO HS Grad 2,105 13.7 0.90 (11.9–15.5) || 141,841 (122,401–161,281)
CO Some Coll 2,623 15.3 0.83 (13.7–17.0) || 216,773 (192,026–241,520)
CO Coll Grad 4,756 14.0 0.58 (12.9–15.2) || 238,501 (218,315–258,687)
CT HS Nongrad 547 16.1 2.09 (12.0–20.2) || 45,055 (32,935–57,176)
CT HS Grad 2,158 15.6 1.20 (13.2–17.9) || 120,695 (100,904–140,486)
CT Some Coll 2,157 14.4 1.24 (12.0–16.9) || 109,283 (89,360–129,205)
CT Coll Grad 4,033 15.4 0.89 (13.6–17.1) || 154,060 (135,206–172,914)
DE HS Nongrad 455 13.6 2.47 (8.7–18.4) || 11,260 (6,945–15,574)
DE HS Grad 1,155 15.4 1.61 (12.2–18.5) || 37,739 (29,278–46,200)
DE Some Coll 1,014 17.0 1.74 (13.6–20.4) || 37,684 (29,346–46,023)
DE Coll Grad 1,380 11.4 1.08 (9.2–13.5) || 25,826 (20,840–30,811)
DC HS Nongrad 143 17.6 3.63 (10.4–24.8) || 9,241 (5,176–13,306)
DC HS Grad 484 19.8 2.44 (15.0–24.6) || 19,772 (14,454–25,090)
DC Some Coll 508 18.0 2.59 (12.9–23.1) || 19,198 (13,092–25,304)
DC Coll Grad 2,270 13.8 0.92 (12.0–15.6) || 43,890 (37,891–49,889)
FL HS Nongrad 1,161 10.6 1.65 (7.4–13.9) || 229,999 (158,555–301,443)
FL HS Grad 3,240 10.7 0.98 (8.8–12.6) || 542,405 (444,165–640,645)
FL Some Coll 3,433 14.1 1.19 (11.8–16.4) || 768,016 (632,176–903,856)
FL Coll Grad 3,882 10.7 0.93 (8.9–12.5) || 514,062 (423,637–604,487)
GA HS Nongrad 915 13.5 1.89 (9.8–17.2) || 150,566 (106,205–194,927)
GA HS Grad 2,532 12.4 1.07 (10.3–14.5) || 290,563 (238,786–342,340)
GA Some Coll 2,442 16.0 1.28 (13.5–18.5) || 390,683 (324,407–456,960)
GA Coll Grad 3,117 11.1 0.90 (9.3–12.9) || 254,309 (212,301–296,317)
HI HS Nongrad 219 19.1 3.22 (12.8–25.5) || 17,434 (11,103–23,764)
HI HS Grad 1,989 14.8 1.02 (12.8–16.8) || 47,352 (40,553–54,151)
HI Some Coll 2,273 14.7 0.95 (12.8–16.6) || 53,370 (46,221–60,519)
HI Coll Grad 3,248 12.7 0.75 (11.3–14.2) || 42,371 (37,271–47,471)
ID HS Nongrad 374 10.5 2.04 (6.5–14.5) || 13,890 (8,355–19,426)
ID HS Grad 1,611 13.3 1.21 (10.9–15.7) || 51,770 (41,965–61,575)
ID Some Coll 2,048 13.5 1.12 (11.4–15.7) || 68,298 (56,558–80,038)
ID Coll Grad 1,899 12.8 1.11 (10.6–15.0) || 42,932 (35,261–50,603)
IL HS Nongrad 143 12.4 3.19 (6.1–18.7) || 136,786 (64,056–209,516)
IL HS Grad 910 11.9 1.30 (9.3–14.4) || 309,125 (239,394–378,855)
IL Some Coll 955 12.3 1.26 (9.8–14.8) || 365,464 (288,123–442,806)
IL Coll Grad 1,653 12.4 0.98 (10.5–14.4) || 382,712 (320,820–444,604)
IN HS Nongrad 609 16.2 1.64 (12.9–19.4) || 99,885 (78,530–121,240)
IN HS Grad 2,751 13.6 0.81 (12.0–15.2) || 235,967 (206,643–265,290)
IN Some Coll 2,220 15.0 0.91 (13.2–16.8) || 237,259 (207,108–267,409)
IN Coll Grad 2,844 12.2 0.72 (10.8–13.6) || 152,640 (134,332–170,949)
IA HS Nongrad 499 12.2 1.74 (8.7–15.6) || 24,845 (17,416–32,274)
IA HS Grad 2,969 11.5 0.71 (10.1–12.9) || 85,150 (74,316–95,984)
IA Some Coll 2,938 12.9 0.75 (11.5–14.4) || 109,184 (96,097–122,272)
IA Coll Grad 3,180 11.0 0.64 (9.7–12.3) || 69,843 (61,564–78,121)
KS HS Nongrad 395 18.4 2.32 (13.8–22.9) || 39,512 (28,698–50,327)
KS HS Grad 2,718 13.1 0.85 (11.5–14.8) || 77,328 (66,880–87,776)
KS Some Coll 3,181 15.9 0.82 (14.3–17.5) || 118,178 (105,224–131,131)
KS Coll Grad 4,154 11.8 0.61 (10.6–13.0) || 77,374 (69,176–85,573)
KY HS Nongrad 358 18.7 2.68 (13.4–23.9) || 89,515 (61,532–117,498)
KY HS Grad 1,187 18.0 1.42 (15.2–20.8) || 208,180 (172,912–243,449)
KY Some Coll 1,113 15.3 1.23 (12.9–17.7) || 161,906 (135,195–188,617)
KY Coll Grad 1,250 12.9 1.21 (10.5–15.2) || 98,428 (79,239–117,617)
LA HS Nongrad 386 14.8 2.13 (10.6–19.0) || 79,155 (55,585–102,725)
LA HS Grad 1,404 13.5 1.15 (11.3–15.8) || 163,241 (134,380–192,103)
LA Some Coll 1,203 15.8 1.44 (13.0–18.7) || 160,825 (129,715–191,935)
LA Coll Grad 1,721 12.0 1.04 (10.0–14.1) || 92,562 (75,843–109,282)
ME HS Nongrad 413 18.5 2.99 (12.6–24.4) || 15,468 (10,047–20,889)
ME HS Grad 2,980 15.1 1.05 (13.0–17.2) || 52,437 (44,734–60,140)
ME Some Coll 3,091 14.4 0.92 (12.6–16.2) || 48,296 (41,935–54,656)
ME Coll Grad 4,413 13.6 0.83 (11.9–15.2) || 43,763 (38,198–49,328)
MD HS Nongrad 859 13.9 1.59 (10.8–17.0) || 67,369 (51,202–83,537)
MD HS Grad 3,746 13.6 0.84 (11.9–15.2) || 163,366 (142,190–184,542)
MD Some Coll 3,230 14.0 0.88 (12.3–15.7) || 179,999 (156,284–203,714)
MD Coll Grad 6,311 11.7 0.54 (10.6–12.7) || 200,670 (181,694–219,645)
MA HS Nongrad 286 17.8 2.67 (12.5–23.0) || 95,681 (64,889–126,472)
MA HS Grad 1,361 15.1 1.28 (12.6–17.7) || 206,955 (169,750–244,160)
MA Some Coll 1,751 17.0 1.12 (14.8–19.2) || 239,897 (206,881–272,913)
MA Coll Grad 3,691 14.5 0.79 (12.9–16.0) || 315,161 (279,425–350,896)
MI HS Nongrad 282 20.1 2.92 (14.3–25.8) || 151,563 (103,115–200,011)
MI HS Grad 1,751 16.0 1.12 (13.8–18.2) || 366,308 (311,784–420,831)
MI Some Coll 2,158 15.0 0.90 (13.2–16.7) || 400,931 (350,771–451,090)
MI Coll Grad 3,026 13.9 0.77 (12.4–15.4) || 289,856 (256,873–322,839)
MN HS Nongrad 675 14.1 1.73 (10.7–17.5) || 48,064 (35,551–60,576)
MN HS Grad 3,820 10.8 0.58 (9.6–11.9) || 119,374 (106,113–132,635)
MN Some Coll 4,800 12.9 0.58 (11.8–14.0) || 190,132 (172,581–207,683)
MN Coll Grad 6,456 11.6 0.47 (10.6–12.5) || 166,546 (152,681–180,410)
MS HS Nongrad 766 17.7 1.91 (14.0–21.5) || 62,287 (47,724–76,850)
MS HS Grad 1,996 13.1 0.96 (11.2–15.0) || 89,890 (76,310–103,470)
MS Some Coll 1,791 14.9 1.06 (12.8–17.0) || 115,302 (98,263–132,340)
MS Coll Grad 1,888 12.4 1.03 (10.4–14.4) || 56,168 (46,434–65,903)
MO HS Nongrad 581 15.3 2.14 (11.1–19.5) || 76,587 (53,708–99,465)
MO HS Grad 2,910 12.5 0.83 (10.9–14.2) || 185,438 (160,042–210,833)
MO Some Coll 2,577 15.2 0.92 (13.4–17.0) || 230,490 (201,156–259,824)
MO Coll Grad 3,079 11.6 0.73 (10.2–13.0) || 147,560 (128,615–166,504)
MT HS Nongrad 283 21.6 3.17 (15.3–27.8) || 13,802 (9,204–18,401)
MT HS Grad 1,684 15.0 1.08 (12.9–17.2) || 37,819 (32,073–43,565)
MT Some Coll 1,886 16.0 1.00 (14.0–18.0) || 46,381 (40,292–52,470)
MT Coll Grad 2,432 12.5 0.80 (11.0–14.1) || 30,299 (26,331–34,268)
NE HS Nongrad 897 9.9 1.54 (6.9–12.9) || 13,287 (9,003–17,570)
NE HS Grad 4,460 9.7 0.70 (8.3–11.0) || 37,464 (31,889–43,038)
NE Some Coll 4,510 11.7 0.73 (10.3–13.2) || 60,409 (52,723–68,095)
NE Coll Grad 4,865 10.9 0.66 (9.6–12.2) || 46,453 (40,685–52,221)
NV HS Nongrad 178 11.0 2.77 (5.5–16.4) || 37,234 (17,883–56,586)
NV HS Grad 654 13.3 1.74 (9.9–16.7) || 96,003 (70,052–121,954)
NV Some Coll 787 13.4 1.53 (10.4–16.4) || 109,937 (84,571–135,304)
NV Coll Grad 843 14.1 1.61 (11.0–17.3) || 77,058 (59,112–95,003)
NH HS Nongrad 244 22.0 3.46 (15.2–28.8) || 17,836 (11,654–24,017)
NH HS Grad 1,615 15.0 1.23 (12.6–17.4) || 46,442 (38,453–54,431)
NH Some Coll 1,731 17.4 1.21 (15.0–19.8) || 58,328 (49,883–66,773)
NH Coll Grad 2,796 12.7 0.84 (11.1–14.4) || 48,130 (41,581–54,679)
NJ HS Nongrad 632 16.0 1.78 (12.5–19.4) || 116,798 (89,042–144,554)
NJ HS Grad 2,523 12.0 0.83 (10.4–13.6) || 229,249 (196,387–262,111)
NJ Some Coll 2,660 13.5 0.82 (11.9–15.1) || 233,570 (203,951–263,189)
NJ Coll Grad 5,418 11.4 0.54 (10.3–12.4) || 285,206 (257,615–312,797)
NM HS Nongrad 672 15.1 2.14 (10.9–19.3) || 37,088 (25,888–48,287)
NM HS Grad 1,953 10.8 1.10 (8.6–12.9) || 47,984 (37,975–57,992)
NM Some Coll 1,934 15.3 1.31 (12.8–17.9) || 81,706 (67,130–96,283)
NM Coll Grad 2,414 16.1 1.24 (13.7–18.6) || 63,230 (52,996–73,464)
NY HS Nongrad 1,013 13.6 1.33 (11.0–16.2) || 273,660 (217,583–329,737)
NY HS Grad 3,452 14.5 0.88 (12.8–16.2) || 580,398 (505,638–655,158)
NY Some Coll 3,525 15.9 0.86 (14.2–17.6) || 644,135 (571,387–716,883)
NY Coll Grad 6,600 11.4 0.49 (10.5–12.4) || 587,886 (536,820–638,953)
NC HS Nongrad 543 13.3 1.77 (9.8–16.8) || 139,700 (101,187–178,213)
NC HS Grad 1,481 12.2 1.03 (10.2–14.3) || 269,669 (222,951–316,387)
NC Some Coll 1,602 12.5 0.97 (10.6–14.4) || 337,440 (283,317–391,563)
NC Coll Grad 2,175 11.8 0.82 (10.2–13.4) || 275,746 (236,850–314,642)
ND HS Nongrad 192 13.2 3.88 (5.6–20.9) || 6,053 (2,240–9,866)
ND HS Grad 1,166 14.0 1.49 (11.1–17.0) || 21,765 (16,865–26,665)
ND Some Coll 1,437 10.9 1.15 (8.7–13.2) || 24,366 (19,073–29,659)
ND Coll Grad 1,649 10.9 1.03 (8.8–12.9) || 17,070 (13,737–20,403)
OH HS Nongrad 895 20.9 2.05 (16.9–24.9) || 193,854 (151,530–236,178)
OH HS Grad 4,914 12.7 0.70 (11.4–14.1) || 386,322 (342,304–430,340)
OH Some Coll 4,062 15.8 0.82 (14.2–17.4) || 438,377 (390,120–486,633)
OH Coll Grad 4,706 12.7 0.67 (11.4–14.0) || 297,808 (265,235–330,381)
OK HS Nongrad 377 15.1 2.12 (10.9–19.2) || 57,621 (40,532–74,711)
OK HS Grad 1,466 14.4 1.12 (12.2–16.6) || 136,757 (114,449–159,065)
OK Some Coll 1,576 18.3 1.23 (15.9–20.7) || 177,085 (151,644–202,526)
OK Coll Grad 1,578 13.1 1.01 (11.1–15.1) || 90,529 (76,183–104,875)
OR HS Nongrad 291 16.9 2.40 (12.2–21.6) || 56,606 (39,482–73,731)
OR HS Grad 1,232 15.6 1.18 (13.2–17.9) || 124,237 (104,684–143,791)
OR Some Coll 1,762 17.6 1.05 (15.6–19.7) || 210,808 (184,069–237,547)
OR Coll Grad 2,082 13.1 0.81 (11.5–14.7) || 134,942 (117,731–152,153)
PA HS Nongrad 273 18.5 2.83 (12.9–24.1) || 188,741 (127,737–249,745)
PA HS Grad 1,547 14.3 1.15 (12.1–16.6) || 506,970 (422,158–591,783)
PA Some Coll 1,303 16.9 1.40 (14.1–19.6) || 446,480 (366,468–526,493)
PA Coll Grad 2,376 13.7 0.89 (12.0–15.5) || 401,192 (347,416–454,968)
RI HS Nongrad 374 21.3 2.80 (15.8–26.8) || 20,852 (14,741–26,964)
RI HS Grad 1,292 15.5 1.48 (12.6–18.4) || 37,699 (30,042–45,356)
RI Some Coll 1,305 16.1 1.43 (13.3–18.9) || 39,516 (32,228–46,804)
RI Coll Grad 2,366 14.1 1.10 (11.9–16.2) || 37,073 (31,028–43,117)
SC HS Nongrad 326 20.9 2.63 (15.8–26.1) || 109,024 (80,204–137,843)
SC HS Grad 1,089 13.3 1.29 (10.8–15.8) || 162,224 (129,769–194,678)
SC Some Coll 1,107 13.2 1.25 (10.8–15.7) || 172,087 (138,449–205,726)
SC Coll Grad 1,462 12.0 1.16 (9.8–14.3) || 125,902 (100,732–151,071)
SD HS Nongrad 327 12.6 3.20 (6.3–18.9) || 7,797 (3,812–11,781)
SD HS Grad 2,005 9.9 1.40 (7.2–12.7) || 20,152 (14,392–25,912)
SD Some Coll 2,132 9.9 1.33 (7.3–12.5) || 22,555 (16,391–28,719)
SD Coll Grad 2,419 12.8 1.61 (9.6–15.9) || 22,566 (16,607–28,525)
TN HS Nongrad 368 20.8 3.03 (14.9–26.8) || 140,702 (95,867–185,538)
TN HS Grad 1,447 16.6 1.30 (14.0–19.1) || 287,737 (240,419–335,054)
TN Some Coll 1,185 15.1 1.35 (12.4–17.7) || 236,225 (192,177–280,274)
TN Coll Grad 1,588 13.2 1.06 (11.1–15.3) || 174,912 (146,250–203,573)
TX HS Nongrad 1,484 7.8 1.18 (5.5–10.1) || 279,375 (196,169–362,582)
TX HS Grad 2,859 13.1 1.26 (10.6–15.5) || 749,191 (598,489–899,893)
TX Some Coll 2,942 16.0 1.31 (13.4–18.6) || 1,068,361 (883,890–1,252,831)
TX Coll Grad 3,645 10.1 0.88 (8.4–11.8) || 584,448 (481,422–687,474)
UT HS Nongrad 422 16.3 2.19 (12.0–20.6) || 31,996 (22,813–41,180)
UT HS Grad 2,670 14.6 0.84 (12.9–16.2) || 82,291 (72,339–92,242)
UT Some Coll 3,591 18.1 0.81 (16.5–19.7) || 159,225 (144,191–174,259)
UT Coll Grad 4,162 15.4 0.70 (14.0–16.7) || 103,995 (94,114–113,875)
VT HS Nongrad 247 15.8 3.31 (9.2–22.3) || 6,108 (3,312–8,904)
VT HS Grad 1,817 14.3 1.19 (12.0–16.7) || 21,320 (17,644–24,996)
VT Some Coll 1,520 16.7 1.39 (14.0–19.5) || 24,054 (19,894–28,214)
VT Coll Grad 2,908 14.3 1.04 (12.3–16.3) || 24,950 (21,159–28,741)
VA HS Nongrad 645 13.6 1.60 (10.4–16.7) || 96,796 (73,257–120,334)
VA HS Grad 2,364 14.4 1.09 (12.3–16.6) || 242,111 (203,119–281,102)
VA Some Coll 2,398 14.1 0.95 (12.2–15.9) || 272,729 (234,928–310,531)
VA Coll Grad 4,065 12.5 0.72 (11.1–13.9) || 293,320 (259,272–327,367)
WA HS Nongrad 696 15.7 1.72 (12.3–19.0) || 88,138 (67,583–108,692)
WA HS Grad 2,852 14.3 0.83 (12.7–16.0) || 200,443 (176,192–224,695)
WA Some Coll 3,848 16.8 0.77 (15.3–18.4) || 347,115 (313,867–380,362)
WA Coll Grad 5,402 13.5 0.58 (12.3–14.6) || 266,335 (243,200–289,470)
WV HS Nongrad 518 23.7 2.36 (19.0–28.3) || 43,801 (33,895–53,707)
WV HS Grad 2,094 16.1 1.03 (14.1–18.2) || 90,944 (78,669–103,219)
WV Some Coll 1,552 17.0 1.15 (14.7–19.2) || 66,288 (56,770–75,805)
WV Coll Grad 1,681 13.7 1.03 (11.7–15.8) || 37,709 (31,818–43,600)
WI HS Nongrad 190 16.2 3.59 (9.1–23.3) || 61,739 (32,419–91,058)
WI HS Grad 1,505 12.8 1.29 (10.3–15.4) || 181,491 (143,049–219,933)
WI Some Coll 1,472 15.1 1.33 (12.5–17.7) || 225,807 (183,714–267,900)
WI Coll Grad 1,902 12.7 1.02 (10.7–14.7) || 160,230 (133,862–186,599)
WY HS Nongrad 214 22.6 4.04 (14.7–30.6) || 7,552 (4,508–10,595)
WY HS Grad 1,340 13.2 1.37 (10.5–15.9) || 17,538 (13,755–21,321)
WY Some Coll 1,550 16.1 1.39 (13.4–18.8) || 26,860 (21,967–31,753)
WY Coll Grad 1,667 13.3 1.24 (10.9–15.7) || 14,642 (11,809–17,475)
Territories
GU HS Nongrad 126 (.–.) || 2,505 (.–.)
GU HS Grad 726 10.4 1.80 (6.8–13.9) || 3,874 (2,488–5,261)
GU Some Coll 520 8.5 1.62 (5.3–11.6) || 1,912 (1,197–2,627)
GU Coll Grad 803 9.9 1.25 (7.4–12.3) || 2,392 (1,777–3,008)
PR HS Nongrad 581 15.6 2.28 (11.1–20.1) || 100,046 (69,331–130,761)
PR HS Grad 1,184 16.4 1.80 (12.9–19.9) || 123,338 (93,667–153,009)
PR Some Coll 1,247 17.7 1.34 (15.1–20.3) || 80,105 (67,317–92,893)
PR Coll Grad 1,914 16.7 1.12 (14.5–18.9) || 146,975 (125,891–168,059)

Notes: For additional information on methods and variable description, refer to ‘Technical Information’, available at: https://www.cdc.gov/asthma/brfss/2020/brfsstechinfo.html
aAged 18+ years
bLifetime question: Has a doctor, nurse, or other health professional EVER told you that you had asthma?
cUnweighted number of respondents who answered the lifetime asthma question
dCI denotes confidence interval
eWeighted number of the respondents who answered the lifetime asthma question
fU.S. Total includes 50 states plus the District of Columbia and excludes the territories
‘.–./blank’:Suppressed if the normal approximation to the binomial distribution does not apply due to small sample size or relative standard error (RSE)>30%

Asthma and Community Health Branch, National Center for Environmental Health
Centers for Disease Control and Prevention

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