Autoantibodies against MHC class I polypeptide-related sequence A are associated with increased risk of concomitant autoimmune diseases in celiac patients

Table 4 Distribution of anti-MICA autoantibodies in different patient groups included in the study by age at diagnosis

Groups	Anti-MICA	n	Mean	SD	Median	P
All	Negative	810	31.60	23.14	31	-
All	Positive	201	21.03	21.89	12	< 0.01
Healthy controls	Negative	193	22.75	18.390	19	-
Healthy controls	Positive	7	41.86	20.408	54	-
Patients with celiac disease	Negative	224	24.85	22.320	23	-
Patients with celiac disease	Positive	159	17.74	20.309	7	-
Patients with autoimmune disease	Negative	393	39.81	22.88	41	-
	Positive	35	31.86	23.85	26	-

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