Clinical Study

Prevalence of Bronchiectasis in Asthma according to Oral Steroid Requirement: Influence of Immunoglobulin Levels

Table 1

Spirometric and Ig/IgG subclass plasmatic values in SDA and NSDA patients.

SDANSDA

Forced spirometryFEV1 L (%)
( )

( )
0.01 
0.01
FVC L (%)
( )

( )
Ns
FEV1/FVC % <0.01

Ig (mg/dL) IgA ( ) 0.03
IgM (40–230) ns
IgG (700–1600) <0.001

IgG subclass (mg/dL)IgG1 ( ) 0.01
IgG2 ( ) 0.01
IgG3 ( ) 0.01
IgG4 ( ) ns