CD4 and bronchiectasis: The profile of T-cell subtypes showed that when data were expressed as percentage or as absolute number of positive cells, CD4 lymphocytes were significantly higher in patients with bronchiectasis than in healthy controls (32.17 ± 16.00 versus 23.40 ± 6.97%, respectively; p = 0.01; and 3.31 ± 2.03 versus 1.88 ± 0.83 × 103 cells/ml, respectively; p = 0.001).