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Table 1 U.S. adult current asthma prevalence and prevalence ratios (PR) by 2000–2009 BRFSS sample characteristics

From: Trends in adult current asthma prevalence and contributing risk factors in the United States by state: 2000–2009

Characteristics

Subpopulation

Sample size

Prevalence*

Unadjusted

Adjusted#

 

Groups

n = 3,043,873

% (95% CI)

PR (95% CI)

PR (95% CI)

2-Year

2000–2001

374,137

7.21 (7.07, 7.35)

Reference

 

Period

2002–2003

486,368

7.60 (7.47, 7.74)

1.04 (1.04, 1.05)

1.04 (1.04, 1.05)

 

2004–2005

629,633

7.99 (7.86, 8.12)

1.09 (1.07, 1.10)

1.09 (1.07, 1.10)

 

2006–2007

748,536

8.23 (8.10, 8.37)

1.13 (1.11, 1.15)

1.13 (1.11, 1.15)

 

2008–2009

805,199

8.52 (8.40, 8.65)

1.18 (1.15, 1.20)

1.18 (1.15, 1.20)

Sex

Male

1,176,599

5.90 (5.82, 5.99)

Reference

 
 

Female

1,867,274

9.83 (9.75, 9.92)

1.67 (1.64, 1.69)

1.69 (1.66, 1.72)

Age,

18 – 24

159,715

9.36 (9.11, 9.62)

Reference

 

in years

25 – 34

388,151

7.65 (7.51, 7.80)

0.82 (0.79, 0.84)

0.79 (0.76, 0.82)

 

35 – 44

537,390

7.44 (7.32, 7.56)

0.79 (0.77, 0.82)

0.74 (0.72, 0.76)

 

45 – 54

623,754

7.98 (7.85, 8.10)

0.85 (0.83, 0.88)

0.75 (0.73, 0.78)

 

55 – 64

560,588

8.43 (8.29, 8.57)

0.90 (0.87, 0.93)

0.75 (0.73, 0.77)

 

≥ 65

774,275

7.28 (7.17, 7.40)

0.78 (0.75, 0.80)

0.63 (0.61, 0.65)

Race and

White (NH)**

2,451,608

8.09 (8.03, 8.16)

Reference

 

Ethnicity

Black (NH)

234,974

9.26 (9.04, 9.49)

1.15 (1.12, 1.17)

0.96 (0.94, 0.99)

 

Hispanic

188,189

5.86 (5.66, 6.06)

0.72 (0.70, 0.75)

0.64 (0.62, 0.67)

 

Others

169,102

8.37 (8.09, 8.66)

1.03 (1.00, 1.07)

1.05 (1.01, 1.08)

Education

< High school

310,985

9.26 (9.06, 9.46)

1.32 (1.28, 1.35)

1.12 (1.09, 1.16)

 

High school

936,827

7.85 (7.74, 7.96)

1.12 (1.10, 1.14)

0.93 (0.91, 0.95)

 

Some college

815,293

8.48 (8.36, 8.60)

1.21 (1.18, 1.23)

1.02 (1.00, 1.04)

 

>Bachelor degree

980,768

7.03 (6.93, 7.12)

Reference

 

Household

< $15, 000

301,442

11.6 (11.4, 11.9)

1.74 (1.69, 1.79)

1.58 (1.53, 1.64)

Income

$15 k## ~ <$25 k

474,354

9.06 (8.90, 9.23)

1.35 (1.32, 1.39)

1.27 (1.24, 1.31)

 

$25 k ~ <$50 k

811,140

7.54 (7.42, 7.65)

1.13 (1.10, 1.15)

1.07 (1.05, 1.10)

 

$50 k ~ <$75 k

449,348

7.05 (6.91, 7.20)

1.05 (1.03, 1.08)

1.01 (0.98, 1.04)

 

≥$75 k

611,531

6.69 (6.57, 6.81)

Reference

 
 

Unknown

396,058

7.99 (7.81, 8.16)

1.19 (1.16, 1.23)

1.15 (1.11, 1.18)

Smoking

Never

1,595,769

7.23 (7.15, 7.31)

Reference

 

Status

Former

853,780

8.41 (8.29, 8.52)

1.16 (1.14, 1.18)

1.24 (1.22, 1.26)

 

Current

594,324

9.21 (9.07, 9.35)

1.27 (1.25, 1.3)

1.26 (1.24, 1.29)

Weight

Underweight

50,089

8.70 (8.22, 9.20)

1.29 (1.22, 1.37)

1.10 (1.04, 1.17)

Status

Healthy weight

1,063,457

6.75 (6.66, 6.85)

Reference

 
 

Overweight

1,064,475

6.91 (6.81, 7.00)

1.02 (1.00, 1.04)

1.18 (1.15, 1.20)

 

Obese

639,896

10.2 (10.0, 10.3)

1.51 (1.48, 1.54)

1.63 (1.60, 1.67)

 

Morbidly obese

96,785

18.2 (17.7, 18.7)

2.69 (2.62, 2.78)

2.60 (2.52, 2.68)

  1. *Weighted prevalence for complex survey design; #Adjusted by logistic regression for all factors listed; CI = Confidence Interval;
  2. **NH = Non-Hispanic; ##k = thousand.