Table 4.

Clinical characteristics of with auto-Abs to type I IFNs detectable but non neutralizing

	Patients with intermediate titer of antibodies against type I IFNS without neutralizing activity	Patients with high titer of antibodies against type I IFNS without neutralizing activity	Patients with neutralizing auto-Abs against type I IFNs
n	87	11	11
Age, mean ± Standard deviation (SD), years	64.9 ± 16.2	60.5 ± 16.1	68.7 ± 14.9
≥ 65 years old	46 (53%)	5 (45%)	9 (82%)
Men	51 (59%)	6 (55%)	9 (82%)
Death	15 (17%)	2 (18%)	6 (55%)

Data are presented as a number (percentage), unless otherwise noted. A Fisher test was used to analyze the effect of dichotomous variables and a Mann–Whitney test for continuous variables