Helicobacter pylori infection in patients with autoimmune thrombocytopenic purpura

Table 1 General characteristics of subjects in the study

Subjects	n	%	Mean age (range)	Sex (F/M)
H pylori-negative controls	8	(34.8)	25 (18-32)	6/2
H pylori-positive controls	15	(65.2)	27 (25-35)	12/3
H pylori-negative patients	12	(31.5)	29 (24-34)	8/4
H pylori-positive patients	26	(68.5)	26 (22-37)	21/5

Table 2 Platelet counts (× 10⁹/L) of AITP patients before and after steroid therapy

Parameters	H pylori-positive patients (n = 26)	H pylori-negative patients (n = 12)
Platelet counts (× 109/L) (mean, range)	15 (10-22)a	29 (21-42)
Response to steroid (number, %)	17 (65) a	10 (83)
Post-treatment platelet counts (× 109/L) (mean, range)	77 (61-112)	140 (124-180)

^aP < 0.05 vs H pylori negative patients.