title: Adverse events in a Tunisian hospital: results of a retrospective cohort study.
abstract: BACKGROUND
  Despite the worldwide growing attention to patient safety, Tunisia has no data on the magnitude and consequences of hospital adverse events (AEs).
  
  
  OBJECTIVE
  To estimate the incidence, nature and consequences of AEs and preventable AEs in a university hospital in Tunisia.
  
  
  METHODS
  We opted for a two-stage retrospective medical record review of 620 inpatients admitted during 2005 based on the use of 18 screening criteria. Records were reviewed by a trained medical student, then by an expert physician when one or more criteria were identified. Main outcomes measures We determine the incidence, preventability and consequences of the AEs. Patients and admissions characteristics were also recorded.
  
  
  RESULTS
  Among 620 inpatients, 62 inpatients experienced an AE with an incidence of 10% (95% CI [7.6-12.3]). Surgical/invasive procedures and therapeutic errors were the most common AEs (55 and 21%, respectively). Among the confirmed events 60% were judged to be highly preventable and 21% led to patient death. All ages and both genders experienced equal rates of AEs. However, patients who experienced these events were significantly more exposed to extrinsic risk factors (all surgical interventions and invasive procedures that were listed in the revue form 2 of the questionnaire). Physician reviewers estimated that a total of 570 additional hospital days were associated with AEs.
  
  
  CONCLUSIONS
  This study confirms that preventable AEs were not rare in our context. They caused human harm and consumed a significant part of hospital resources. Thus, targeted interventions are needed.
authors.affiliation: Health Information and Quality Authority, George's Court, George's Lane, Smithfield, Dublin 7, Ireland.
authors.forename: Mondher
authors.initials: M
authors.lastname: Letaief
authors.forename: Sana
authors.initials: S
authors.lastname: El Mhamdi
authors.forename: Riham
authors.initials: R
authors.lastname: El-Asady
authors.forename: Sameen
authors.initials: S
authors.lastname: Siddiqi
authors.forename: Ahmed
authors.initials: A
authors.lastname: Abdullatif
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D005260:Female; D019538:Health Care Surveys; D006739:Hospital Administration / Q000706:statistics & numerical data*; D006801:Humans; D015994:Incidence; D007223:Infant; D007902:Length of Stay / Q000706:statistics & numerical data; D008297:Male; D019300:Medical Errors / Q000145:classification / Q000517:prevention & control / Q000706:statistics & numerical data*; D008875:Middle Aged; D011787:Quality of Health Care / Q000706:statistics & numerical data*; D012189:Retrospective Studies; D012307:Risk Factors; D014416:Tunisia; D055815:Young Adult