The risk (measured as IRR) of gram-positive peritonitis in the
mupirocin group was the most influential factor impacting the
cost-effectiveness of the routine mupirocin application approach.
Mupirocin would become less cost-effective than control only
when the rate of peritonitis without mupirocin was extremely low
(approaching 0) or when the IRR of gram-positive peritonitis
with mupirocin was approaching 1.0 (when the effect of mupirocin
in preventing peritonitis became similar to control). The effectiveness
of mupirocin in reducing catheter-related infections in PD