Autoimmune thyroid diseases and Helicobacter pylori: The correlation is present only in Graves's disease

Table 1 Clinical characteristics of the investigated groups

Group	n	Sexfemale/male	Age (yr)(mean ± SD)	Smokersyes/no	Ophthalmopathyyes/no
Control	100	90/10	49.0 ± 4.5	44/56	-
GD	52	48/4	48.8 ± 3.9	21/31	34/18
HT	60	54/6	50.2 ± 9.7	26/34	0/60
ATDs	112	102/10	49.2 ± 6.9	47/65	34/112

No significant statistical differences in sex and age were present among the different groups. ATDs: Autoimmune thyroid diseases; HT: Hashimoto’s thyroiditis; GD: Graves’ disease.

Table 2 The HP- and CagA-positivity in patients in the different study groups

Group	n	HP-	HP+	CagA+	CagA-	Overall CagA+
Control	100	57	43	21	22	21/100
GD total	52	9	43c	36b	7	36c/52
HT total	60	32	281	25b	3	25a/60
ATDs total	112	41	712	61c	10	61c/112

^aP≤ 0.05 vs control,

^bP≤ 0.005,

^cP≤ 0.0001.

¹Not significant;

²Not calculated.