The US Multi-Society Task Force on Colorectal Cancer sets a target of cecal intubation in at least 90% of colonoscopies.
Dr Hemant Shah and colleagues from Canada conducted a population-based study to determine the colonoscopy completion rate.
The research team also identified factors associated with incomplete procedures.
|13% of colonoscopies were incomplete|
The team assessed men and women aged 50 to 74 years who underwent a colonoscopy in Ontario between 1999 and 2003 were identified.
The first colonoscopy was classified as complete or incomplete.
A generalized estimating equations model was used to evaluate the association between patient, endoscopist, setting factors, and incomplete colonoscopy.
The researchers found that a total of 331,608 individuals had an index colonoscopy, of which 43,483 were incomplete.
The team noted that patients with an incomplete colonoscopy were older, more likely to be female, have a history of prior abdominal surgery, or prior pelvic surgery.
For colonoscopies done in a private office, the odds of an incomplete procedure were more than 3-fold greater than for procedures done in an academic hospital.
Dr Shah's team concluded, "In usual clinical practice in Ontario, 13% of colonoscopies are incomplete."
"The factors most strongly associated with incomplete colonoscopy were increased patient age, female sex, and having the procedure in a private office."
"Quality improvement programs are needed to improve colonoscopy completion rates."