Table 2.

Neutrophil phagocytosis, reactive oxygen species (ROS) generation and surface CD16 expression in 42 PAI patients and 27 healthy, sex- and age-matched controls. For the assessment of CD16 expression, 41 PAI patients and 27 healthy controls were studied. Values are presented as mean ± standard deviation.

	PAI patients	Healthy controls	P
Phagocytic index	257 252 ± 87 162	299 220 ± 98 779	0.07
% Phagocytosing neutrophils	98.0 ± 1.5	98.2 ± 1.2	0.68
Phagocytic activity (MFI)	262 469 ± 88 707	304 941 ± 100 876	0.08
ROS generation (MFI)	57 023 ± 26 463	49 915 ± 19 302	0.23
% CD16+ neutrophils	97.46 ± 1.82	96.63 ± 3.04	0.33
CD16 surface density	58 775 ± 27 559	68 380 ± 31 401	0.20

MFI, median fluorescence intensity. Phagocytic index calculated as (% phagocytosis/100) × phagocytic activity.