title: Factors associated with failed induction of labour in a secondary care hospital.
abstract: OBJECTIVE
  To assess the factors associated with failed induction of labour (IOL) in a secondary care hospital.
  
  
  METHODS
  This is a retrospective cross sectional study on women admitted for labour induction in Aga Khan Hospital for women Karimabad from 1st Jan, 2009 to 31st Dec, 2009. Induction was considered successful if the patient delivered vaginally and failed if it ended up in Caesarean Section.
  
  
  RESULTS
  Eighteen percent of our pregnant population who underwent induction of labour failed to deliver vaginally. About 25% of 328 nulliparous women had failed induction. With a Bishop score of <5 in 84.3%. In 28.2% with prolonged latent phase of more than 20 hours in Caesarean section had to be performed.
  
  
  CONCLUSIONS
  Nulliparity, poor Bishop score and prolonged latent phase had strongest association with failed Induction of Labour. Macrosomia, gestation age, bad obstetric history and pre labour rupture of membranes were other significant risk factors for emergency caesarean sections in IOL.
authors.affiliation: Department of Obstetrics & Gynaecology, The Aga Khan Hospital for Women, Karimabad, Pakistan.
authors.forename: Neelofur Babar
authors.initials: NB
authors.lastname: Khan
authors.forename: Iffat
authors.initials: I
authors.lastname: Ahmed
authors.forename: Ayesha
authors.initials: A
authors.lastname: Malik
authors.forename: Lumaan
authors.initials: L
authors.lastname: Sheikh
mesh_terms: D000328:Adult; D002585:Cesarean Section; D003430:Cross-Sectional Studies; D005260:Female; D005320:Fetal Macrosomia; D005865:Gestational Age; D006785:Hospitals, University; D006801:Humans; D007231:Infant, Newborn; D007751:Labor, Induced / Q000009:adverse effects* / Q000706:statistics & numerical data; D007743:Labor, Obstetric; D016015:Logistic Models; D007744:Obstetric Labor Complications / Q000209:etiology*; D010154:Pakistan; D010298:Parity; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology*; D011256:Pregnancy Outcome; D012189:Retrospective Studies; D012307:Risk Factors; D055815:Young Adult