“…25 Other clinical factors were analyzed in a few studies. Helicobacter pylori infection, 13,14,22 body mass index, 22,29,36 hyperlipidemia, 24,29,31,34,42 hyperuricemia, 36 pulmonary disease, 34 history of peptic ulcer, 31 hemoglobin level, 22 prothrombin, and activated partial thromboplastin time 22,25 were not found to be associated with PPB. Thrombocytopenia was associated with PPB in 1 study, 43 although 2 studies did not find differences in PPB rates.…”