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Table 2 Cumulative incidence (%) of asthma and wheeze between ages 12 to 18 years by method of measure.

From: Conventional epidemiology underestimates the incidence of asthma and wheeze-a longitudinal population-based study among teenagers

  

Boys

Girls

 

Condition

Method

(n)

Incidence %

(n)

Incidence %

Difference p-value

Ever asthma

AR

(100)

9.09

(158)

13.57

< 0.001

 

BE

(66)

6.00

(109)

9.36

0.003

Physician-diagnosed

AR

(64)

5.82

(103)

8.85

0.006

asthma

BE

(50)

4.54

(79)

6.79

0.021

Current asthma

AR

(56)

5.09

(91)

7.82

0.008

 

BE

(38)

3.45

(67)

5.76

0.009

Current wheeze

AR

(178)

17.33

(270)

24.82

< 0.001

 

BE

(61)

5.94

(120)

11.03

< 0.001

  1. AR: Incidence based on the annual reports
  2. BE: Incidence based on the baseline and endpoint surveys only