complications for colon
resection, including risk of
anastomotic leak and ileus.
When the surgeon enters a CPT
code specific to colectomy, the
calculator will automatically
generate these outcomes.
Although the Surgical Risk
Calculator was conceived to
contribute to surgeons’ ability
to evaluate and assess risk, as
well as to provide objective
numbers to inform patients
about that risk, the calculator
continues to evolve. ACS NSQIP
staff intends to continue to add
more outcomes, particularly
procedure-specific outcomes, and
to improve statistical modeling
whenever possible. New
outcomes will be added with their
appearance in ACS NSQIP quality
models, and the predictor
variable sets will be made more
concise when appropriate.
At a technical level, while
the Risk Calculator’s predictive
accuracy repeatedly has been
shown to be excellent, new
methods are being implemented
to incorporate mathematical
recalibration processes that will
further improve prediction.
Finally, plans are in development
to release Surgical Risk Calculator
versions in the near future for
pediatric patients using the ACS
NSQIP Pediatric dataset and for
bariatric surgery patients using
the ACS Metabolic and Bariatric
Surgical Accreditation and
Quality Improvement Program
dataset. For more information,
contact Mark Cohen, PhD,
Both of these important
programs are available as free
benefits of your membership in
the ACS. Be sure to take advantage
of all they have to offer. ♦
American College of Surgeons. New ACS
NSQIP Surgical Risk Calculator offers
personalized estimates of surgical
complications. Bull Am Coll Surg.
2013;98( 10): 72-73.
Bilimoria KY, Liu Y, Paruch JL, et al.
Development and evaluation of
the universal ACS NSQIP Surgical
Risk Calculator: A decision aid and
informed consent tool for patients
and surgeons . J Am Coll Surg.
Cohen ME, Bilimoria K Y, Ko C Y,
Hall BL. Development of an ACS
NSQIP morbidity and mortality risk
calculator for colorectal surgery. J Am
Coll Surg. 2009;208( 6):1009-1016.
Liu Y, Cohen ME, Hall BL, Ko CY,
Bilimoria K Y. Evaluation and
enhancement of calibration in the ACS
NSQIP Surgical Risk Calculator. J Am
Coll Surg. In press.
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FIGURE 4. REPORTING OPTIONS