TABLE 2.

Baseline demographic and clinical features in patients with and without bronchiectasis

	Patients with bronchiectasis	Patients without bronchiectasis	p‐value
Male	19 (27.5)	24 (32.4)	0.65
Age at diagnosis (years; mean ± SD)	61.9 ± 12.2	60 ± 15.5	0.4
Smoker
No	33 (47.8)	28 (59.6)	0.3
Former	36 (52.3)	46 (40.4)	0.3
AACI (mean ± SD)	3.8 ± 2.1	4 ± 2.6	0.69
Serum Ig (mg/dl)
IgG	813 ± 251.7	764.4 ± 205.3	0.21
IgA	179.8 ± 92.4	164 ± 96.2	0.32
IgM	122.7 ± 67.4	104.4 ± 81.6	0.15
IgG1	351.2 ± 126.1	351.5 ± 93.2	0.19
IgG2	265.6 ± 144	253 ± 136.8	0.59
IgG3	51.8 ± 26.6	48.7 ± 26.9	0.48
IgG4	28.4 ± 28.5	24.3 ± 23.1	0.34
Monthly Ig dose (g/kg; mean ± SD)	0.15 ± 0.07	0.13 ± 0.05	0.08
Total infections (mean ± SD)	5.7 ± 3.7	5.8 ± 4	0.8
LRTI (mean ± SD)	4.6 ± 3.7	3.2 ± 3.2	0.01
URTI (mean ± SD)	0.7 ± 3	2.2 ± 3.8	0.005
Hospitalizations (mean ± SD)	0.38 ± 0.77	0.36 ± 0.79	0.93

Abbreviations: ACCI = age‐adjusted Charlson comorbidity index; Ig = immunoglobulins; LRTI = lower respiratory tract infections; URTI = upper respiratory tract infections.

Note: Data presented as mean ± standard deviation (SD) or n (%).