Table 5 Effect of the sweeping on different clinical and functional parameters

Duration of symptoms (months)

41.4 ± 63.4

6.89 ± 1.4

0.02

FVC

53.6 ± 18.8

60.3 ± 2.31

0.02

Oxygen saturation

95.7 ± 2.2

98.0 ± 0.2

0.01

Interval from initiation of exposure until symptoms (months)

12.6 ± 4.4

16.3 ± 6.4

0.008

Dyspnea grade

 Grade 2

32 (72.7%)

19 (100%)

0.04

 Grade 3

10 (22.7%)

0 (0%)

 Grade 4

2 (4.5%)

0 (0%)