Symptoms

Spirometry participants (n = 49)

Total subjects (n = 413)

Before

After

p-valuea

Before

After

p-valueb

Tearing

14.3

2.0

0.01

5.6

0

Sore eyes

8.2

4.1

0.41

3.6

1.5

0.04

Red eyes

12.2

2.0

0.06

3.9

1.0

0.01

Runny nose

2.0

0

-

2.2

1.5

0.70

Nose congestion

4.1

0

-

2.7

1.0

0.11

Continuous sneeze

6.1

0

-

2.4

1.2

0.34

Phlegm

8.2

4.1

0.41

6.8

3.4

0.01

Fever

10.2

2.0

0.10

5.3

1.7

<0.01