title: [Effects of subchorionic hematoma on pregnancy outcome: a meta analysis].
abstract: OBJECTIVE
  To study the effects of subchorionic hematoma (SCH) on pregnancy outcome.
  
  
  METHODS
  We searched publications from January 2000 to July 2015 for cohort and case-control studies evaluating subchorionic hematoma and perinatal outcomes, including spontaneous abortion, premature delivery and delivery mode.
  
  
  RESULTS
  Data of 6 articles analyzed by meta-analysis showed that SCH group had higher rate of spontaneous abortion, while no difference in premature delivery and delivery mode, compared with threatened abortion group.
  
  
  CONCLUSIONS
  Subchorionic hematoma increases the risk of spontaneous abortion, while premature delivery rate and delivery mode are not affected if the pregnant women can continue the pregnancy.
authors.affiliation: Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200090, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Li
authors.forename: Jin
authors.initials: J
authors.lastname: Zhu
authors.forename: Keqin
authors.initials: K
authors.lastname: Hua
mesh_terms: D000022:Abortion, Spontaneous; D000033:Abortion, Threatened; D016022:Case-Control Studies; D005260:Female; D006406:Hematoma; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications; D011256:Pregnancy Outcome; D047928:Premature Birth