Selective IgA Deficiency in Autoimmune Diseases

Table 4 Prevalence of IgAD among CD patients.

Year	Reference	Country	Age (years)	Sample size	IgAD (prevalence)	Criteria (g/L)
1992	113	Sweden	20–68	24	4 (1:6)	NM
1997	117	Italy	0–15	688	12 (1:58)	<0.05
1997	114	Ireland	NM	604	14 (1:43)	<0.05
1998	115	Italy	0–15	1,776	46 (1:39)	<0.05
			18–65	322	8 (1:40)	<0.05
2000	116	Turkey	0–16	104	3 (1:35)	NM
2000	223	Spain	NM	47	5 (1:10)	<0.07
Total				3,565	92 (1:39)
2006	124	UK	NM	4,698^a	35 (1:131)	<0.06
2008	118	Canada	NM	608^a	4 (1:152)	<0.05
Present study		Sweden	Children, adults	422,225^a	2,309 (1:192)	<0.07
Total				427,531	2,348 (1:182)

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