title: Helicobacter pylori and thrombocytopenia in the pregnant hispanic population.
abstract: OBJECTIVE
  An association between Helicobacter pylori (H. pylori) and thrombocytopenia has been demonstrated in the literature in a non-pregnant population. The purpose of this study was to determine whether or not there is a similar association in the third trimester of pregnancy in a Hispanic population.
  
  
  METHODS
  This is a secondary analysis of 82 pregnant Hispanic women with and without hyperemesis gravidarum who underwent serologic evaluation for H. pylori IgG. Results of complete blood counts obtained in the third trimester were analysed for thrombocytopenia.
  
  
  RESULTS
  Of the 82 subjects who had H. pylori testing, 54 subjects had both serum H. pylori IgG results and third trimester platelet levels. The prevalence of thrombocytopenia was 11.1% (6/54). Thirty-six subjects were seropositive for H. pylori IgG and 18 subjects were seronegative. Of the 36 subjects who were H. pylori seropositive, four (11.1%) developed thrombocytopenia compared to three of 18 (16.7%) H. pylori seronegative subjects (P = 0.67). There was no difference between the groups in their mean platelet values (205 K/cu mm vs. 212 K/cu mm, P = 0.69).
  
  
  CONCLUSIONS
  In this limited study, we found no association between H. pylori and thrombocytopenia in the pregnant Hispanic population.
authors.affiliation: Department of Obstetrics and Gynecology, University of California, Irvine, Orange, CA 90033, USA.
authors.forename: Aaron
authors.initials: A
authors.lastname: Epstein
authors.forename: Deborah A
authors.initials: DA
authors.lastname: Wing
authors.forename: Joseph G
authors.initials: JG
authors.lastname: Ouzounian
authors.forename: David A
authors.initials: DA
authors.lastname: Miller
authors.forename: Richard H
authors.initials: RH
authors.lastname: Lee
mesh_terms: D000328:Adult; D005260:Female; D016481:Helicobacter Infections / Q000150:complications / Q000453:epidemiology* / Q000208:ethnology; D016480:Helicobacter pylori / Q000302:isolation & purification* / Q000502:physiology; D006630:Hispanic or Latino / Q000706:statistics & numerical data*; D006801:Humans; D006939:Hyperemesis Gravidarum / Q000150:complications / Q000453:epidemiology; D011153:Population; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic / Q000453:epidemiology* / Q000208:ethnology; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology* / Q000208:ethnology; D037841:Pregnant People; D013921:Thrombocytopenia / Q000150:complications / Q000453:epidemiology* / Q000208:ethnology; D055815:Young Adult