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Table 1 Characteristics of analyzed control respondents and respondents with chronic respiratory disease (CRD) in 2017 BRFSS

From: Chronic respiratory disease disparity between American Indian/Alaska Native and white populations, 2011–2018

  With CRD (%) n = 12,192 Control (%) n = 59,747 p value a
Race
 AI/AN 950 (1) 3551 (5) <.01
 White b 11,242 (16) 56,196 (78)
Sex
 Male 4972 (7) 28,614 (40) <.001
 Female b 7220 (10) 31,133 (43)
Age (Years)
 18–24 619 (1) 2879 (4) <.001
 25–34 1023 (1) 5669 (8)
 35–44 b 1112 (2) 6504 (9)
 45–54 1536 (2) 8945 (12)
 55–64 2695 (4) 13,365 (19)
  ≥ 65 5207 (7) 22,385 (31)
Marital status
 Currently married b 6437 (9) 36,708 (51) <.001
 Divorced, widowed, separated 3994 (6) 14,586 (20)
 Never married 1761 (2) 8453 (12)
Education
 Less than high school 856 (1) 2456 (3) <.001
 High school graduate 3494 (5) 15,920 (22)
 Some college/technical 3958 (6) 18,318 (25)
 Four or more years of college b 3884 (5) 23,053 (32)
Income
  < $10 k 650 (1) 1591 (2) <.001
 $10 k - < $15 k 815 (1) 1919 (3)
 $15 k - < $20 k 997 (1) 2864 (4)
 $20 k - < $25 k 1151 (2) 4224 (6)
 $25 k - < $35 k 1253 (2) 5414 (8)
 $35 k - < $50 k 1639 (2) 8155 (11)
 $50 k - < $75 k 1605 (2) 9686 (13)
  ≥ $75 k b 2554 (4) 18,666 (26)
 Unreported income 1528 (2) 7228 (10)
Access-to-care
 Inadequate b 726 (1) 3107 (4) <.01
 Adequate 11,466 (16) 56,640 (79)
Smoking status
 Smoker 2667 (4) 7937 (11) <.001
 Non-smoker b 9525 (13) 51,810 (72)
Obesity status
 Underweight 276 (0) 761 (1) <.001
 Normal b 3283 (5) 18,450 (26)
 Overweight 3992 (6) 22,605 (31)
 Obese 4641 (6) 17,931 (25)
  1. a Comparison of categorical variables between control respondents and respondents with CRD using Rao-Scott χ2 test
  2. b Indicates reference level used in multivariable logistic regression presented in Fig. 2