The authors investigated the incidence of unplanned work absence the day fo
llowing outpatient colonoscopy and examined factors associated with missing
work. A total of 250 patients were studied. Patient demographic informatio
n, the length of thr procedure, time of day the exam was performed, and the
amount and type of sedation medication used was obtained at the time of th
e procedure. The incidence and reasons for missing work were elicited via a
phone survey 7 days post-procedure. Ten patients (4%) had an unplanned wor
k absence the day after their colonoscopy. No complications were noted. Fee
ling sleepy and weak or abdominal pain and bloating were the most common re
asons for missing work. Tn univariate analyses, patients with an unplanned
work absence were more likely to be younger (p = 0.009), and female (p = 0.
02) compared with patients who returned to work. No statistically significa
nt differences were found with regard to the amount of sedation medication
used, the length of the procedure, or whether the procedure was performed i
n the morning or afternoon. Unplanned work absence is low following outpati
ent colonoscopy in a community-based practice. Female gender and younger ag
e an associated with a higher likelihood of missing work. Postprocedure wor
k absence may have a greater economic impact than procedure-related complic
ations.