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Table 2 Prevalence of symptoms, disorders and lifestyle and sleep related variables for subjects who participated in all three surveys (%, n = 11,269)

From: Change in the prevalence asthma, rhinitis and respiratory symptom over a 20 year period: associations to year of birth, life style and sleep related symptoms

 

Prevalence %

Change in prevalence % (95% CI)

 

1990–94

1999–2001

2010–2012

1990–2012

p-value

Wheeze

20.4

19.5

18.6

−2.2 (−3.0, −1.5)

< 0.0001

Nocturnal chest tightness

11.1

11.3

10.3

−0.6 (−1.2, 0.1)

0.08

Nocturnal breathlessness

4.7

4.6

5.3

0.4 (−0.1, 0.8)

0.10

Nocturnal dyspnea

11.1

11.3

10.6

−0.7 (−1.2, − 0.01)

0.02

Nocturnal cough

26.6

28.2

26.9

0.2 (−0.6, 1.1)

0.55

Asthma attacks

2.8

3.3

3.5

0.9 (0.5, 1.2)

< 0.0001

Asthma medication

3.6

5.5

7.6

4.1 (3.7, 4.5)

< 0.0001

Asthma

4.5

6.4

8.3

4.0 (3.5, 4.5)

< 0.0001

Allergic rhinitis

19.7

23.1

24.7

5.1 (4.5, 5.8)

< 0.0001

Smoking

37.7

25.7

16.4

−19.6 (−20.2, −18,9)

< 0.0001

Obesity (BMI > 30 kg/m2)

 

7.9

14.9

6.9.5 (6.4, 7.5)

< 0.0001

Snoring

 

17.8

24.2

6.3 (5.6, 7.2)

< 0.0001

Gastroesophageal reflux

 

7.0

7.3

0.2 (−0.4, 0.6)

0.57