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Table 7 Adjusted OR for asthma onset in the following year after cumulative exposure until specific ages

From: Early life swimming pool exposure and asthma onset in children – a case-control study

 

Low-to intermediate exposure

High exposure

 

OR

(95% CI)

OR

(95% CI)

1y (n = 60)

1.93

(1.01

3.68)

2.38

(1.13

5.00)

2y (n = 21)

2.37

(0.83

6.75)

1.07

(0.23

5.07)

3y (n = 17)

2.68

(0.71

10.13)

4.19

(1.23

14.30)

  1. Analysis at 1 years = the relationship between exposure in the first year of life and asthma onset between 1 and 2 years of age. Analysis at 2 years = the relationship between exposure in the first two years of life and asthma onset between 2 and 3 years of age. Analysis at 3 years = the relationship between exposure in the first three years of life and asthma onset between 3 and 4 years of age