Skip to main content

Table 4 Prevalence (%) of symptoms and diseases by number of positive SPT reactions

From: Sensitization to airborne allergens among adults and its impact on allergic symptoms: a population survey in northern Vietnam

Symptoms or diseases

Number of positive SPT reactions

0

1

2

≥3

p-value*

(n = 353)

(n = 72)

(n = 50)

(n = 58)

Ever asthma

5.4

12.5

6.0

6.9

0.176

Physician-diagnosed asthma

5.4

6.9

2.0

3.4

0.594

Asthma medicine

2.6

0

4.0

1.7

0.463

Asthma attack

0.9

2.8

4.0

3.4

0.197

Asthma hospitalization

2.0

2.8

2.0

1.7

0.973

Wheezing last 12 months

21.3

31.9

24.0

25.9

0.263

Recurrent wheeze

4.5

9.7

10.0

10.3

0.114

Allergic rhinitis

17.9

29.2

28.0

41.4

<0.001

AR symptoms last 12 months

14.5

25.4

28.0

36.2

<0.001

Intermittent AR

13.0

18.1

22.0

29.3

0.010

Persistent AR

4.0

7.1

6.0

12.1

0.080

Bronchial hyper-reactivity, PC20 ≤ 2 mg/ml

7.1

10.2

11.4

17.1

0.047

  1. * Difference (p-value) in prevalence of symptoms and diseases by number of positive SPT reactions.