Table 1. The Ottawa Hospital Surgical Patient Average Hospital Costs and Length of Stay, by SSI Outcome Patients with SSI


Patient Category (%)


Inpatient (59%) Mean cost per day, $


Mean length of stay, days


Day patient (33.5%) Mean cost per day, $


Mean length of stay, days


Overnight patient (7.5%) Mean cost per day, $


Mean length of stay, days


Difference (weighted average) Cost per day, $


Length of stay, days Total hospital cost, $


Mean


1,710.19 (US$2,264.58) 14.1


2,352.55 (US$3,115.52) 0.4


1,249.99 (US$1,655.38) 1.2


228.51 (US$302.62) 4.2


6,732.09 (US$8,915.42) Note. SSI, surgical site infection; CI, confidence interval.


994.05 (US$1316.44) 7.5


678.68 (US$898.79) 0.0


693.37 (US$918.24) 0.0


−377.80 (−US$500.33) 1.1


−285.87 (−US$378.58) 95% CI


2,604.92 (US$3,449.74) 22.4


5,489.01 (US$7,269.19) 1.2


3,469.67 (US$4,594.94) 5.4


630.65 (US$835.18) 7.6


21,196.18 (US$28,070.45) Mean


1,842.13 (US$2,439.56) 7.2


1,447.40 (US$1,916.82) 0.1


1,202.97 (US$1,593.11) 0.5


1,413.23 (US$1871.53) 5.6


951.62 (US$1260.25) 0.0


1,212.97 (US$1606.36) 0.0


Patients without SSI 95% CI


2,377.99 (US$3149.21) 9.2


3,911.17 (US$5179.63) 2.7


3,884.85 (US$5144.77) 1.4


Infection Control & Hospital Epidemiology


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