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Table 1 Baseline characteristics of the studied population

From: Different risk factor patterns for adult asthma, rhinitis and eczema: results from West Sweden Asthma Study

 

Age (years)

Sex

 

18–39

40–59

60–77

P value1

Men

Women

P value2

Total (95 % CI)

Current asthma

12.3

13.4

9.4

0.216

10.1

13.2

0.122

11.8 (9.9–13.6)

Asthma ever

17.8

16.2

11.8

0.024

14.0

16.2

0.328

15.2 (13.1–17.3)

Current rhinitis

48.8

43.8

36.6

0.001

44.5

41.4

0.314

42.8 (40.0–45.7)

Rhinitis ever

53.7

48.5

39.5

<0.001

50.0

44.4

0.060

47.0 (44.2–50.0)

Current eczema

12.9

17.0

9.7

0.167

11.3

15.4

0.040

13.5 (11.5–15.4)

Eczema ever

49.1

46.8

38.2

0.003

36.5

51.6

<0.001

44.6 (41.8–47.5)

Asthma medication 12 m

11.0

12.5

10.7

0.864

9.8

13.0

0.098

11.5 (9.7–13.4)

Rhinitis medication 12 m

33.7

30.8

19.9

<0.001

27.1

28.9

0.515

28.1 (25.5–30.6)

Allergic sensitization

40.9

31.0

18.6

<0.001

36.0

24.2

<0.001

29.7 (27.0–32.4)

Smoking

Never smoker

70.6

52.1

49.5

<0.0013

58.5

54.5

0.0153

56.4 (53.5–59.2)

Ex-smoker

11.0

29.7

37.6

28.3

26.0

27.1 (24.5–29.6)

Current smoker

18.4

18.2

12.9

13.1

19.5

16.5 (14.4–18.7)

Family history

Asthma

23.8

20.2

15.0

0.004

15.8

22.6

0.004

19.5 (17.2–21.8)

Rhinitis

42.9

35.2

14.0

<0.001

25.3

35.3

<0.001

30.6 (27.9–33.4)

Asthma and rhinitis

16.7

12.6

4.7

<0.001

7.9

14.1

0.002

11.2 (9.4–13.1)

Asthma or rhinitis

49.8

42.1

24.0

<0.001

32.9

43.1

<0.001

38.4 (35.6–41.2)

Body mass index

Underweight (<20)

10.4

3.0

1.0

<0.0013

1.5

7.0

<0.0013

4.4 (3.3–5.6)

Normal (20–25)

54.9

34.7

28.0

33.2

42.4

38.1 (35.4–40.9)

Overweight (25–30)

26.1

45.0

52.4

50.7

34.8

42.2 (39.3–45.0)

Obese (>30)

8.6

17.2

18.6

14.6

15.9

15.3 (13.2–17.3)

Occupational GDF

24.3

24.6

25.3

0.750

36.2

14.9

<0.001

24.7 (22.3–27.2)

Metropolitan domicile

70.6

50.9

52.4

<0.001

54.8

58.6

0.214

57.0 (54.0–60.0)

Raised on a farm

7.7

11.8

19.9

<0.001

13.9

12.8

0.604

13.3 (11.4–15.3)

  1. Prevalence (%) and difference (p value) by sex and age group. Total prevalence with 95 % confidence intervals (95 % CI)
  2. 1Test for trend
  3. 2Fishers exact two sided test
  4. 3Pearson chi2 test for in group difference
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Clinical and Translational Allergy

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