Clinical Study

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

Table 2

Comparison of demographic conditions, spirometric values, and plasmatic values of  Ig and IgG subclass in patients with and without asthma-associated bronchiectasis.

Asthma-associated bronchiectasis
( )
Non-asthma-associated bronchiectasis
( )
value

Baseline conditionsAge <0.05
Time from diagnosis (yr) <0.05

Spirometric valuesFEV1 (L) <0.05
FEV1 % ns
FVC (L) ns
FVC % ns
FEV1/FVC 0.01

Ig (mg/dL)IgA ns
IgM <0.01
IgG ns

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